[
https://issues.apache.org/jira/browse/FLINK-9269?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Sihua Zhou updated FLINK-9269:
------------------------------
Description:
{code:java}
@Nonnull
@Override
protected SnapshotResult<KeyedStateHandle> performOperation() throws Exception {
// do something
long[] keyGroupRangeOffsets = new long[keyGroupRange.getNumberOfKeyGroups()];
for (int keyGroupPos = 0; keyGroupPos <
keyGroupRange.getNumberOfKeyGroups(); ++keyGroupPos) {
int keyGroupId = keyGroupRange.getKeyGroupId(keyGroupPos);
keyGroupRangeOffsets[keyGroupPos] = localStream.getPos();
outView.writeInt(keyGroupId);
for (Map.Entry<String, StateTable<K, ?, ?>> kvState :
stateTables.entrySet()) {
// do something
}
}
// do something
}
{code}
was:
{code:java}
@Nonnull
@Override
protected
SnapshotResult<KeyedStateHandle> performOperation() throws Exception {
long startTime =
System.currentTimeMillis();
CheckpointStreamFactory.CheckpointStateOutputStream localStream =
this.streamAndResultExtractor.getCheckpointOutputStream();
DataOutputViewStreamWrapper
outView = new DataOutputViewStreamWrapper(localStream);
serializationProxy.write(outView);
long[] keyGroupRangeOffsets =
new long[keyGroupRange.getNumberOfKeyGroups()];
for (int keyGroupPos = 0;
keyGroupPos < keyGroupRange.getNumberOfKeyGroups(); ++keyGroupPos) {
int keyGroupId =
keyGroupRange.getKeyGroupId(keyGroupPos);
keyGroupRangeOffsets[keyGroupPos] = localStream.getPos();
outView.writeInt(keyGroupId);
for (Map.Entry<String,
StateTable<K, ?, ?>> kvState : stateTables.entrySet()) {
try
(OutputStream kgCompressionOut =
keyGroupCompressionDecorator.decorateWithCompression(localStream)) {
DataOutputViewStreamWrapper kgCompressionView = new
DataOutputViewStreamWrapper(kgCompressionOut);
kgCompressionView.writeShort(kVStateToId.get(kvState.getKey()));
cowStateStableSnapshots.get(kvState.getValue()).writeMappingsInKeyGroup(kgCompressionView,
keyGroupId);
} // this will
just close the outer compression stream
}
}
if
(cancelStreamRegistry.unregisterCloseable(streamAndResultExtractor)) {
KeyGroupRangeOffsets
kgOffs = new KeyGroupRangeOffsets(keyGroupRange, keyGroupRangeOffsets);
SnapshotResult<StreamStateHandle> result =
streamAndResultExtractor.closeAndFinalizeCheckpointStreamResult();
streamAndResultExtractor = null;
logOperationCompleted(primaryStreamFactory, startTime);
return
CheckpointStreamWithResultProvider.toKeyedStateHandleSnapshotResult(result,
kgOffs);
}
return SnapshotResult.empty();
}
{code}
> Concurrency problem in HeapKeyedStateBackend when performing checkpoint async
> -----------------------------------------------------------------------------
>
> Key: FLINK-9269
> URL: https://issues.apache.org/jira/browse/FLINK-9269
> Project: Flink
> Issue Type: Bug
> Components: State Backends, Checkpointing
> Affects Versions: 1.5.0
> Reporter: Sihua Zhou
> Assignee: Sihua Zhou
> Priority: Blocker
> Fix For: 1.5.0
>
>
> {code:java}
> @Nonnull
> @Override
> protected SnapshotResult<KeyedStateHandle> performOperation() throws
> Exception {
> // do something
> long[] keyGroupRangeOffsets = new
> long[keyGroupRange.getNumberOfKeyGroups()];
> for (int keyGroupPos = 0; keyGroupPos <
> keyGroupRange.getNumberOfKeyGroups(); ++keyGroupPos) {
> int keyGroupId = keyGroupRange.getKeyGroupId(keyGroupPos);
> keyGroupRangeOffsets[keyGroupPos] = localStream.getPos();
> outView.writeInt(keyGroupId);
> for (Map.Entry<String, StateTable<K, ?, ?>> kvState :
> stateTables.entrySet()) {
> // do something
> }
> }
> // do something
> }
> {code}
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