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Date: Fri, 24 Apr 2015 08:22:38 +0000 (UTC)
From: "Anoop Sam John (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
Message-ID: <JIRA.12787928.1428044107000.15888.1429863758463@Atlassian.JIRA>
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Subject: [jira] [Commented] (HBASE-13394) Failed to recreate a table when
 quota is enabled
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    [ https://issues.apache.org/jira/browse/HBASE-13394?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14510637#comment-14510637 ] 

Anoop Sam John commented on HBASE-13394:
----------------------------------------

May be first of all we can see how/whether the new proc V2 way of table creation helps us. 
My Q is this Ashish
Here you are catching issues in a pre hook and some check points and remove the entry from cache.  But the table is still not created. It can so happen that the async table creation op can fail and we fail the table create op at user's console. Then the user try to do it once more. But it will never be successful ad the quota cache says table already exists.   So how we can solve that also?

> Failed to recreate a table when quota is enabled
> ------------------------------------------------
>
>                 Key: HBASE-13394
>                 URL: https://issues.apache.org/jira/browse/HBASE-13394
>             Project: HBase
>          Issue Type: Bug
>          Components: security
>    Affects Versions: 2.0.0, 1.1.0
>            Reporter: Y. SREENIVASULU REDDY
>            Assignee: Ashish Singhi
>              Labels: quota
>             Fix For: 2.0.0, 1.1.0
>
>         Attachments: HBASE-13394-v1.patch, HBASE-13394.patch
>
>
> Steps to reproduce.
> Enable quota by setting {{hbase.quota.enabled}} to true
> Create a table say with name 't1', make sure the creation fails after adding  this table entry into namespace quota cache.
> Now correct the failure and recreate the table 't1'. It fails with below exception.
> {noformat}
> 2015-04-02 14:23:53,729 | ERROR | FifoRpcScheduler.handler1-thread-23 | Unexpected throwable object  | org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2154)
> java.lang.IllegalStateException: Table already in the cache t1
>         at org.apache.hadoop.hbase.namespace.NamespaceTableAndRegionInfo.addTable(NamespaceTableAndRegionInfo.java:97)
>         at org.apache.hadoop.hbase.namespace.NamespaceStateManager.addTable(NamespaceStateManager.java:171)
>         at org.apache.hadoop.hbase.namespace.NamespaceStateManager.checkAndUpdateNamespaceTableCount(NamespaceStateManager.java:147)
>         at org.apache.hadoop.hbase.namespace.NamespaceAuditor.checkQuotaToCreateTable(NamespaceAuditor.java:76)
>         at org.apache.hadoop.hbase.quotas.MasterQuotaManager.checkNamespaceTableAndRegionQuota(MasterQuotaManager.java:344)
>         at org.apache.hadoop.hbase.master.HMaster.createTable(HMaster.java:1781)
>         at org.apache.hadoop.hbase.master.HMaster.createTable(HMaster.java:1818)
>         at org.apache.hadoop.hbase.protobuf.generated.MasterProtos$MasterService$2.callBlockingMethod(MasterProtos.java:42273)
>         at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2116)
>         at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:108)
>         at org.apache.hadoop.hbase.ipc.FifoRpcScheduler$1.run(FifoRpcScheduler.java:74)
>         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
>         at java.util.concurrent.FutureTask.run(FutureTask.java:262)
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>         at java.lang.Thread.run(Thread.java:745)
> {noformat}
> P.S: Line numbers may not be in sync.


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