[ 
https://issues.apache.org/jira/browse/PHOENIX-1929?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14515038#comment-14515038
 ] 

Samarth Jain commented on PHOENIX-1929:
---------------------------------------

[~maryannxue] - this NPE 

{code}
Tests run: 102, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 125.542 sec 
<<< FAILURE! - in org.apache.phoenix.end2end.HashJoinIT
testMultiLeftJoin[1](org.apache.phoenix.end2end.HashJoinIT) Time elapsed: 0.91 
sec <<< ERROR!
java.lang.NullPointerException: null
at 
org.apache.phoenix.cache.ServerCacheClient.removeServerCache(ServerCacheClient.java:285)
at 
org.apache.phoenix.cache.ServerCacheClient.access$000(ServerCacheClient.java:80)
at 
org.apache.phoenix.cache.ServerCacheClient$ServerCache.close(ServerCacheClient.java:140)
at org.apache.phoenix.util.SQLCloseables.closeAllQuietly(SQLCloseables.java:53)
at org.apache.phoenix.util.SQLCloseables.closeAll(SQLCloseables.java:43)
at org.apache.phoenix.execute.BaseQueryPlan$1.close(BaseQueryPlan.java:229)
at org.apache.phoenix.jdbc.PhoenixResultSet.close(PhoenixResultSet.java:135)
at org.apache.phoenix.util.SQLCloseables.closeAllQuietly(SQLCloseables.java:53)
at org.apache.phoenix.util.SQLCloseables.closeAll(SQLCloseables.java:43)
at org.apache.phoenix.jdbc.PhoenixStatement.close(PhoenixStatement.java:953)
at org.apache.phoenix.util.SQLCloseables.closeAllQuietly(SQLCloseables.java:53)
at org.apache.phoenix.util.SQLCloseables.closeAll(SQLCloseables.java:43)
at 
org.apache.phoenix.jdbc.PhoenixConnection.closeStatements(PhoenixConnection.java:381)
at org.apache.phoenix.jdbc.PhoenixConnection.close(PhoenixConnection.java:395)
at org.apache.phoenix.end2end.HashJoinIT.testMultiLeftJoin(HashJoinIT.java:2181)
{code}

looks similar to this one : https://issues.apache.org/jira/browse/PHOENIX-1562. 
Do you think the patch provided by [~ayingshu] might be hiding some underlying 
problem? 

> Unit Test Failures with NPE, etc.
> ---------------------------------
>
>                 Key: PHOENIX-1929
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-1929
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: Alicia Ying Shu
>            Assignee: Alicia Ying Shu
>         Attachments: Phoenix-1929.patch
>
>
> Tests run: 102, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 125.542 sec 
> <<< FAILURE! - in org.apache.phoenix.end2end.HashJoinIT
> testMultiLeftJoin[1](org.apache.phoenix.end2end.HashJoinIT)  Time elapsed: 
> 0.91 sec  <<< ERROR!
> java.lang.NullPointerException: null
>       at 
> org.apache.phoenix.cache.ServerCacheClient.removeServerCache(ServerCacheClient.java:285)
>       at 
> org.apache.phoenix.cache.ServerCacheClient.access$000(ServerCacheClient.java:80)
>       at 
> org.apache.phoenix.cache.ServerCacheClient$ServerCache.close(ServerCacheClient.java:140)
>       at 
> org.apache.phoenix.util.SQLCloseables.closeAllQuietly(SQLCloseables.java:53)
>       at org.apache.phoenix.util.SQLCloseables.closeAll(SQLCloseables.java:43)
>       at 
> org.apache.phoenix.execute.BaseQueryPlan$1.close(BaseQueryPlan.java:229)
>       at 
> org.apache.phoenix.jdbc.PhoenixResultSet.close(PhoenixResultSet.java:135)
>       at 
> org.apache.phoenix.util.SQLCloseables.closeAllQuietly(SQLCloseables.java:53)
>       at org.apache.phoenix.util.SQLCloseables.closeAll(SQLCloseables.java:43)
>       at 
> org.apache.phoenix.jdbc.PhoenixStatement.close(PhoenixStatement.java:953)
>       at 
> org.apache.phoenix.util.SQLCloseables.closeAllQuietly(SQLCloseables.java:53)
>       at org.apache.phoenix.util.SQLCloseables.closeAll(SQLCloseables.java:43)
>       at 
> org.apache.phoenix.jdbc.PhoenixConnection.closeStatements(PhoenixConnection.java:381)
>       at 
> org.apache.phoenix.jdbc.PhoenixConnection.close(PhoenixConnection.java:395)
>       at 
> org.apache.phoenix.end2end.HashJoinIT.testMultiLeftJoin(HashJoinIT.java:2181)
> Tests run: 16, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 99.733 sec 
> <<< FAILURE! - in org.apache.phoenix.end2end.index.LocalIndexIT
> testDropLocalIndexShouldDeleteDataFromLocalIndexTable(org.apache.phoenix.end2end.index.LocalIndexIT)
>   Time elapsed: 5.985 sec  <<< ERROR!
> java.lang.RuntimeException: java.util.concurrent.RejectedExecutionException: 
> Task 
> org.apache.hadoop.hbase.client.ResultBoundedCompletionService$QueueingFuture@1d9dd786
>  rejected from java.util.concurrent.ThreadPoolExecutor@65b0ad9a[Running, pool 
> size = 2, active threads = 2, queued tasks = 0, completed tasks = 2]
>       at 
> java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2048)
>       at 
> java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:821)
>       at 
> java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1372)
>       at 
> org.apache.hadoop.hbase.client.ResultBoundedCompletionService.submit(ResultBoundedCompletionService.java:144)
>       at 
> org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.addCallsForCurrentReplica(ScannerCallableWithReplicas.java:248)
>       at 
> org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:145)
>       at 
> org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:55)
>       at 
> org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithoutRetries(RpcRetryingCaller.java:197)
>       at 
> org.apache.hadoop.hbase.client.ClientScanner.call(ClientScanner.java:288)
>       at 
> org.apache.hadoop.hbase.client.ClientScanner.nextScanner(ClientScanner.java:268)
>       at 
> org.apache.hadoop.hbase.client.ClientScanner.initializeScannerInConstruction(ClientScanner.java:140)
>       at 
> org.apache.hadoop.hbase.client.ClientScanner.<init>(ClientScanner.java:135)
>       at org.apache.hadoop.hbase.client.HTable.getScanner(HTable.java:802)
>       at 
> org.apache.phoenix.end2end.index.LocalIndexIT.testDropLocalIndexShouldDeleteDataFromLocalIndexTable(LocalIndexIT.java:507)



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