hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "stack (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-5351) hbase completebulkload to a new table fails in a race
Date Fri, 24 Feb 2012 22:31:50 GMT

     [ https://issues.apache.org/jira/browse/HBASE-5351?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stack updated HBASE-5351:
-------------------------

    Attachment: HBASE-5351-v2.patch

Uploading same patch so can redo submit patch to hadoopqa
                
> hbase completebulkload to a new table fails in a race
> -----------------------------------------------------
>
>                 Key: HBASE-5351
>                 URL: https://issues.apache.org/jira/browse/HBASE-5351
>             Project: HBase
>          Issue Type: Bug
>          Components: mapreduce
>    Affects Versions: 0.92.0, 0.94.0
>            Reporter: Gregory Chanan
>            Assignee: Gregory Chanan
>         Attachments: HBASE-5351-v1.patch, HBASE-5351-v2.patch, HBASE-5351-v2.patch, HBASE-5351.patch
>
>
> I have a test that tests vanilla use of importtsv with importtsv.bulk.output option followed
by completebulkload to a new table.
> This sometimes fails as follows:
> 11/12/19 15:02:39 WARN client.HConnectionManager$HConnectionImplementation: Encountered
problems when prefetch META table:
> org.apache.hadoop.hbase.TableNotFoundException: Cannot find row in .META. for table:
ml_items_copy, row=ml_items_copy,,99999999999999
> at org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:157)
> at org.apache.hadoop.hbase.client.MetaScanner.access$000(MetaScanner.java:52)
> at org.apache.hadoop.hbase.client.MetaScanner$1.connect(MetaScanner.java:130)
> at org.apache.hadoop.hbase.client.MetaScanner$1.connect(MetaScanner.java:127)
> at org.apache.hadoop.hbase.client.HConnectionManager.execute(HConnectionManager.java:359)
> at org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:127)
> at org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:103)
> at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.prefetchRegionCache(HConnectionManager.java:875)
> at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegionInMeta(HConnectionManager.java:929)
> at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:817)
> at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:781)
> at org.apache.hadoop.hbase.client.HTable.finishSetup(HTable.java:247)
> at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:211)
> at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:171)
> at org.apache.hadoop.hbase.mapreduce.LoadIncrementalHFiles.createTable(LoadIncrementalHFiles.java:673)
> at org.apache.hadoop.hbase.mapreduce.LoadIncrementalHFiles.run(LoadIncrementalHFiles.java:697)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:69)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:83)
> at org.apache.hadoop.hbase.mapreduce.LoadIncrementalHFiles.main(LoadIncrementalHFiles.java:707)
> The race appears to be calling HbAdmin.createTableAsync(htd, keys) and then creating
an HTable object before that call has actually completed.
> The following change to /src/main/java/org/apache/hadoop/hbase/mapreduce/LoadIncrementalHFiles.java
appears to fix the problem, but I have not been able to reproduce the race reliably, in order
to write a test.
> {code}
> -    HTable table = new HTable(this.cfg, tableName);
> -
> -    HConnection conn = table.getConnection();
>      int ctr = 0;
> -    while (!conn.isTableAvailable(table.getTableName()) && (ctr<TABLE_CREATE_MA
> +    while (!this.hbAdmin.isTableAvailable(tableName) && (ctr<TABLE_CREATE_MAX_R
> {code}

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message