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https://issues.apache.org/jira/browse/HBASE-13394?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14510510#comment-14510510
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Ashish Singhi commented on HBASE-13394:
---------------------------------------
[~anoop.hbase], Sorry missed the comment before.
bq. So if this step is passed and we come to cache and entry is present there,
(because of issues like this) we have to just clear of that?
I feel rather than removing the entry from cache, we can reject the request
with proper error message saying that a request to create table with same name
is already in progress. So we will need to handle two cases here when the table
really exists and when table create request is in progress to reject the
request with proper error message.
What you suggest ?
> 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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