[SENTRY-337] When the parameter sentry.metastore.service.users isn't set or set empty, starting metastore will throw java.lang.NullPointerException

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.4.0
• Fix Version/s: 1.4.0
• Assignee: shenguoquan
• Reporter: shenguoquan
• Created: 16/Jul/14 05:21
• Updated: 17/Jul/14 18:16
• Resolved: 16/Jul/14 22:36

Description

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:

MetastoreAuthzBinding.java

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)