WweiL opened a new pull request, #45863:
URL: https://github.com/apache/spark/pull/45863
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When closing the rocksdb instance, we need to wait until all background work
finish. If not, the following error could be observed:
```
24/03/29 06:47:11 INFO RocksDB StateStoreId(opId=0,partId=0,name=default):
[NativeRocksDB-2] [/error_handler.cc:396] Background IO error IO error: No such
file or directory: While open a file for appending:
/ephemeral/tmp/spark-efd53c17-2b8a-4f80-aca0-b767dc06be3d/StateStoreId(opId=0,partId=0,name=default)-732271d8-03b3-4046-a911-5797804df25c/workingDir-3a85e625-e4fb-4a78-b668-941ca16cc7a2/000008.sst:
No such file or directory
24/03/29 06:47:11 ERROR RocksDB StateStoreId(opId=0,partId=0,name=default):
[NativeRocksDB-3] [/db_impl/db_impl_compaction_flush.cc:3021] Waiting after
background flush error: IO error: No such file or directory: While open a file
for appending:
/ephemeral/tmp/spark-efd53c17-2b8a-4f80-aca0-b767dc06be3d/StateStoreId(opId=0,partId=0,name=default)-732271d8-03b3-4046-a911-5797804df25c/workingDir-3a85e625-e4fb-4a78-b668-941ca16cc7a2/000008.sst:
No such file or directoryAccumulated background error counts: 1
<TRUNCATED LOG>
24/03/29 11:54:09 INFO ShutdownHookManager: Deleting directory
/ephemeral/tmp/spark-b5dac908-59cc-4276-80f7-34dab79716b7/StateStoreId(opId=0,partId=0,name=default)-702d3c8f-245e-4119-a763-b8e963d07e7b
24/03/29 06:47:12 INFO ShutdownHookManager: Deleting directory
/ephemeral/tmp/spark-efd53c17-2b8a-4f80-aca0-b767dc06be3d/StateStoreId(opId=0,partId=4,name=default)-0eb30b1b-b92f-4744-aff6-85f9efd2bcf2
24/03/29 06:47:12 INFO ShutdownHookManager: Deleting directory
/ephemeral/tmp/streaming.metadata-d281c16c-89c7-49b3-b65a-6eb2de6ddb6f
pthread lock: Invalid argument
```
In the source code, after this error is thrown, there is a sleep for 1
second and then re lock the original mutex:
https://github.com/facebook/rocksdb/blob/e46ab9d4f0a0e63bfc668421e2994efa918d6570/db/db_impl/db_impl_compaction_flush.cc#L2613
From the logs of RocksDB and ShutdownHookManager , we can see that exactly 1
second after rocks db throws, the pthread lock: Invalid argument is thrown. So
it is likely that this mutex throws.
### Why are the changes needed?
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Transient bug fix
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No
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Existing test should be enough.
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No
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