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https://issues.apache.org/jira/browse/HIVE-27240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17794158#comment-17794158
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Ayush Saxena commented on HIVE-27240:
-------------------------------------
+1 on the patch.
I have created a PR on your behalf for the patch, since it is a release blocker
for us. If I get a green build I will merge it
> NPE on Hive Hook Proto Log Writer
> ---------------------------------
>
> Key: HIVE-27240
> URL: https://issues.apache.org/jira/browse/HIVE-27240
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Affects Versions: 4.0.0-alpha-1, 4.0.0-alpha-2
> Reporter: Shubham Sharma
> Assignee: Shubham Sharma
> Priority: Critical
> Labels: pull-request-available
> Attachments: HIVE-27240.patch
>
>
> Post deployment of Hive 4.0.0-alpha-1 observed NPE error blocking proto
> logger to serialize json on HiveHookEventProtoPartialBuilder
> {code:java}
> 023-04-10T17:43:44,226 ERROR [Hive Hook Proto Log Writer 0]:
> hooks.HiveHookEventProtoPartialBuilder (:()) - Unexpected exception while
> serializing json.
> java.lang.NullPointerException: null
> at
> org.apache.hadoop.hive.ql.exec.ExplainTask.outputPlan(ExplainTask.java:986)
> ~[hive-exec-3.1.4.3.2.2.0-1.jar:3.1.4.3.2.2.0-1]
> at
> org.apache.hadoop.hive.ql.exec.ExplainTask.outputPlan(ExplainTask.java:908)
> ~[hive-exec-3.1.4.3.2.2.0-1.jar:3.1.4.3.2.2.0-1]
> at
> org.apache.hadoop.hive.ql.exec.ExplainTask.outputPlan(ExplainTask.java:1263)
> ~[hive-exec-3.1.4.3.2.2.0-1.jar:3.1.4.3.2.2.0-1]
> at
> org.apache.hadoop.hive.ql.exec.ExplainTask.outputStagePlans(ExplainTask.java:1408)
> ~[hive-exec-3.1.4.3.2.2.0-1.jar:3.1.4.3.2.2.0-1]
> at
> org.apache.hadoop.hive.ql.exec.ExplainTask.getJSONPlan(ExplainTask.java:367)
> ~[hive-exec-3.1.4.3.2.2.0-1.jar:3.1.4.3.2.2.0-1]
> at
> org.apache.hadoop.hive.ql.exec.ExplainTask.getJSONPlan(ExplainTask.java:268)
> ~[hive-exec-3.1.4.3.2.2.0-1.jar:3.1.4.3.2.2.0-1]
> at
> org.apache.hadoop.hive.ql.hooks.HiveHookEventProtoPartialBuilder.getExplainJSON(HiveHookEventProtoPartialBuilder.java:84)
> ~[hive-exec-3.1.4.3.2.2.0-1.jar:3.1.4.3.2.2.0-1]
> at
> org.apache.hadoop.hive.ql.hooks.HiveHookEventProtoPartialBuilder.addQueryObj(HiveHookEventProtoPartialBuilder.java:75)
> ~[hive-exec-3.1.4.3.2.2.0-1.jar:3.1.4.3.2.2.0-1]
> at
> org.apache.hadoop.hive.ql.hooks.HiveHookEventProtoPartialBuilder.build(HiveHookEventProtoPartialBuilder.java:55)
> ~[hive-exec-3.1.4.3.2.2.0-1.jar:3.1.4.3.2.2.0-1]
> at
> org.apache.hadoop.hive.ql.hooks.HiveProtoLoggingHook$EventLogger.writeEvent(HiveProtoLoggingHook.java:312)
> ~[hive-exec-3.1.4.3.2.2.0-1.jar:3.1.4.3.2.2.0-1]
> at
> org.apache.hadoop.hive.ql.hooks.HiveProtoLoggingHook$EventLogger.lambda$handle$1(HiveProtoLoggingHook.java:274)
> ~[hive-exec-3.1.4.3.2.2.0-1.jar:3.1.4.3.2.2.0-1]
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> ~[?:1.8.0_362]
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> ~[?:1.8.0_362]
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
> ~[?:1.8.0_362]
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
> ~[?:1.8.0_362]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> ~[?:1.8.0_362]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> ~[?:1.8.0_362]
> at java.lang.Thread.run(Thread.java:750) [?:1.8.0_362] {code}
> ExplainTask isn't getting initialised as earlier leading to querystate as
> null value, attaching earlier init code from HiveProtoLoggingHook
> {code:java}
> explain.initialize(hookContext.getQueryState(), plan, null, null); {code}
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