confluentinc / confluentinc/ksql

Improve "exhausted standby hosts to try" Error Message

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#8,136 0 comments 0 reactions 0 assignees View on GitHub
fix-it-week good first issue query-engine
Dominant language
Java
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Forks
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Avg merge
1d 7h
Merged PRs (30d)
36

Description

Similarly to https://github.com/confluentinc/ksql/issues/7772, this error message is not super helpful to understand what's going on:

https://github.com/confluentinc/ksql/blob/1a1297ab59db0af416a924d4135b93dcc5003561/ksqldb-engine/src/main/java/io/confluent/ksql/physical/pull/HARouting.java#L244-L246

We should include more information to help expose what's going on, such as which partitions failed and which hosts were attempted.

Contributor guide

Open the contributing guide

Research direction

Start with ksqldb-engine/src/main/java/io/confluent/ksql/physical/pull/HARouting.java at lines 244-246 and review the related discussion in issue 7772. Trace how failed partitions and attempted hosts are available when the error is assembled. Done means the exhausted-standby-hosts message exposes which partitions failed and which hosts were attempted.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
stream-processing
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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