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https://issues.apache.org/jira/browse/HBASE-10809?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13943914#comment-13943914
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Jeffrey Zhong edited comment on HBASE-10809 at 3/22/14 5:31 AM:
----------------------------------------------------------------
{quote}
Why remove the retryLongerMultiplier? You don't say.
{quote}
Good point. Actually I can't remove it because it's also used to wait for meta
is updated.
was (Author: jeffreyz):
{quote}
Why remove the retryLongerMultiplier? You don't say.
{quote}
Because the code later in the HBaseAdmin#deleteTable() will not allow more than
numRetries retries. Basically the this.retryLongerMultiplier isn't used anyway.
In addition, if it's used there will be 310 retries. Since it's a sync all, no
one will gonna wait such long time for I removed it for good.
{code}
} catch (IOException ex) {
if(tries == numRetries - 1) { // no more tries left
if (ex instanceof RemoteException) {
throw ((RemoteException) ex).unwrapRemoteException();
} else {
throw ex;
}
}
}
{code}
> HBaseAdmin#deleteTable fails when META region happen to move around same time
> -----------------------------------------------------------------------------
>
> Key: HBASE-10809
> URL: https://issues.apache.org/jira/browse/HBASE-10809
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.98.0, 0.96.1, 0.99.0
> Reporter: Jeffrey Zhong
> Assignee: Jeffrey Zhong
> Attachments: hbase-10809-v1.patch, hbase-10809.patch,
> hbase-10809.patch
>
>
> The issue is that in the retry loop, we never refetch the latest meta
> location. So if meta starts to move right after the function get Meta server
> location, the delete table eventually may fail with
> {code}org.apache.hadoop.hbase.NotServingRegionException: Region hbase:meta,,1
> is not online{code}
> Below is the stack trace:
> {code}
> 2014-01-31 04:02:41,943|beaver.machine|INFO|Caused by:
> org.apache.hadoop.hbase.ipc.RemoteWithExtrasException(org.apache.hadoop.hbase.NotServingRegionException):
> org.apache.hadoop.hbase.NotServingRegionException: Region hbase:meta,,1 is
> not online
> 2014-01-31 04:02:41,943|beaver.machine|INFO|at
> org.apache.hadoop.hbase.regionserver.HRegionServer.getRegionByEncodedName(HRegionServer.java:2585)
> 2014-01-31 04:02:41,943|beaver.machine|INFO|at
> org.apache.hadoop.hbase.regionserver.HRegionServer.getRegion(HRegionServer.java:3952)
> 2014-01-31 04:02:41,944|beaver.machine|INFO|at
> org.apache.hadoop.hbase.regionserver.HRegionServer.scan(HRegionServer.java:2977)
> 2014-01-31 04:02:41,944|beaver.machine|INFO|at
> org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:26929)
> 2014-01-31 04:02:41,944|beaver.machine|INFO|at
> org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2175)
> 2014-01-31 04:02:41,944|beaver.machine|INFO|at
> org.apache.hadoop.hbase.ipc.RpcServer$Handler.run(RpcServer.java:1879)
> 2014-01-31 04:02:41,945|beaver.machine|INFO|
> 2014-01-31 04:02:41,945|beaver.machine|INFO|at
> org.apache.hadoop.hbase.ipc.RpcClient.call(RpcClient.java:1449)
> 2014-01-31 04:02:41,945|beaver.machine|INFO|at
> org.apache.hadoop.hbase.ipc.RpcClient.callBlockingMethod(RpcClient.java:1653)
> 2014-01-31 04:02:41,946|beaver.machine|INFO|at
> org.apache.hadoop.hbase.ipc.RpcClient$BlockingRpcChannelImplementation.callBlockingMethod(RpcClient.java:1711)
> 2014-01-31 04:02:41,946|beaver.machine|INFO|at
> org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$BlockingStub.scan(ClientProtos.java:27332)
> 2014-01-31 04:02:41,946|beaver.machine|INFO|at
> org.apache.hadoop.hbase.client.HBaseAdmin.deleteTable(HBaseAdmin.java:648)
> {code}
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