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https://issues.apache.org/jira/browse/KUDU-1471?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15305421#comment-15305421
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Ted Malaska commented on KUDU-1471:
-----------------------------------
After reading the code. I can't see how this exception would happen in the
current code base. It may be that this issue was addressed with another Jira.
If you add the version number of Kudu in which you saw this exception that
would be helpful
> NPE in AsyncKuduClient from Spark
> ---------------------------------
>
> Key: KUDU-1471
> URL: https://issues.apache.org/jira/browse/KUDU-1471
> Project: Kudu
> Issue Type: Bug
> Components: client, spark
> Affects Versions: 0.9.0
> Reporter: Todd Lipcon
>
> I'm testing out the Spark support on a ~70 node cluster (240 executors). I
> hit this NPE:
> {code}
> scala> kuduDataFrame.count()
> 16/05/26 18:36:31 WARN scheduler.TaskSetManager: Lost task 220.0 in stage 4.0
> (TID 1417, e1313.halxg.cloudera.com): java.lang.NullPointerException
> at
> org.kududb.client.AsyncKuduClient$RemoteTablet.addTabletClient(AsyncKuduClient.java:1929)
> at
> org.kududb.client.AsyncKuduClient$RemoteTablet.refreshTabletClients(AsyncKuduClient.java:1897)
> at
> org.kududb.client.AsyncKuduClient.discoverTablets(AsyncKuduClient.java:1309)
> at
> org.kududb.client.AsyncKuduClient$MasterLookupCB.call(AsyncKuduClient.java:1232)
> at
> org.kududb.client.AsyncKuduClient$MasterLookupCB.call(AsyncKuduClient.java:1224)
> at com.stumbleupon.async.Deferred.doCall(Deferred.java:1278)
> at com.stumbleupon.async.Deferred.runCallbacks(Deferred.java:1257)
> at com.stumbleupon.async.Deferred.callback(Deferred.java:1005)
> at org.kududb.client.KuduRpc.handleCallback(KuduRpc.java:194)
> at org.kududb.client.KuduRpc.callback(KuduRpc.java:207)
> at org.kududb.client.TabletClient.decode(TabletClient.java:477)
> at org.kududb.client.TabletClient.decode(TabletClient.java:83)
> {code}
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