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Posted to issues@flink.apache.org by "Stephan Ewen (JIRA)" <ji...@apache.org> on 2019/08/02 17:03:00 UTC
[jira] [Closed] (FLINK-13541) State Processor Api sets the wrong
key selector when writing savepoints
[ https://issues.apache.org/jira/browse/FLINK-13541?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Stephan Ewen closed FLINK-13541.
--------------------------------
> State Processor Api sets the wrong key selector when writing savepoints
> -----------------------------------------------------------------------
>
> Key: FLINK-13541
> URL: https://issues.apache.org/jira/browse/FLINK-13541
> Project: Flink
> Issue Type: Bug
> Components: API / DataStream, Runtime / State Backends
> Reporter: Seth Wiesman
> Assignee: Seth Wiesman
> Priority: Blocker
> Labels: pull-request-available
> Fix For: 1.9.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> The state processor api is setting the wrong key selector for its StreamConfig when writing savepoints. It uses two key selectors internally that happen to output the same value for integer keys but not in general.
> {noformat}
> Caused by: java.lang.RuntimeException: Exception occurred while setting the current key context.
> at org.apache.flink.streaming.api.operators.AbstractStreamOperator.setCurrentKey(AbstractStreamOperator.java:641)
> at org.apache.flink.streaming.api.operators.AbstractStreamOperator.setKeyContextElement(AbstractStreamOperator.java:627)
> at org.apache.flink.streaming.api.operators.AbstractStreamOperator.setKeyContextElement1(AbstractStreamOperator.java:615)
> at org.apache.flink.state.api.output.BoundedStreamTask.performDefaultAction(BoundedStreamTask.java:83)
> at org.apache.flink.streaming.runtime.tasks.mailbox.execution.MailboxProcessor.runMailboxLoop(MailboxProcessor.java:140)
> at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:378)
> at org.apache.flink.state.api.output.BoundedOneInputStreamTaskRunner.mapPartition(BoundedOneInputStreamTaskRunner.java:76)
> at org.apache.flink.runtime.operators.MapPartitionDriver.run(MapPartitionDriver.java:103)
> at org.apache.flink.runtime.operators.BatchTask.run(BatchTask.java:504)
> at org.apache.flink.runtime.operators.BatchTask.invoke(BatchTask.java:369)
> at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:688)
> at org.apache.flink.runtime.taskmanager.Task.run(Task.java:518)
> at java.lang.Thread.run(Thread.java:748)
> Caused by: java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String
> at org.apache.flink.api.common.typeutils.base.StringSerializer.serialize(StringSerializer.java:33)
> at org.apache.flink.contrib.streaming.state.RocksDBSerializedCompositeKeyBuilder.serializeKeyGroupAndKey(RocksDBSerializedCompositeKeyBuilder.java:159)
> at org.apache.flink.contrib.streaming.state.RocksDBSerializedCompositeKeyBuilder.setKeyAndKeyGroup(RocksDBSerializedCompositeKeyBuilder.java:96)
> at org.apache.flink.contrib.streaming.state.RocksDBKeyedStateBackend.setCurrentKey(RocksDBKeyedStateBackend.java:303)
> at org.apache.flink.streaming.api.operators.AbstractStreamOperator.setCurrentKey(AbstractStreamOperator.java:639)
> ... 12 more
> {noformat}
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