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https://issues.apache.org/jira/browse/PHOENIX-886?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13973895#comment-13973895
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ASF GitHub Bot commented on PHOENIX-886:
----------------------------------------
Github user karel1980 commented on the pull request:
https://github.com/apache/incubator-phoenix/pull/29#issuecomment-40795390
Concerning the additional admin call: I agree;
Concerning the possibility of the exception still occurreing: it is a very
small window. It should work well enough in practice. It's handled anyway so it
won't cause any real harm if it does fail (just as it doesn't do any harm right
now. It's just a warning :)
I don't really want to suppress the warning permanently, I just want to
avoid the unsightly error from sqlline in order not to confuse users. The
'WARN' level in HBase is fine (IMHO) for other uses.
To have HBase log the exception conditionally we would have to pass a flag
from the HTable constructor all the way down to
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.prefetchRegionCache
(unless there's a more elegant solution I didn't think of)
> error when drop table
> ---------------------
>
> Key: PHOENIX-886
> URL: https://issues.apache.org/jira/browse/PHOENIX-886
> Project: Phoenix
> Issue Type: Bug
> Affects Versions: 3.0.0
> Reporter: yang ming
>
> The table can be dropped,but throw this warnning.
> 0: jdbc:phoenix:10.10.69.117> drop table YK.VIDEO_REGION;
> 14/03/21 17:26:49 WARN client.HConnectionManager$HConnectionImplementation:
> Encountered problems when prefetch META table:
> org.apache.hadoop.hbase.TableNotFoundException: Cannot find row in .META. for
> table: _IDX_YK.VIDEO_REGION, row=_IDX_YK.VIDEO_REGION,,99999999999999
> at
> org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:151)
> at
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.prefetchRegionCache(HConnectionManager.java:1059)
> at
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegionInMeta(HConnectionManager.java:1121)
> at
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:1001)
> at
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:958)
> at org.apache.hadoop.hbase.client.HTable.finishSetup(HTable.java:251)
> at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:243)
> at
> org.apache.phoenix.query.HTableFactory$HTableFactoryImpl.getTable(HTableFactory.java:51)
> at
> org.apache.phoenix.query.ConnectionQueryServicesImpl.getTable(ConnectionQueryServicesImpl.java:242)
> at
> org.apache.phoenix.query.ConnectionQueryServicesImpl.getTableDescriptor(ConnectionQueryServicesImpl.java:254)
> at
> org.apache.phoenix.util.MetaDataUtil.hasViewIndexTable(MetaDataUtil.java:269)
> at
> org.apache.phoenix.schema.MetaDataClient.dropTable(MetaDataClient.java:1303)
> at
> org.apache.phoenix.schema.MetaDataClient.dropTable(MetaDataClient.java:1244)
> at
> org.apache.phoenix.jdbc.PhoenixStatement$ExecutableDropTableStatement$1.execute(PhoenixStatement.java:519)
> at
> org.apache.phoenix.jdbc.PhoenixStatement.executeMutation(PhoenixStatement.java:226)
> at
> org.apache.phoenix.jdbc.PhoenixStatement.execute(PhoenixStatement.java:919)
> at sqlline.SqlLine$Commands.execute(SqlLine.java:3673)
> at sqlline.SqlLine$Commands.sql(SqlLine.java:3584)
> at sqlline.SqlLine.dispatch(SqlLine.java:821)
> at sqlline.SqlLine.begin(SqlLine.java:699)
> at sqlline.SqlLine.mainWithInputRedirection(SqlLine.java:441)
> at sqlline.SqlLine.main(SqlLine.java:424)
> No rows affected (3.418 seconds)
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