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https://issues.apache.org/jira/browse/HIVE-23753?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17155636#comment-17155636
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Rajkumar Singh commented on HIVE-23753:
---------------------------------------
https://github.com/apache/hive/pull/1171
> Make LLAP Secretmanager token path configurable
> -----------------------------------------------
>
> Key: HIVE-23753
> URL: https://issues.apache.org/jira/browse/HIVE-23753
> Project: Hive
> Issue Type: Bug
> Components: llap
> Affects Versions: 4.0.0
> Reporter: Rajkumar Singh
> Assignee: Rajkumar Singh
> Priority: Major
>
> In a very Busy LLAP cluster if for some reason the Tokens under
> zkdtsm_hive_llap0 zk path are not cleaned then LLAP Daemon startup takes a
> very long time to startup, this may lead to service outage if LLAP daemons
> are not started and the number of retries while checking LLAP app status
> exceeds. upon looking the jstack of llap daemon it seems to traverse the
> zkdtsm_hive_llap0 zk path before starting the secret manager.
> {code:java}
> java.lang.Thread.State: WAITING (on object monitor)
> at java.lang.Object.wait(Native Method)
> at java.lang.Object.wait(Object.java:502)
> at org.apache.zookeeper.ClientCnxn.submitRequest(ClientCnxn.java:1386)
> - locked <0x00007fef36cdd338> (a org.apache.zookeeper.ClientCnxn$Packet)
> at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1153)
> at
> org.apache.curator.framework.imps.GetDataBuilderImpl$4.call(GetDataBuilderImpl.java:302)
> at
> org.apache.curator.framework.imps.GetDataBuilderImpl$4.call(GetDataBuilderImpl.java:291)
> at org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:107)
> at
> org.apache.curator.framework.imps.GetDataBuilderImpl.pathInForeground(GetDataBuilderImpl.java:288)
> at
> org.apache.curator.framework.imps.GetDataBuilderImpl.forPath(GetDataBuilderImpl.java:279)
> at
> org.apache.curator.framework.imps.GetDataBuilderImpl$2.forPath(GetDataBuilderImpl.java:142)
> at
> org.apache.curator.framework.imps.GetDataBuilderImpl$2.forPath(GetDataBuilderImpl.java:138)
> at
> org.apache.curator.framework.recipes.cache.PathChildrenCache.internalRebuildNode(PathChildrenCache.java:591)
> at
> org.apache.curator.framework.recipes.cache.PathChildrenCache.rebuild(PathChildrenCache.java:331)
> at
> org.apache.curator.framework.recipes.cache.PathChildrenCache.start(PathChildrenCache.java:300)
> at
> org.apache.hadoop.security.token.delegation.ZKDelegationTokenSecretManager.startThreads(ZKDelegationTokenSecretManager.java:370)
> at
> org.apache.hadoop.hive.llap.security.SecretManager.startThreads(SecretManager.java:82)
> at
> org.apache.hadoop.hive.llap.security.SecretManager$1.run(SecretManager.java:223)
> at
> org.apache.hadoop.hive.llap.security.SecretManager$1.run(SecretManager.java:218)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:360)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1846)
> at
> org.apache.hadoop.hive.llap.security.SecretManager.createSecretManager(SecretManager.java:218)
> at
> org.apache.hadoop.hive.llap.security.SecretManager.createSecretManager(SecretManager.java:212)
> at
> org.apache.hadoop.hive.llap.daemon.impl.LlapDaemon.<init>(LlapDaemon.java:279)
> {code}
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