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https://issues.apache.org/jira/browse/KAFKA-5998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16816157#comment-16816157
]
Tom Wells commented on KAFKA-5998:
----------------------------------
Hi all - I've been running into this same issue for the past few weeks while
building an application which is composed of a number of streams dsl processors.
I've noticed that I only experience this issue when running more than 1
instance of the same processor on the same machine (my laptop). Looking at the
code it's obvious that this could be a problem (write() function in
ProcessorStateManager.java) as it uses a synchronized block to lock any other
threads writing their snapshots, but obviously won't avoid other processes
writing at the same time. A possibly fix is to look at a more robust (possibly
filesystem based) locking mechanism - but i'm no kafka expert (yet!).
Does that make sense or am I barking up the wrong tree?
> /.checkpoint.tmp Not found exception
> ------------------------------------
>
> Key: KAFKA-5998
> URL: https://issues.apache.org/jira/browse/KAFKA-5998
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Affects Versions: 0.11.0.0, 0.11.0.1, 2.1.1
> Reporter: Yogesh BG
> Priority: Critical
> Attachments: 5998.v1.txt, 5998.v2.txt, Topology.txt, exc.txt,
> props.txt, streams.txt
>
>
> I have one kafka broker and one kafka stream running... I am running its
> since two days under load of around 2500 msgs per second.. On third day am
> getting below exception for some of the partitions, I have 16 partitions only
> 0_0 and 0_1 gives this error
> {{09:43:25.955 [ks_0_inst-StreamThread-6] WARN
> o.a.k.s.p.i.ProcessorStateManager - Failed to write checkpoint file to
> /data/kstreams/rtp-kafkastreams/0_1/.checkpoint:
> java.io.FileNotFoundException:
> /data/kstreams/rtp-kafkastreams/0_1/.checkpoint.tmp (No such file or
> directory)
> at java.io.FileOutputStream.open(Native Method) ~[na:1.7.0_111]
> at java.io.FileOutputStream.<init>(FileOutputStream.java:221)
> ~[na:1.7.0_111]
> at java.io.FileOutputStream.<init>(FileOutputStream.java:171)
> ~[na:1.7.0_111]
> at
> org.apache.kafka.streams.state.internals.OffsetCheckpoint.write(OffsetCheckpoint.java:73)
> ~[rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> at
> org.apache.kafka.streams.processor.internals.ProcessorStateManager.checkpoint(ProcessorStateManager.java:324)
> ~[rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> at
> org.apache.kafka.streams.processor.internals.StreamTask$1.run(StreamTask.java:267)
> [rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> at
> org.apache.kafka.streams.processor.internals.StreamsMetricsImpl.measureLatencyNs(StreamsMetricsImpl.java:201)
> [rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> at
> org.apache.kafka.streams.processor.internals.StreamTask.commit(StreamTask.java:260)
> [rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> at
> org.apache.kafka.streams.processor.internals.StreamTask.commit(StreamTask.java:254)
> [rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> at
> org.apache.kafka.streams.processor.internals.AssignedTasks$1.apply(AssignedTasks.java:322)
> [rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> at
> org.apache.kafka.streams.processor.internals.AssignedTasks.applyToRunningTasks(AssignedTasks.java:415)
> [rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> at
> org.apache.kafka.streams.processor.internals.AssignedTasks.commit(AssignedTasks.java:314)
> [rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> at
> org.apache.kafka.streams.processor.internals.StreamThread.commitAll(StreamThread.java:700)
> [rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> at
> org.apache.kafka.streams.processor.internals.StreamThread.maybeCommit(StreamThread.java:683)
> [rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> at
> org.apache.kafka.streams.processor.internals.StreamThread.runOnce(StreamThread.java:523)
> [rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> at
> org.apache.kafka.streams.processor.internals.StreamThread.runLoop(StreamThread.java:480)
> [rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> at
> org.apache.kafka.streams.processor.internals.StreamThread.run(StreamThread.java:457)
> [rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> 09:43:25.974 [ks_0_inst-StreamThread-15] WARN
> o.a.k.s.p.i.ProcessorStateManager - Failed to write checkpoint file to
> /data/kstreams/rtp-kafkastreams/0_0/.checkpoint:
> java.io.FileNotFoundException:
> /data/kstreams/rtp-kafkastreams/0_0/.checkpoint.tmp (No such file or
> directory)
> at java.io.FileOutputStream.open(Native Method) ~[na:1.7.0_111]
> at java.io.FileOutputStream.<init>(FileOutputStream.java:221)
> ~[na:1.7.0_111]
> at java.io.FileOutputStream.<init>(FileOutputStream.java:171)
> ~[na:1.7.0_111]
> at
> org.apache.kafka.streams.state.internals.OffsetCheckpoint.write(OffsetCheckpoint.java:73)
> ~[rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> at
> org.apache.kafka.streams.processor.internals.ProcessorStateManager.checkpoint(ProcessorStateManager.java:324)
> ~[rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> at
> org.apache.kafka.streams.processor.internals.StreamTask$1.run(StreamTask.java:267)
> [rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> at
> org.apache.kafka.streams.processor.internals.StreamsMetricsImpl.measureLatencyNs(StreamsMetricsImpl.java:201)
> [rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> at
> org.apache.kafka.streams.processor.internals.StreamTask.commit(StreamTask.java:260)
> [rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> at
> org.apache.kafka.streams.processor.internals.StreamTask.commit(StreamTask.java:254)
> [rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> at
> org.apache.kafka.streams.processor.internals.AssignedTasks$1.apply(AssignedTasks.java:322)
> [rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> at
> org.apache.kafka.streams.processor.internals.AssignedTasks.applyToRunningTasks(AssignedTasks.java:415)
> [rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> at
> org.apache.kafka.streams.processor.internals.AssignedTasks.commit(AssignedTasks.java:314)
> [rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> at
> org.apache.kafka.streams.processor.internals.StreamThread.commitAll(StreamThread.java:700)
> [rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> at
> org.apache.kafka.streams.processor.internals.StreamThread.maybeCommit(StreamThread.java:683)
> [rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> at
> org.apache.kafka.streams.processor.internals.StreamThread.runOnce(StreamThread.java:523)
> [rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> at
> org.apache.kafka.streams.processor.internals.StreamThread.runLoop(StreamThread.java:480)
> [rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> at
> org.apache.kafka.streams.processor.internals.StreamThread.run(StreamThread.java:457)
> [rtp-kafkastreams-1.0-SNAPSHOT-jar-with-dependencies.jar:na]
> }}
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