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From "Evgeny Ryabitskiy (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-1525) HTable.incrementColumnValue hangs()
Date Mon, 15 Jun 2009 19:42:07 GMT

    [ https://issues.apache.org/jira/browse/HBASE-1525?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12719733#action_12719733
] 

Evgeny Ryabitskiy commented on HBASE-1525:
------------------------------------------

ah.. yeah... good find!

> HTable.incrementColumnValue hangs() 
> ------------------------------------
>
>                 Key: HBASE-1525
>                 URL: https://issues.apache.org/jira/browse/HBASE-1525
>             Project: Hadoop HBase
>          Issue Type: Bug
>          Components: regionserver
>    Affects Versions: 0.20.0
>         Environment: ubuntu 9.04
> jdk 1.6.0.13
> hadoop 0.20.0
> hbase 0.20.0-dev [trunk]
>            Reporter: Irfan Mohammed
>         Attachments: 1525.patch, client_dump.out, hbase-irfan-master-damascus.out
>
>
> In the following code, 
>    @Test
>     public void usingIncrement() throws Exception 
>     {
>         long siteId = 1234;
>         long publisherId = 5678;
>         Date eventTime = DATE_INPUT_FORMAT.parse("2009-06-15 13:08:54");
>         
>         long[] metrics = new long[] { 10, 22, 32 };
>         
>         byte[] rowKey = Bytes.toBytes(siteId + "_" + ROW_KEY_FORMAT.format(eventTime));
>         byte[] family = Bytes.toBytes(FAMILY_PUBLISHER);
>         byte[] qualifier = Bytes.toBytes(publisherId);
>         
>         HTable table = getTable();
>         
>         for (int i1 = 0, n1 = metrics.length; n1 > 0; i1++, n1--) {
>             LOGGER.info("processing [{0}] ...", i1);
>             table.incrementColumnValue(rowKey, family, qualifier, metrics[i1]);
>             LOGGER.info("processing [{0}] completed", i1);
>         }
>         
>         table.close();
>         queryMetrics(table, siteId, publisherId, eventTime);
>     }
> The call table.incrementColumnValue hangs. Have to kill the hbase client and the master
processes to get around the problem.

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