BufferChunkOverflowError inside @ERROR loops forever - no buffer parameter can stop it

### Describe the bug

If a record is larger than chunk_limit_size, the buffer raises BufferChunkOverflowError and the record is routed to @ERROR. If the output inside @ERROR also has a chunk_limit_size smaller than the record, it raises the same error, and the record is routed to @ERROR again. This repeats without bound.

None of the buffer's failure-handling parameters apply, because this error is raised at emit time rather than at flush time:

- retry_max_times / retry_timeout govern flush failures. No flush has happened yet.
- overflow_action governs BufferOverflowError (buffer is full). This is BufferChunkOverflowError (one record is too large) — a different error class.
- receives a chunk after flush retries are exhausted. No chunk was ever created.

The only way to stop the loop is to set chunk_limit_size in @ERROR larger than the biggest record that will ever arrive. But that you don't have any control on.

### To Reproduce

1. Copy the configuration mentioned below, save the file as **fluent.conf**, make the necessary directory changes accordingly to our environment.

2. run the command ``fluentd -c ./fluent.conf``

3. you will see the infinite loop of the error
`2026-08-04 15:40:35 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 11534390 bytes record (nth: 0) is larger than buffer chunk limit size (7340032)`

### Expected behavior

A record that fails in @ERROR for the same reason it arrived there should be dropped, with a log message saying so. @ERROR is the last-resort path; it should be bounded by construction rather than by the user guessing a large enough chunk_limit_size.

### Your Environment

```markdown
- Fluentd version: 1.19.3
- Operating system: MacOS
- Kernel version: 25.5.0
```

### Your Configuration

```apache

log_level debug
root_dir /Users/tarun/fluentd-error/fluent/unrecovered_error-papa/
flush_interval 10s

@type tail
@id new_id
path /Users/tarun/fluentd-error/fluent/sample-longline4.txt
tag sample.long

@type none

@type stdout
@id stdout_main

@type file
chunk_limit_size 7
path /Users/tarun/fluentd-error/fluent/fluent-buffer/
retry_max_times 5
retry_type exponential_backoff

@type file
@id id_error_file
@log_level debug
path /Users/tarun/fluentd-error/fluent/label-error/

@type file
retry_timeout 30
retry_type exponential_backoff
retry_max_interval 10
chunk_limit_size 7
retry_wait 10s
flush_interval 10s
path /Users/tarun/fluentd-error/fluent/fluent-error-buffer/
retry_max_times 5
overflow_action drop_oldest_chunk


@type file
path /Users/tarun/fluentd-error/fluent/label-error-secondary/

```

### Your Error Log

```shell
2026-08-04 16:56:34 +0530 [info]: fluent/log.rb:372:: starting fluentd-1.19.3 pid=62385 ruby="4.0.6"
2026-08-04 16:56:34 +0530 [info]: fluent/log.rb:372:: spawn command to main: cmdline=["/opt/homebrew/Cellar/ruby/4.0.6/bin/ruby", "-Eascii-8bit:ascii-8bit", "/opt/homebrew/lib/ruby/gems/4.0.0/bin/fluentd", "-c", "./fluent.conf", "--under-supervisor"]
2026-08-04 16:56:35 +0530 [info]: #0 fluent/log.rb:372:: init worker0 logger path=nil rotate_age=nil rotate_size=nil
2026-08-04 16:56:35 +0530 [info]: fluent/log.rb:372:: adding match in @ERROR pattern="**" type="file"
2026-08-04 16:56:35 +0530 [warn]: #0 fluent/log.rb:393:: default timekey interval (1d) will be used. To change the output frequency, please modify the timekey value
2026-08-04 16:56:35 +0530 [warn]: #0 [id_error_file] 'flush_interval' is ignored because default 'flush_mode' is not 'interval': 'lazy'
2026-08-04 16:56:35 +0530 [warn]: #0 fluent/log.rb:393:: default timekey interval (1d) will be used because of missing section. To change the output frequency, please modify the timekey value
2026-08-04 16:56:35 +0530 [info]: fluent/log.rb:372:: adding match pattern="sample.**" type="stdout"
2026-08-04 16:56:35 +0530 [info]: #0 [stdout_main] Oj isn't installed, fallback to JSON as json parser
2026-08-04 16:56:35 +0530 [info]: fluent/log.rb:372:: adding source type="tail"
2026-08-04 16:56:35 +0530 [warn]: #0 [new_id] 'pos_file PATH' parameter is not set to a 'tail' source.
2026-08-04 16:56:35 +0530 [warn]: #0 [new_id] this parameter is highly recommended to save the position to resume tailing.
2026-08-04 16:56:35 +0530 [debug]: #0 fluent/log.rb:351:: No fluent logger for internal event
2026-08-04 16:56:35 +0530 [info]: #0 fluent/log.rb:372:: starting fluentd worker pid=62390 ppid=62385 worker=0
2026-08-04 16:56:35 +0530 [warn]: #0 [stdout_main] restoring buffer file: path = /Users/tarun/fluentd-error/fluent/fluent-buffer/buffer.b65836ea5c74127fce7fc22e600afc387.log
2026-08-04 16:56:35 +0530 [error]: #0 [stdout_main] found broken chunk file during resume. path="/Users/tarun/fluentd-error/fluent/fluent-buffer/buffer.b65836ea5c74127fce7fc22e600afc387.log" mode=:staged err_msg="staged file chunk is empty"
2026-08-04 16:56:35 +0530 [warn]: #0 [stdout_main] bad chunk is moved to /Users/tarun/fluentd-error/fluent/unrecovered_error-papa/backup/worker0/stdout_main/65836ea5c74127fce7fc22e600afc387.log
2026-08-04 16:56:35 +0530 [info]: #0 [stdout_main] Since a broken chunk file was found, it is possible that other files remaining at the time of resuming were also broken. Here is the list of the files.
2026-08-04 16:56:35 +0530 [debug]: #0 [stdout_main] buffer started instance=1328 stage_size=0 queue_size=0
2026-08-04 16:56:35 +0530 [debug]: #0 [stdout_main] flush_thread actually running
2026-08-04 16:56:35 +0530 [debug]: #0 [stdout_main] enqueue_thread actually running
2026-08-04 16:56:35 +0530 [debug]: #0 [id_error_file] restoring buffer file: path = /Users/tarun/fluentd-error/fluent/fluent-error-buffer/buffer.b65836ea5d46861d84071a445e547f724.log
2026-08-04 16:56:35 +0530 [debug]: #0 [id_error_file] buffer started instance=1304 stage_size=0 queue_size=50332088
2026-08-04 16:56:35 +0530 [debug]: #0 [id_error_file] flush_thread actually running
2026-08-04 16:56:35 +0530 [debug]: #0 [id_error_file] enqueue_thread actually running
2026-08-04 16:56:35 +0530 [debug]: #0 [new_id] tailing paths: target = /Users/tarun/fluentd-error/fluent/sample-longline4.txt | existing =
2026-08-04 16:56:35 +0530 [info]: #0 [new_id] following tail of /Users/tarun/fluentd-error/fluent/sample-longline4.txt
2026-08-04 16:56:35 +0530 [info]: #0 fluent/log.rb:372:: fluentd worker is now running worker=0
2026-08-04 16:56:42 +0530 [info]: #0 [new_id] detected rotation of /Users/tarun/fluentd-error/fluent/sample-longline4.txt
2026-08-04 16:56:42 +0530 [info]: #0 [new_id] following tail of /Users/tarun/fluentd-error/fluent/sample-longline4.txt
2026-08-04 16:56:43 +0530 [debug]: #0 [stdout_main] Created new chunk chunk_id="65836edf2e5630c57b6d4b670bcb6459" metadata=#
2026-08-04 16:56:43 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291522 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291522 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291522 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291522 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291522 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291522 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291522 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291522 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291522 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:43 +0530 [debug]: #0 [id_error_file] Created new chunk chunk_id="65836edf3e248fa93d3e49387458bcc0" metadata=#
2026-08-04 16:56:43 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:43 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:44 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:44 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:44 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:44 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:44 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:44 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:44 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:44 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:44 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:44 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:44 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:44 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:44 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:44 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:44 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:44 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:44 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:44 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:44 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:44 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:45 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:45 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:45 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:45 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:45 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:45 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:45 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:45 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:45 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:45 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:45 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:45 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:45 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:45 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:45 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:45 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:45 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:45 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:45 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:45 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:45 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:45 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:45 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:45 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:45 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:46 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:46 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:46 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:46 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:46 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:46 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
2026-08-04 16:56:46 +0530 [warn]: #0 fluent/log.rb:393:: send an error event stream to @ERROR: error_class=Fluent::Plugin::Buffer::BufferChunkOverflowError error="a 6291511 bytes record (nth: 0) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 1) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 2) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 3) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 4) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 5) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 6) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 7) is larger than buffer chunk limit size (7), a 6291511 bytes record (nth: 8) is larger than buffer chunk limit size (7)" location="/opt/homebrew/lib/ruby/gems/4.0.0/gems/fluentd-1.19.3/lib/fluent/plugin/buffer.rb:462:in 'Fluent::Plugin::Buffer#write'" tag="sample.long"
......... continue like this
```

### Additional context

As far as I can tell the cause is that @ERROR is itself a Label, and Label delegates emit_error_event / handle_emits_error to its RootAgent, whose @error_collector is the @ERROR label. So an error raised inside @ERROR is routed back to @ERROR. Nothing marks the event as having already been through the error path, so there is no termination condition. Corrections welcome if I have misread this.

This also affects the case where the @ERROR output is correctly sized but fails transiently — a full disk, a permissions change, a read-only remount. In those situations the error path failing generates more traffic on the error path, which is the opposite of what you want from a log shipper's last resort.

**Suggested fixes**

1. Drop an error event on re-entry into @ERROR, and log at error level.
2. Failing that, at least emit a distinct log line on re-entry. Right now the repeated send an error event stream to @ERROR warning is identical to normal first-pass error logging, so a loop is indistinguishable from many records each failing once.

Start with fluent/plugin/buffer.rb:462, where the logs show BufferChunkOverflowError during write, and reproduce the loop using the supplied fluent.conf with the main output and @ERROR buffers. Trace how errors are routed from the main output into @ERROR and verify that an oversized record reaching @ERROR is bounded, dropped, and logged instead of being routed repeatedly.

Written by the indexing model from the issue text.