3fs write data Input/output error

```shell
root@3fs:/3fs/stage# cp /etc/fstab .
cp: failed to close './fstab': Input/output error
```
```shell
root@3fs:/var/log/3fs# tail -f hf3fs_fuse_main-err.log
[2025-03-19T09:46:44.854210120+08:00 CliBG1:19421 MetaClient.cc:234 ERROR] MetaClient failed to run close task {{"user":"(uid 0, gid 0, groups ())","client":{"uuid":"e1537c48-038b-4f96-a16b-d8e2c9d8d02e","hostname":"3fs"},"forward":0,"uuid":"00000000-0000-0000-0000-000000000000","inode":"0x000000000001f800","session":{"client":{"uuid":"e1537c48-038b-4f96-a16b-d8e2c9d8d02e","hostname":"3fs"},"session":"fa0e430f-cee3-435f-977a-72f3fce30c13"},"updateLength":true,"atime":null,"mtime":"2025-03-19 09:45:13","lengthHint":null}, backoff 1s 600ms}, retry true
[2025-03-19T09:46:53.125981138+08:00 CliBG1:19421 MetaClient.cc:234 ERROR] MetaClient failed to run close task {{"user":"(uid 0, gid 0, groups ())","client":{"uuid":"e1537c48-038b-4f96-a16b-d8e2c9d8d02e","hostname":"3fs"},"forward":0,"uuid":"00000000-0000-0000-0000-000000000000","inode":"0x000000000001f800","session":{"client":{"uuid":"e1537c48-038b-4f96-a16b-d8e2c9d8d02e","hostname":"3fs"},"session":"fa0e430f-cee3-435f-977a-72f3fce30c13"},"updateLength":true,"atime":null,"mtime":"2025-03-19 09:45:13","lengthHint":null}, backoff 3s 200ms}, retry true
[2025-03-19T09:47:04.593119903+08:00 CliBG0:19420 MetaClient.cc:234 ERROR] MetaClient failed to run close task {{"user":"(uid 0, gid 0, groups ())","client":{"uuid":"e1537c48-038b-4f96-a16b-d8e2c9d8d02e","hostname":"3fs"},"forward":0,"uuid":"00000000-0000-0000-0000-000000000000","inode":"0x000000000001f800","session":{"client":{"uuid":"e1537c48-038b-4f96-a16b-d8e2c9d8d02e","hostname":"3fs"},"session":"fa0e430f-cee3-435f-977a-72f3fce30c13"},"updateLength":true,"atime":null,"mtime":"2025-03-19 09:45:13","lengthHint":null}, backoff 6s 400ms}, retry true
[2025-03-19T09:47:19.690132036+08:00 CliBG0:19420 MetaClient.cc:234 ERROR] MetaClient failed to run close task {{"user":"(uid 0, gid 0, groups ())","client":{"uuid":"e1537c48-038b-4f96-a16b-d8e2c9d8d02e","hostname":"3fs"},"forward":0,"uuid":"00000000-0000-0000-0000-000000000000","inode":"0x000000000001f800","session":{"client":{"uuid":"e1537c48-038b-4f96-a16b-d8e2c9d8d02e","hostname":"3fs"},"session":"fa0e430f-cee3-435f-977a-72f3fce30c13"},"updateLength":true,"atime":null,"mtime":"2025-03-19 09:45:13","lengthHint":null}, backoff 10s}, retry true
[2025-03-19T09:47:34.793061291+08:00 CliBG1:19421 MetaClient.cc:234 ERROR] MetaClient failed to run close task {{"user":"(uid 0, gid 0, groups ())","client":{"uuid":"e1537c48-038b-4f96-a16b-d8e2c9d8d02e","hostname":"3fs"},"forward":0,"uuid":"00000000-0000-0000-0000-000000000000","inode":"0x000000000001f800","session":{"client":{"uuid":"e1537c48-038b-4f96-a16b-d8e2c9d8d02e","hostname":"3fs"},"session":"fa0e430f-cee3-435f-977a-72f3fce30c13"},"updateLength":true,"atime":null,"mtime":"2025-03-19 09:45:13","lengthHint":null}, backoff 10s}, retry true
[2025-03-19T09:47:49.896841950+08:00 CliBG1:19421 MetaClient.cc:234 ERROR] MetaClient failed to run close task {{"user":"(uid 0, gid 0, groups ())","client":{"uuid":"e1537c48-038b-4f96-a16b-d8e2c9d8d02e","hostname":"3fs"},"forward":0,"uuid":"00000000-0000-0000-0000-000000000000","inode":"0x000000000001f800","session":{"client":{"uuid":"e1537c48-038b-4f96-a16b-d8e2c9d8d02e","hostname":"3fs"},"session":"fa0e430f-cee3-435f-977a-72f3fce30c13"},"updateLength":true,"atime":null,"mtime":"2025-03-19 09:45:13","lengthHint":null}, backoff 10s}, retry true
[2025-03-19T09:48:04.992859500+08:00 CliBG1:19421 MetaClient.cc:234 ERROR] MetaClient failed to run close task {{"user":"(uid 0, gid 0, groups ())","client":{"uuid":"e1537c48-038b-4f96-a16b-d8e2c9d8d02e","hostname":"3fs"},"forward":0,"uuid":"00000000-0000-0000-0000-000000000000","inode":"0x000000000001f800","session":{"client":{"uuid":"e1537c48-038b-4f96-a16b-d8e2c9d8d02e","hostname":"3fs"},"session":"fa0e430f-cee3-435f-977a-72f3fce30c13"},"updateLength":true,"atime":null,"mtime":"2025-03-19 09:45:13","lengthHint":null}, backoff 10s}, retry true
[2025-03-19T09:48:20.093259122+08:00 CliBG1:19421 MetaClient.cc:234 ERROR] MetaClient failed to run close task {{"user":"(uid 0, gid 0, groups ())","client":{"uuid":"e1537c48-038b-4f96-a16b-d8e2c9d8d02e","hostname":"3fs"},"forward":0,"uuid":"00000000-0000-0000-0000-000000000000","inode":"0x000000000001f800","session":{"client":{"uuid":"e1537c48-038b-4f96-a16b-d8e2c9d8d02e","hostname":"3fs"},"session":"fa0e430f-cee3-435f-977a-72f3fce30c13"},"updateLength":true,"atime":null,"mtime":"2025-03-19 09:45:13","lengthHint":null}, backoff 10s}, retry true
[2025-03-19T09:48:35.172193761+08:00 CliBG0:19420 MetaClient.cc:234 ERROR] MetaClient failed to run close task {{"user":"(uid 0, gid 0, groups ())","client":{"uuid":"e1537c48-038b-4f96-a16b-d8e2c9d8d02e","hostname":"3fs"},"forward":0,"uuid":"00000000-0000-0000-0000-000000000000","inode":"0x000000000001f800","session":{"client":{"uuid":"e1537c48-038b-4f96-a16b-d8e2c9d8d02e","hostname":"3fs"},"session":"fa0e430f-cee3-435f-977a-72f3fce30c13"},"updateLength":true,"atime":null,"mtime":"2025-03-19 09:45:13","lengthHint":null}, backoff 10s}, retry true
[2025-03-19T09:48:50.227867018+08:00 CliBG1:19421 MetaClient.cc:234 ERROR] MetaClient failed to run close task {{"user":"(uid 0, gid 0, groups ())","client":{"uuid":"e1537c48-038b-4f96-a16b-d8e2c9d8d02e","hostname":"3fs"},"forward":0,"uuid":"00000000-0000-0000-0000-000000000000","inode":"0x000000000001f800","session":{"client":{"uuid":"e1537c48-038b-4f96-a16b-d8e2c9d8d02e","hostname":"3fs"},"session":"fa0e430f-cee3-435f-977a-72f3fce30c13"},"updateLength":true,"atime":null,"mtime":"2025-03-19 09:45:13","lengthHint":null}, backoff 10s}, retry true
[2025-03-19T09:49:05.293091134+08:00 CliBG1:19421 MetaClient.cc:234 ERROR] MetaClient failed to run close task {{"user":"(uid 0, gid 0, groups ())","client":{"uuid":"e1537c48-038b-4f96-a16b-d8e2c9d8d02e","hostname":"3fs"},"forward":0,"uuid":"00000000-0000-0000-0000-000000000000","inode":"0x000000000001f800","session":{"client":{"uuid":"e1537c48-038b-4f96-a16b-d8e2c9d8d02e","hostname":"3fs"},"session":"fa0e430f-cee3-435f-977a-72f3fce30c13"},"updateLength":true,"atime":null,"mtime":"2025-03-19 09:45:13","lengthHint":null}, backoff 10s}, retry true
```
```shell
root@3fs:/var/log/3fs# tail -f hf3fs_meta_main-err.log
[2025-03-19T09:48:35.130991880+08:00 SvrProc1:13349 StorageClientImpl.cc:1173 ERROR] Give up retrying 2/16 ops 0x7febc6e493e0 after #2 retries, elapsed time: 5004ms, max retry time: 5000ms, user: Uid(0)/Gid(0), usercall: #657
[2025-03-19T09:48:35.131095346+08:00 SvrProc1:13349 StorageClientImpl.cc:2056 ERROR] #1/16 Failed queryLastChunk operation 0x7febc6ff4e00 with id RequestId(0), routing target: ChainId(900600002)@ChainVersion(9)@RoutingInfoVersion(23):TargetId(0)@NodeId(0):ChannelId(0)#ChannelSeqNum(0), chunk range: ChunkId(00000000-00000001-F8000000-00000000), user: Uid(0)/Gid(0), usercall: #657, status: StorageClient::NotAvailable(7005)
[2025-03-19T09:48:35.131132985+08:00 SvrProc1:13349 StorageClientImpl.cc:2056 ERROR] #2/16 Failed queryLastChunk operation 0x7febc6ff4ed8 with id RequestId(0), routing target: ChainId(900600001)@ChainVersion(9)@RoutingInfoVersion(23):TargetId(0)@NodeId(0):ChannelId(0)#ChannelSeqNum(0), chunk range: ChunkId(00000000-00000001-F8000000-00000000), user: Uid(0)/Gid(0), usercall: #657, status: StorageClient::NotAvailable(7005)
[2025-03-19T09:48:35.131158815+08:00 SvrProc1:13349 StorageClientImpl.cc:2056 ERROR] Finally collected 2/16 failed queryLastChunk operations 0x7febc6e493e0 issued by user Uid(0)/Gid(0), usercall: #657
[2025-03-19T09:48:35.131214497+08:00 SvrProc1:13349 FileOperation.cc:137 ERROR] Failed to quertLastChunk from chain ChainId(900600002), err StorageClient::NotAvailable(7005)
[2025-03-19T09:48:50.183682702+08:00 SvrProc0:13348 StorageClientImpl.cc:1173 ERROR] Give up retrying 2/16 ops 0x7feb9991afe0 after #2 retries, elapsed time: 5002ms, max retry time: 5000ms, user: Uid(0)/Gid(0), usercall: #667
[2025-03-19T09:48:50.183772583+08:00 SvrProc0:13348 StorageClientImpl.cc:2056 ERROR] #1/16 Failed queryLastChunk operation 0x7feb9990e000 with id RequestId(0), routing target: ChainId(900600002)@ChainVersion(9)@RoutingInfoVersion(23):TargetId(0)@NodeId(0):ChannelId(0)#ChannelSeqNum(0), chunk range: ChunkId(00000000-00000001-F8000000-00000000), user: Uid(0)/Gid(0), usercall: #667, status: StorageClient::NotAvailable(7005)
[2025-03-19T09:48:50.183832383+08:00 SvrProc0:13348 StorageClientImpl.cc:2056 ERROR] #2/16 Failed queryLastChunk operation 0x7feb9990e0d8 with id RequestId(0), routing target: ChainId(900600001)@ChainVersion(9)@RoutingInfoVersion(23):TargetId(0)@NodeId(0):ChannelId(0)#ChannelSeqNum(0), chunk range: ChunkId(00000000-00000001-F8000000-00000000), user: Uid(0)/Gid(0), usercall: #667, status: StorageClient::NotAvailable(7005)
[2025-03-19T09:48:50.183857453+08:00 SvrProc0:13348 StorageClientImpl.cc:2056 ERROR] Finally collected 2/16 failed queryLastChunk operations 0x7feb9991afe0 issued by user Uid(0)/Gid(0), usercall: #667
[2025-03-19T09:48:50.183911273+08:00 SvrProc0:13348 FileOperation.cc:137 ERROR] Failed to quertLastChunk from chain ChainId(900600002), err StorageClient::NotAvailable(7005)
```
```shell
root@3fs:/var/log/3fs# /opt/3fs/bin/admin_cli -cfg /opt/3fs/etc/admin_cli.toml --config.mgmtd_client.mgmtd_server_addresses '["IPoIB://10.252.0.100:8000"]' "list-chains"
ChainId ReferencedBy ChainVersion Status PreferredOrder Target Target Target
900100001 1 6 SERVING [] 101000100101(SERVING-UPTODATE) 101000300101(SERVING-UPTODATE) 101000200101(SERVING-UPTODATE)
900100002 1 6 SERVING [] 101000100102(SERVING-UPTODATE) 101000300102(SERVING-UPTODATE) 101000200102(SERVING-UPTODATE)
900100003 1 6 SERVING [] 101000100103(SERVING-UPTODATE) 101000300103(SERVING-UPTODATE) 101000200103(SERVING-UPTODATE)
900100004 1 6 SERVING [] 101000100104(SERVING-UPTODATE) 101000300104(SERVING-UPTODATE) 101000200104(SERVING-UPTODATE)
900100005 1 6 SERVING [] 101000100105(SERVING-UPTODATE) 101000300105(SERVING-UPTODATE) 101000200105(SERVING-UPTODATE)
900100006 1 6 SERVING [] 101000100106(SERVING-UPTODATE) 101000300106(SERVING-UPTODATE) 101000200106(SERVING-UPTODATE)
900200001 1 6 SERVING [] 101000100201(SERVING-UPTODATE) 101000300201(SERVING-UPTODATE) 101000200201(SERVING-UPTODATE)
900200002 1 6 SERVING [] 101000100202(SERVING-UPTODATE) 101000300202(SERVING-UPTODATE) 101000200202(SERVING-UPTODATE)
900200003 1 6 SERVING [] 101000100203(SERVING-UPTODATE) 101000300203(SERVING-UPTODATE) 101000200203(SERVING-UPTODATE)
900200004 1 6 SERVING [] 101000100204(SERVING-UPTODATE) 101000300204(SERVING-UPTODATE) 101000200204(SERVING-UPTODATE)
900200005 1 6 SERVING [] 101000100205(SERVING-UPTODATE) 101000300205(SERVING-UPTODATE) 101000200205(SERVING-UPTODATE)
900200006 1 6 SERVING [] 101000100206(SERVING-UPTODATE) 101000300206(SERVING-UPTODATE) 101000200206(SERVING-UPTODATE)
900300001 1 6 SERVING [] 101000100301(SERVING-UPTODATE) 101000300301(SERVING-UPTODATE) 101000200301(SERVING-UPTODATE)
900300002 1 6 SERVING [] 101000100302(SERVING-UPTODATE) 101000300302(SERVING-UPTODATE) 101000200302(SERVING-UPTODATE)
900300003 1 6 SERVING [] 101000100303(SERVING-UPTODATE) 101000300303(SERVING-UPTODATE) 101000200303(SERVING-UPTODATE)
900300004 1 6 SERVING [] 101000100304(SERVING-UPTODATE) 101000300304(SERVING-UPTODATE) 101000200304(SERVING-UPTODATE)
900300005 1 6 SERVING [] 101000100305(SERVING-UPTODATE) 101000300305(SERVING-UPTODATE) 101000200305(SERVING-UPTODATE)
900300006 1 6 SERVING [] 101000100306(SERVING-UPTODATE) 101000300306(SERVING-UPTODATE) 101000200306(SERVING-UPTODATE)
900400001 1 6 SERVING [] 101000100401(SERVING-UPTODATE) 101000300401(SERVING-UPTODATE) 101000200401(SERVING-UPTODATE)
900400002 1 6 SERVING [] 101000100402(SERVING-UPTODATE) 101000300402(SERVING-UPTODATE) 101000200402(SERVING-UPTODATE)
900400003 1 6 SERVING [] 101000100403(SERVING-UPTODATE) 101000300403(SERVING-UPTODATE) 101000200403(SERVING-UPTODATE)
900400004 1 6 SERVING [] 101000100404(SERVING-UPTODATE) 101000300404(SERVING-UPTODATE) 101000200404(SERVING-UPTODATE)
900400005 1 6 SERVING [] 101000100405(SERVING-UPTODATE) 101000300405(SERVING-UPTODATE) 101000200405(SERVING-UPTODATE)
900400006 1 6 SERVING [] 101000100406(SERVING-UPTODATE) 101000300406(SERVING-UPTODATE) 101000200406(SERVING-UPTODATE)
900500001 1 6 SERVING [] 101000100501(SERVING-UPTODATE) 101000300501(SERVING-UPTODATE) 101000200501(SERVING-UPTODATE)
900500002 1 6 SERVING [] 101000100502(SERVING-UPTODATE) 101000300502(SERVING-UPTODATE) 101000200502(SERVING-UPTODATE)
900500003 1 6 SERVING [] 101000100503(SERVING-UPTODATE) 101000300503(SERVING-UPTODATE) 101000200503(SERVING-UPTODATE)
900500004 1 6 SERVING [] 101000100504(SERVING-UPTODATE) 101000300504(SERVING-UPTODATE) 101000200504(SERVING-UPTODATE)
900500005 1 6 SERVING [] 101000100505(SERVING-UPTODATE) 101000300505(SERVING-UPTODATE) 101000200505(SERVING-UPTODATE)
900500006 1 6 SERVING [] 101000100506(SERVING-UPTODATE) 101000300506(SERVING-UPTODATE) 101000200506(SERVING-UPTODATE)
900600001 1 9 UNAVAILABLE [] 101000200601(LASTSRV-OFFLINE) 101000100601(OFFLINE-OFFLINE) 101000300601(OFFLINE-OFFLINE)
900600002 1 9 UNAVAILABLE [] 101000200602(LASTSRV-OFFLINE) 101000100602(OFFLINE-OFFLINE) 101000300602(OFFLINE-OFFLINE)
900600003 1 9 UNAVAILABLE [] 101000200603(LASTSRV-OFFLINE) 101000100603(OFFLINE-OFFLINE) 101000300603(OFFLINE-OFFLINE)
900600004 1 9 UNAVAILABLE [] 101000200604(LASTSRV-OFFLINE) 101000100604(OFFLINE-OFFLINE) 101000300604(OFFLINE-OFFLINE)
900600005 1 9 UNAVAILABLE [] 101000200605(LASTSRV-OFFLINE) 101000100605(OFFLINE-OFFLINE) 101000300605(OFFLINE-OFFLINE)
900600006 1 9 UNAVAILABLE [] 101000200606(LASTSRV-OFFLINE) 101000100606(OFFLINE-OFFLINE) 101000300606(OFFLINE-OFFLINE)
900700001 1 6 SERVING [] 101000100701(SERVING-UPTODATE) 101000300701(SERVING-UPTODATE) 101000200701(SERVING-UPTODATE)
900700002 1 6 SERVING [] 101000100702(SERVING-UPTODATE) 101000300702(SERVING-UPTODATE) 101000200702(SERVING-UPTODATE)
900700003 1 6 SERVING [] 101000100703(SERVING-UPTODATE) 101000300703(SERVING-UPTODATE) 101000200703(SERVING-UPTODATE)
900700004 1 6 SERVING [] 101000100704(SERVING-UPTODATE) 101000300704(SERVING-UPTODATE) 101000200704(SERVING-UPTODATE)
900700005 1 6 SERVING [] 101000100705(SERVING-UPTODATE) 101000300705(SERVING-UPTODATE) 101000200705(SERVING-UPTODATE)
900700006 1 6 SERVING [] 101000100706(SERVING-UPTODATE) 101000300706(SERVING-UPTODATE) 101000200706(SERVING-UPTODATE)
900800001 1 6 SERVING [] 101000100801(SERVING-UPTODATE) 101000300801(SERVING-UPTODATE) 101000200801(SERVING-UPTODATE)
900800002 1 6 SERVING [] 101000100802(SERVING-UPTODATE) 101000300802(SERVING-UPTODATE) 101000200802(SERVING-UPTODATE)
900800003 1 6 SERVING [] 101000100803(SERVING-UPTODATE) 101000300803(SERVING-UPTODATE) 101000200803(SERVING-UPTODATE)
900800004 1 6 SERVING [] 101000100804(SERVING-UPTODATE) 101000300804(SERVING-UPTODATE) 101000200804(SERVING-UPTODATE)
900800005 1 6 SERVING [] 101000100805(SERVING-UPTODATE) 101000300805(SERVING-UPTODATE) 101000200805(SERVING-UPTODATE)
900800006 1 6 SERVING [] 101000100806(SERVING-UPTODATE) 101000300806(SERVING-UPTODATE) 101000200806(SERVING-UPTODATE)
```
```shell
root@3fs:/var/log/3fs# /opt/3fs/bin/admin_cli -cfg /opt/3fs/etc/admin_cli.toml --config.mgmtd_client.mgmtd_server_addresses '["IPoIB://10.252.0.100:8000"]' "list-nodes"
Id Type Status Hostname Pid Tags LastHeartbeatTime ConfigVersion ReleaseVersion
1 MGMTD PRIMARY_MGMTD 3fs 13590 [] N/A 1(UPTODATE) 250228-dev-1-999999-3a30c53b
100 META HEARTBEAT_CONNECTED 3fs 13295 [] 2025-03-19 09:52:56 2(UPTODATE) 250228-dev-1-999999-3a30c53b
10001 STORAGE HEARTBEAT_CONNECTED 3fs 18095 [] 2025-03-19 09:52:59 0(UPTODATE) 250228-dev-1-999999-3a30c53b
10002 STORAGE HEARTBEAT_CONNECTED 3fs 18032 [] 2025-03-19 09:53:02 0(UPTODATE) 250228-dev-1-999999-3a30c53b
10003 STORAGE HEARTBEAT_CONNECTED 3fs 18033 [] 2025-03-19 09:53:02 0(UPTODATE) 250228-dev-1-999999-3a30c53b
```

Reproduce the failed `cp /etc/fstab .` close operation and inspect the MetaClient.cc, StorageClientImpl.cc, and FileOperation.cc log paths shown in the report. Start by checking the repeated `queryLastChunk` failures and `StorageClient::NotAvailable(7005)` status, then use `admin_cli`'s `list-chains` command to compare chain availability. Done means the write closes successfully without the reported I/O error or recurring close-task failures.

Written by the indexing model from the issue text.