SteNicholas opened a new pull request, #9395:
URL: https://github.com/apache/hudi/pull/9395
### Change Logs
`HoodieEngineContext` should not use parallel stream with parallelism
greater than the number of CPU cores to avoid `OutOfMemoryError` of
`ForkJoinTask`, of which stacktrace as follows:
```
Caused by: java.lang.OutOfMemoryError
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at
java.util.concurrent.ForkJoinTask.getThrowableException(ForkJoinTask.java:598)
at
java.util.concurrent.ForkJoinTask.reportException(ForkJoinTask.java:677)
at java.util.concurrent.ForkJoinTask.invoke(ForkJoinTask.java:735)
at
java.util.stream.ReduceOps$ReduceOp.evaluateParallel(ReduceOps.java:714)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:233)
at
java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
at
org.apache.hudi.client.common.HoodieFlinkEngineContext.map(HoodieFlinkEngineContext.java:101)
at
org.apache.hudi.table.action.clean.CleanPlanActionExecutor.requestClean(CleanPlanActionExecutor.java:117)
at
org.apache.hudi.table.action.clean.CleanPlanActionExecutor.requestClean(CleanPlanActionExecutor.java:145)
at
org.apache.hudi.table.action.clean.CleanPlanActionExecutor.execute(CleanPlanActionExecutor.java:170)
at
org.apache.hudi.table.HoodieFlinkCopyOnWriteTable.scheduleCleaning(HoodieFlinkCopyOnWriteTable.java:353)
at
org.apache.hudi.client.BaseHoodieWriteClient.scheduleTableServiceInternal(BaseHoodieWriteClient.java:1434)
at
org.apache.hudi.client.BaseHoodieWriteClient.clean(BaseHoodieWriteClient.java:891)
at
org.apache.hudi.async.AsyncCleanerService.lambda$startService$0(AsyncCleanerService.java:68)
at
java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1590)
```
### Impact
`HoodieEngineContext` does not use `BaseStream#parallel()` with parallelism
greater than CPU cores.
### Risk level (write none, low medium or high below)
none.
### Documentation Update
none.
### Contributor's checklist
- [x] Read through [contributor's
guide](https://hudi.apache.org/contribute/how-to-contribute)
- [x] Change Logs and Impact were stated clearly
- [x] Adequate tests were added if applicable
- [x] CI passed
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
