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From "Alexey Goncharuk (Jira)" <j...@apache.org>
Subject [jira] [Created] (IGNITE-13100) ClassCastException in cache group metrics on client nodes
Date Mon, 01 Jun 2020 09:57:00 GMT
Alexey Goncharuk created IGNITE-13100:
-----------------------------------------

             Summary: ClassCastException in cache group metrics on client nodes
                 Key: IGNITE-13100
                 URL: https://issues.apache.org/jira/browse/IGNITE-13100
             Project: Ignite
          Issue Type: Bug
            Reporter: Alexey Goncharuk


The following exception can be observed when reading cache group metrics on client nodes with
persistence-enabled config:
{code}
java.lang.ClassCastException: org.apache.ignite.internal.processors.cache.persistence.IgniteCacheDatabaseSharedManager
cannot be cast to org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager
	at org.apache.ignite.internal.processors.cache.CacheGroupMetricsImpl.database(CacheGroupMetricsImpl.java:506)
	at org.apache.ignite.internal.processors.cache.CacheGroupMetricsImpl.lambda$new$0(CacheGroupMetricsImpl.java:103)
	at org.apache.ignite.internal.util.lang.GridFunc.lambda$nonThrowableSupplier$3(GridFunc.java:3341)
	at org.apache.ignite.internal.processors.metric.impl.LongGauge.value(LongGauge.java:45)
	at org.apache.ignite.spi.metric.LongMetric.getAsString(LongMetric.java:29)
{code}

The reason is an incomplete check for persistence enabled in {{CacheGroupMetricsImpl}}: we
should also check for client nodes.



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