[jira] [Created] (IGNITE-1239) Cache partition iterator throws exception when concurrent rebalancing is running

[Anton Vinogradov (Jira)]

Alexey Goncharuk created IGNITE-1239:
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             Summary: Cache partition iterator throws exception when concurrent rebalancing is running
                 Key: IGNITE-1239
                 URL: https://issues.apache.org/jira/browse/IGNITE-1239
             Project: Ignite
          Issue Type: Bug
          Components: cache
            Reporter: Alexey Goncharuk


I observed this exception when IgniteRDD was iterating over partition and two new nodes have joined:
{code}
Caused by: class org.apache.ignite.IgniteCheckedException: Query execution failed: GridCacheQueryBean [qry=GridCacheQueryAdapter [type=SCAN, clsName=null, clause=null, filter=org.apache.ignite.internal.processors.cache.IgniteCacheProxy$1@6490c94c, part=138, incMeta=false, metrics=GridCacheQueryMetricsAdapter [minTime=10, maxTime=10, avgTime=10.0, execs=1, fails=1, executed=true], pageSize=1024, timeout=0, keepAll=true, incBackups=false, dedup=false, prj=null, keepPortable=false, subjId=9cdc9751-c6ec-43eb-968a-e941f2a1a8cd, taskHash=0], rdc=null, trans=null]
        at org.apache.ignite.internal.processors.cache.query.GridCacheQueryFutureAdapter.checkError(GridCacheQueryFutureAdapter.java:245)
        at org.apache.ignite.internal.processors.cache.query.GridCacheQueryFutureAdapter.internalIterator(GridCacheQueryFutureAdapter.java:303)
        at org.apache.ignite.internal.processors.cache.query.GridCacheQueryFutureAdapter.next(GridCacheQueryFutureAdapter.java:156)
        ... 17 more
Caused by: class org.apache.ignite.IgniteCheckedException: Failed to execute query on node [query=GridCacheQueryBean [qry=GridCacheQueryAdapter [type=SCAN, clsName=null, clause=null, filter=org.apache.ignite.internal.processors.cache.IgniteCacheProxy$1@6490c94c, part=138, incMeta=false, metrics=GridCacheQueryMetricsAdapter [minTime=0, maxTime=0, avgTime=0.0, execs=0, fails=0, executed=false], pageSize=1024, timeout=0, keepAll=true, incBackups=false, dedup=false, prj=null, keepPortable=false, subjId=9cdc9751-c6ec-43eb-968a-e941f2a1a8cd, taskHash=0], rdc=null, trans=null], nodeId=963d0e35-7805-4b6d-8d64-22cce84e35f2]
        at org.apache.ignite.internal.processors.cache.query.GridCacheQueryFutureAdapter.onPage(GridCacheQueryFutureAdapter.java:370)
        at org.apache.ignite.internal.processors.cache.query.GridCacheDistributedQueryManager.processQueryResponse(GridCacheDistributedQueryManager.java:377)
        at org.apache.ignite.internal.processors.cache.query.GridCacheDistributedQueryManager.access$000(GridCacheDistributedQueryManager.java:44)
        at org.apache.ignite.internal.processors.cache.query.GridCacheDistributedQueryManager$1.apply(GridCacheDistributedQueryManager.java:74)
        at org.apache.ignite.internal.processors.cache.query.GridCacheDistributedQueryManager$1.apply(GridCacheDistributedQueryManager.java:72)
        at org.apache.ignite.internal.processors.cache.GridCacheIoManager.processMessage(GridCacheIoManager.java:534)
        at org.apache.ignite.internal.processors.cache.GridCacheIoManager.onMessage0(GridCacheIoManager.java:240)
        at org.apache.ignite.internal.processors.cache.GridCacheIoManager.access$700(GridCacheIoManager.java:48)
        at org.apache.ignite.internal.processors.cache.GridCacheIoManager$OrderedMessageListener.onMessage(GridCacheIoManager.java:1026)
        at org.apache.ignite.internal.managers.communication.GridIoManager$GridCommunicationMessageSet.unwind(GridIoManager.java:2256)
        at org.apache.ignite.internal.managers.communication.GridIoManager.unwindMessageSet(GridIoManager.java:946)
        at org.apache.ignite.internal.managers.communication.GridIoManager.access$1700(GridIoManager.java:60)
        at org.apache.ignite.internal.managers.communication.GridIoManager$6.run(GridIoManager.java:915)
        ... 3 more
Caused by: class org.apache.ignite.IgniteCheckedException: Partition can't be reserved
        at org.apache.ignite.internal.util.IgniteUtils.cast(IgniteUtils.java:6808)
{code}

The issue is that query request was sent on a backup node and by the time request has arrived, the partition was already evicted, which resulted in "Partition cannot be reserved" exception. We should automatically retry if this exception is encountered.

I believe we have logic that retries, but it looks like there is a bug in that logic.



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