You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@falcon.apache.org by "Shwetha G S (JIRA)" <ji...@apache.org> on 2014/08/13 08:50:12 UTC
[jira] [Commented] (FALCON-596) Enhancement required in Hcat feed
replication
[ https://issues.apache.org/jira/browse/FALCON-596?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14095218#comment-14095218 ]
Shwetha G S commented on FALCON-596:
------------------------------------
{code}
- partitions.put(keyVal[0], keyVal[1]);
+ partitions.put(keyVal[0].toLowerCase(), keyVal[1].toLowerCase());
{code}
Are you sure the value is also case insensitive?
> Enhancement required in Hcat feed replication
> ---------------------------------------------
>
> Key: FALCON-596
> URL: https://issues.apache.org/jira/browse/FALCON-596
> Project: Falcon
> Issue Type: Improvement
> Components: replication
> Reporter: Suhas Vasu
> Assignee: Suhas Vasu
> Priority: Minor
> Attachments: FALCON-596.patch
>
>
> Hcatalog always creates partitions in lower case, hence falcon should always look for partitions by converting them to lower case
> Ex:
> (source table)
> CREATE EXTERNAL TABLE in_table (word STRING, cnt INT) PARTITIONED BY (Year STRING, Month STRING, Date STRING, Hour STRING, Minute STRING) STORED AS TEXTFILE LOCATION '/user/suhas/hcat-data/in/';
> (target table)
> CREATE EXTERNAL TABLE replicated_in_table (word STRING, cnt INT) PARTITIONED BY (Year STRING, Month STRING, Date STRING, Hour STRING, Minute STRING) STORED AS TEXTFILE LOCATION '/user/suhas/hcat-data/replicated_in/';
> The partitions in Hcat will be:
> year=2014/month=08/date=05/hour=00/minute=00
> year=2014/month=08/date=05/hour=00/minute=01
> year=2014/month=08/date=05/hour=00/minute=02
> year=2014/month=08/date=05/hour=00/minute=03
> year=2014/month=08/date=05/hour=00/minute=04
> In such case falcon replication is failing with:
> {noformat}
> org.apache.oozie.action.hadoop.JavaMainException: org.apache.falcon.FalconException: Exception fetching partition:org.apache.hcatalog.common.HCatException : 9001 : Exception occurred while processing HCat request : Invalid partition-key specified: year
> at org.apache.oozie.action.hadoop.JavaMain.run(JavaMain.java:58)
> at org.apache.oozie.action.hadoop.LauncherMain.run(LauncherMain.java:39)
> at org.apache.oozie.action.hadoop.JavaMain.main(JavaMain.java:36)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606)
> at org.apache.oozie.action.hadoop.LauncherMapper.map(LauncherMapper.java:226)
> at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50)
> at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:417)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:332)
> at org.apache.hadoop.mapred.Child$4.run(Child.java:268)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:415)
> at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1438)
> at org.apache.hadoop.mapred.Child.main(Child.java:262)
> Caused by: org.apache.falcon.FalconException: Exception fetching partition:org.apache.hcatalog.common.HCatException : 9001 : Exception occurred while processing HCat request : Invalid partition-key specified: year
> at org.apache.falcon.catalog.HiveCatalogService.getPartition(HiveCatalogService.java:235)
> at org.apache.falcon.latedata.LateDataHandler.getTablePartitionCreateTimeMetric(LateDataHandler.java:243)
> at org.apache.falcon.latedata.LateDataHandler.computeStorageMetric(LateDataHandler.java:183)
> at org.apache.falcon.latedata.LateDataHandler.computeMetrics(LateDataHandler.java:124)
> at org.apache.falcon.latedata.LateDataHandler.run(LateDataHandler.java:101)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
> at org.apache.falcon.latedata.LateDataHandler.main(LateDataHandler.java:60)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606)
> at org.apache.oozie.action.hadoop.JavaMain.run(JavaMain.java:55)
> ... 15 more
> {noformat}
--
This message was sent by Atlassian JIRA
(v6.2#6252)