[
https://issues.apache.org/jira/browse/FLINK-10175?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16587555#comment-16587555
]
ASF GitHub Bot commented on FLINK-10175:
----------------------------------------
kl0u edited a comment on issue #6583: [FLINK-10175] Fix concurrent access to
shared buffer between RocksDBMapState and querable state
URL: https://github.com/apache/flink/pull/6583#issuecomment-414705770
@StefanRRichter
```
Exception in thread "main" java.util.concurrent.ExecutionException:
java.lang.RuntimeException: Failed request 73.
Caused by: java.lang.RuntimeException: Failed request 73.
Caused by: java.lang.RuntimeException: Error while processing request with
ID 73. Caused by: java.lang.ArrayIndexOutOfBoundsException: 17
at
org.apache.flink.core.memory.DataInputDeserializer.readBoolean(DataInputDeserializer.java:123)
at
org.apache.flink.api.java.typeutils.runtime.PojoSerializer.deserialize(PojoSerializer.java:405)
at
org.apache.flink.contrib.streaming.state.RocksDBMapState.deserializeUserValue(RocksDBMapState.java:353)
at
org.apache.flink.contrib.streaming.state.RocksDBMapState.access$100(RocksDBMapState.java:66)
at
org.apache.flink.contrib.streaming.state.RocksDBMapState$RocksDBMapEntry.getValue(RocksDBMapState.java:454)
at
org.apache.flink.queryablestate.client.state.serialization.KvStateSerializer.serializeMap(KvStateSerializer.java:222)
at
org.apache.flink.contrib.streaming.state.RocksDBMapState.getSerializedValue(RocksDBMapState.java:298)
at
org.apache.flink.queryablestate.server.KvStateServerHandler.getSerializedValue(KvStateServerHandler.java:107)
at
org.apache.flink.queryablestate.server.KvStateServerHandler.handleRequest(KvStateServerHandler.java:84)
at
org.apache.flink.queryablestate.server.KvStateServerHandler.handleRequest(KvStateServerHandler.java:48)
at
org.apache.flink.queryablestate.network.AbstractServerHandler$AsyncRequestTask.run(AbstractServerHandler.java:236)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
at
org.apache.flink.queryablestate.server.KvStateServerHandler.handleRequest(KvStateServerHandler.java:95)
at
org.apache.flink.queryablestate.server.KvStateServerHandler.handleRequest(KvStateServerHandler.java:48)
at
org.apache.flink.queryablestate.network.AbstractServerHandler$AsyncRequestTask.run(AbstractServerHandler.java:236)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
at
org.apache.flink.queryablestate.network.AbstractServerHandler$AsyncRequestTask.lambda$run$11(AbstractServerHandler.java:273)
at
java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:760)
at
java.util.concurrent.CompletableFuture.uniWhenCompleteStage(CompletableFuture.java:778)
at
java.util.concurrent.CompletableFuture.whenComplete(CompletableFuture.java:2140)
at
org.apache.flink.queryablestate.network.AbstractServerHandler$AsyncRequestTask.run(AbstractServerHandler.java:236)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
at
java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357)
at
java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1895)
at
org.apache.flink.streaming.tests.queryablestate.QsStateClient.getMapState(QsStateClient.java:121)
at
org.apache.flink.streaming.tests.queryablestate.QsStateClient.main(QsStateClient.java:93)
```
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> Fix concurrent access to shared buffer in map state / querable state
> --------------------------------------------------------------------
>
> Key: FLINK-10175
> URL: https://issues.apache.org/jira/browse/FLINK-10175
> Project: Flink
> Issue Type: Bug
> Components: State Backends, Checkpointing
> Affects Versions: 1.7.0
> Reporter: Stefan Richter
> Assignee: Stefan Richter
> Priority: Critical
> Labels: pull-request-available
> Fix For: 1.7.0
>
>
> Accidental sharing of buffers between event processing loop and queryable
> state thread can happen in {{RocksDBMapState::deserializeUserKey}}. Queryable
> state should provide a separate buffer.
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