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https://issues.apache.org/jira/browse/SENTRY-337?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14064266#comment-14064266
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Sravya Tirukkovalur commented on SENTRY-337:
--------------------------------------------
Committed to master, thanks for your contribution [~guoquan]!
> When the parameter sentry.metastore.service.users isn't set or set empty,
> starting metastore will throw java.lang.NullPointerException
> --------------------------------------------------------------------------------------------------------------------------------------
>
> Key: SENTRY-337
> URL: https://issues.apache.org/jira/browse/SENTRY-337
> Project: Sentry
> Issue Type: Bug
> Affects Versions: 1.4.0
> Reporter: guoquanshen
> Assignee: guoquanshen
> Priority: Minor
> Fix For: 1.4.0
>
> Attachments: SENTRY-337.patch
>
>
> When Metastore service binding sentry and the parameter
> sentry.metastore.service.users isn't set or set empty in the sentry-site.xml,
> starting metastore will throw java.lang.NullPointerException.It throws
> following error:
> {code:title=MetastoreAuthzBinding.java|borderStyle=solid}
> MetaException(message:Failed to instantiate listener named:
> org.apache.sentry.binding.metastore.MetastoreAuthzBinding, reason:
> java.lang.NullPointerException)
> at
> org.apache.hadoop.hive.metastore.MetaStoreUtils.getMetaStoreListeners(MetaStoreUtils.java:1115)
> at
> org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.init(HiveMetaStore.java:345)
> at
> org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.<init>(HiveMetaStore.java:293)
> at
> org.apache.hadoop.hive.metastore.RetryingHMSHandler.<init>(RetryingHMSHandler.java:54)
> at
> org.apache.hadoop.hive.metastore.RetryingHMSHandler.getProxy(RetryingHMSHandler.java:59)
> at
> org.apache.hadoop.hive.metastore.HiveMetaStore.newHMSHandler(HiveMetaStore.java:4085)
> at
> org.apache.hadoop.hive.metastore.HiveMetaStore.startMetaStore(HiveMetaStore.java:4287)
> at
> org.apache.hadoop.hive.metastore.HiveMetaStore.main(HiveMetaStore.java:4221)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606)
> at org.apache.hadoop.util.RunJar.main(RunJar.java:212)
> Exception in thread "main" MetaException(message:Failed to instantiate
> listener named: org.apache.sentry.binding.metastore.MetastoreAuthzBinding,
> reason: java.lang.NullPointerException)
> at
> org.apache.hadoop.hive.metastore.MetaStoreUtils.getMetaStoreListeners(MetaStoreUtils.java:1115)
> at
> org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.init(HiveMetaStore.java:345)
> at
> org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.<init>(HiveMetaStore.java:293)
> at
> org.apache.hadoop.hive.metastore.RetryingHMSHandler.<init>(RetryingHMSHandler.java:54)
> at
> org.apache.hadoop.hive.metastore.RetryingHMSHandler.getProxy(RetryingHMSHandler.java:59)
> at
> org.apache.hadoop.hive.metastore.HiveMetaStore.newHMSHandler(HiveMetaStore.java:4085)
> at
> org.apache.hadoop.hive.metastore.HiveMetaStore.startMetaStore(HiveMetaStore.java:4287)
> at
> org.apache.hadoop.hive.metastore.HiveMetaStore.main(HiveMetaStore.java:4221)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606)
> at org.apache.hadoop.util.RunJar.main(RunJar.java:212)
> {code}
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