Ilya Kasnacheev created IGNITE-7476:
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Summary: Server node will join with failure gathering metrics
Key: IGNITE-7476
URL: https://issues.apache.org/jira/browse/IGNITE-7476
Project: Ignite
Issue Type: Bug
Reporter: Ilya Kasnacheev
Sometimes server node will fail with the following trace:
{code:java}
SEVERE: TcpDiscoverSpi's message worker thread failed abnormally. Stopping the
node in order to prevent cluster wide instability.
java.lang.NullPointerException
at
org.apache.ignite.internal.managers.discovery.GridDiscoveryManager$7.cacheMetrics(GridDiscoveryManager.java:1149)
at
org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.processMetricsUpdateMessage(ServerImpl.java:5022)
at
org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.processMessage(ServerImpl.java:2690)
at
org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.processMessage(ServerImpl.java:2491)
at
org.apache.ignite.spi.discovery.tcp.ServerImpl$MessageWorkerAdapter.body(ServerImpl.java:6675)
at
org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.body(ServerImpl.java:2574)
at org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62){code}
Two problems here:
* Uncaught exception in cacheMetrics() leads to unconditional failure of node,
because it happens to be in discovery thread. Should probably wrap all
non-trivial code include try-catch.
* Lack of proper locking when destroying cache (see also IGNITE-6423 and
IGNITE-7165)
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