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Posted to issues@ignite.apache.org by "Vladimir Pligin (Jira)" <ji...@apache.org> on 2021/03/17 13:07:00 UTC
[jira] [Created] (IGNITE-14331) Possible distributed race related
to a data streamer flushing leading to a thread being stuck forever trying
to close the streamer
Vladimir Pligin created IGNITE-14331:
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Summary: Possible distributed race related to a data streamer flushing leading to a thread being stuck forever trying to close the streamer
Key: IGNITE-14331
URL: https://issues.apache.org/jira/browse/IGNITE-14331
Project: Ignite
Issue Type: Bug
Components: streaming
Affects Versions: 2.10
Reporter: Vladimir Pligin
It seems that a streamer could stuck forever flushing internal buffers on a client side.
It will stay in a busy-loop forever hoping on remapping but it's possible that it won't happen for example in case of long GC pauses on server(s) and long timeouts.
It that case a streamer would be trapped inside this [loop|https://github.com/apache/ignite/blob/ignite-2.10/modules/core/src/main/java/org/apache/ignite/internal/processors/datastreamer/DataStreamerImpl.java#L1168].
Stack trace snippet:
{code:java}
java.lang.Thread.State: RUNNABLE at org.apache.ignite.internal.processors.datastreamer.DataStreamerImpl$Buffer.flush(DataStreamerImpl.java:1706) at org.apache.ignite.internal.processors.datastreamer.DataStreamerImpl.doFlush(DataStreamerImpl.java:1170) at org.apache.ignite.internal.processors.datastreamer.DataStreamerImpl.closeEx(DataStreamerImpl.java:1365) at org.apache.ignite.internal.processors.datastreamer.DataStreamerImpl.closeEx(DataStreamerImpl.java:1323) at org.apache.ignite.internal.processors.datastreamer.DataStreamerImpl.close(DataStreamerImpl.java:1311) at org.apache.ignite.internal.processors.datastreamer.DataStreamerImpl.close(DataStreamerImpl.java:1415){code}
It becomes possible when a
IgniteSpiOperationTimeoutException
is being thrown from
org.apache.ignite.internal.managers.communication.GridIoManager.sendToGridTopic()
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