[jira] [Created] (IGNITE-4142) Assertion in ClientImpl.updateMetrics()

["Valentin Kulichenko (JIRA)" <ji...@apache.org>]

Valentin Kulichenko created IGNITE-4142:
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             Summary: Assertion in ClientImpl.updateMetrics()
                 Key: IGNITE-4142
                 URL: https://issues.apache.org/jira/browse/IGNITE-4142
             Project: Ignite
          Issue Type: Bug
          Components: general
    Affects Versions: 1.7
            Reporter: Valentin Kulichenko
            Priority: Critical
             Fix For: 1.8


The problem was reported here: http://apache-ignite-users.70518.x6.nabble.com/AssertionError-td8321.html

It looks like the reason is that {{TcpDiscoveryHeartbeatMessage.setCacheMetrics()}} method does not put empty map in the {{cacheMetrics}} collection. As a result, it's possible that there cluster metrics for a node, but no metrics for this node - this leads to the assertion in {{ClientImpl.updateMetrics}} (see below). We should remove the {{if}} in {{TcpDiscoveryHeartbeatMessage.setCacheMetrics()}} or change {{ClientImpl.updateMetrics}} logic so that it does not fail in this case.

We should also try to reproduce in a unit test to make sure this the only problematic code here.

{noformat}
10:39:38,355 SEVERE [TcpDiscoverySpi] Runtime error caught during grid runnable execution: IgniteSpiThread [name=tcp-client-disco-msg-worker-#4%FooGrid%]: java.lang.AssertionError 
        at org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.updateMetrics(ClientImpl.java:2046) 
        at org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processHeartbeatMessage(ClientImpl.java:1926) 
        at org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processDiscoveryMessage(ClientImpl.java:1580) 
        at org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.body(ClientImpl.java:1499) 
        at org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62) 
{noformat}



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