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Posted to dev@pig.apache.org by "Ying He (JIRA)" <ji...@apache.org> on 2010/02/17 00:47:28 UTC
[jira] Created: (PIG-1241) Accumulator is turned on when a map is
used with a non-accumulative UDF
Accumulator is turned on when a map is used with a non-accumulative UDF
-----------------------------------------------------------------------
Key: PIG-1241
URL: https://issues.apache.org/jira/browse/PIG-1241
Project: Pig
Issue Type: Bug
Reporter: Ying He
Exception is thrown for a script like the following:
register /homes/yinghe/owl/string.jar;
a = load 'a.txt' as (id, url);
b = group a by (id, url);
c = foreach b generate COUNT(a), (CHARARRAY) string.URLPARSE(group.url)#'url';
dump c;
In this query, URLPARSE() is not accumulative, and it returns a map.
The accumulator optimizer failed to check UDF in this case, and tries to run the job in accumulative mode. ClassCastException is thrown when trying to cast UDF into Accumulator interface.
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[jira] Closed: (PIG-1241) Accumulator is turned on when a map is
used with a non-accumulative UDF
Posted by "Daniel Dai (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/PIG-1241?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Daniel Dai closed PIG-1241.
---------------------------
> Accumulator is turned on when a map is used with a non-accumulative UDF
> -----------------------------------------------------------------------
>
> Key: PIG-1241
> URL: https://issues.apache.org/jira/browse/PIG-1241
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.6.0
> Reporter: Ying He
> Assignee: Ying He
> Fix For: 0.7.0
>
> Attachments: accum.patch
>
>
> Exception is thrown for a script like the following:
> register /homes/yinghe/owl/string.jar;
> a = load 'a.txt' as (id, url);
> b = group a by (id, url);
> c = foreach b generate COUNT(a), (CHARARRAY) string.URLPARSE(group.url)#'url';
> dump c;
> In this query, URLPARSE() is not accumulative, and it returns a map.
> The accumulator optimizer failed to check UDF in this case, and tries to run the job in accumulative mode. ClassCastException is thrown when trying to cast UDF into Accumulator interface.
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[jira] Commented: (PIG-1241) Accumulator is turned on when a map is
used with a non-accumulative UDF
Posted by "Ying He (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/PIG-1241?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12834955#action_12834955 ]
Ying He commented on PIG-1241:
------------------------------
no, by default it is on.
boolean isAccum = "true".equalsIgnoreCase(pc.getProperties().getProperty("opt.accumulator","true"));
means if "opt.accumulator" is not present, the default value is "true"
> Accumulator is turned on when a map is used with a non-accumulative UDF
> -----------------------------------------------------------------------
>
> Key: PIG-1241
> URL: https://issues.apache.org/jira/browse/PIG-1241
> Project: Pig
> Issue Type: Bug
> Reporter: Ying He
> Attachments: accum.patch
>
>
> Exception is thrown for a script like the following:
> register /homes/yinghe/owl/string.jar;
> a = load 'a.txt' as (id, url);
> b = group a by (id, url);
> c = foreach b generate COUNT(a), (CHARARRAY) string.URLPARSE(group.url)#'url';
> dump c;
> In this query, URLPARSE() is not accumulative, and it returns a map.
> The accumulator optimizer failed to check UDF in this case, and tries to run the job in accumulative mode. ClassCastException is thrown when trying to cast UDF into Accumulator interface.
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[jira] Commented: (PIG-1241) Accumulator is turned on when a map is
used with a non-accumulative UDF
Posted by "Olga Natkovich (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/PIG-1241?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12834947#action_12834947 ]
Olga Natkovich commented on PIG-1241:
-------------------------------------
Ying, I thought that accumlate is on by default but it looks like you are setting it on only if the property is present. Is this true?
> Accumulator is turned on when a map is used with a non-accumulative UDF
> -----------------------------------------------------------------------
>
> Key: PIG-1241
> URL: https://issues.apache.org/jira/browse/PIG-1241
> Project: Pig
> Issue Type: Bug
> Reporter: Ying He
> Attachments: accum.patch
>
>
> Exception is thrown for a script like the following:
> register /homes/yinghe/owl/string.jar;
> a = load 'a.txt' as (id, url);
> b = group a by (id, url);
> c = foreach b generate COUNT(a), (CHARARRAY) string.URLPARSE(group.url)#'url';
> dump c;
> In this query, URLPARSE() is not accumulative, and it returns a map.
> The accumulator optimizer failed to check UDF in this case, and tries to run the job in accumulative mode. ClassCastException is thrown when trying to cast UDF into Accumulator interface.
--
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[jira] Updated: (PIG-1241) Accumulator is turned on when a map is
used with a non-accumulative UDF
Posted by "Ying He (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/PIG-1241?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ying He updated PIG-1241:
-------------------------
Attachment: accum.patch
patch to check UDF when it's with map operation
> Accumulator is turned on when a map is used with a non-accumulative UDF
> -----------------------------------------------------------------------
>
> Key: PIG-1241
> URL: https://issues.apache.org/jira/browse/PIG-1241
> Project: Pig
> Issue Type: Bug
> Reporter: Ying He
> Attachments: accum.patch
>
>
> Exception is thrown for a script like the following:
> register /homes/yinghe/owl/string.jar;
> a = load 'a.txt' as (id, url);
> b = group a by (id, url);
> c = foreach b generate COUNT(a), (CHARARRAY) string.URLPARSE(group.url)#'url';
> dump c;
> In this query, URLPARSE() is not accumulative, and it returns a map.
> The accumulator optimizer failed to check UDF in this case, and tries to run the job in accumulative mode. ClassCastException is thrown when trying to cast UDF into Accumulator interface.
--
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You can reply to this email to add a comment to the issue online.
[jira] Updated: (PIG-1241) Accumulator is turned on when a map is
used with a non-accumulative UDF
Posted by "Olga Natkovich (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/PIG-1241?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Olga Natkovich updated PIG-1241:
--------------------------------
Affects Version/s: 0.6.0
Fix Version/s: 0.7.0
Assignee: Ying He
> Accumulator is turned on when a map is used with a non-accumulative UDF
> -----------------------------------------------------------------------
>
> Key: PIG-1241
> URL: https://issues.apache.org/jira/browse/PIG-1241
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.6.0
> Reporter: Ying He
> Assignee: Ying He
> Fix For: 0.7.0
>
> Attachments: accum.patch
>
>
> Exception is thrown for a script like the following:
> register /homes/yinghe/owl/string.jar;
> a = load 'a.txt' as (id, url);
> b = group a by (id, url);
> c = foreach b generate COUNT(a), (CHARARRAY) string.URLPARSE(group.url)#'url';
> dump c;
> In this query, URLPARSE() is not accumulative, and it returns a map.
> The accumulator optimizer failed to check UDF in this case, and tries to run the job in accumulative mode. ClassCastException is thrown when trying to cast UDF into Accumulator interface.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
[jira] Updated: (PIG-1241) Accumulator is turned on when a map is
used with a non-accumulative UDF
Posted by "Olga Natkovich (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/PIG-1241?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Olga Natkovich updated PIG-1241:
--------------------------------
Resolution: Fixed
Status: Resolved (was: Patch Available)
patch committed to the trunk. Thanks, Ying
> Accumulator is turned on when a map is used with a non-accumulative UDF
> -----------------------------------------------------------------------
>
> Key: PIG-1241
> URL: https://issues.apache.org/jira/browse/PIG-1241
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.6.0
> Reporter: Ying He
> Assignee: Ying He
> Fix For: 0.7.0
>
> Attachments: accum.patch
>
>
> Exception is thrown for a script like the following:
> register /homes/yinghe/owl/string.jar;
> a = load 'a.txt' as (id, url);
> b = group a by (id, url);
> c = foreach b generate COUNT(a), (CHARARRAY) string.URLPARSE(group.url)#'url';
> dump c;
> In this query, URLPARSE() is not accumulative, and it returns a map.
> The accumulator optimizer failed to check UDF in this case, and tries to run the job in accumulative mode. ClassCastException is thrown when trying to cast UDF into Accumulator interface.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
[jira] Commented: (PIG-1241) Accumulator is turned on when a map is
used with a non-accumulative UDF
Posted by "Hadoop QA (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/PIG-1241?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12834635#action_12834635 ]
Hadoop QA commented on PIG-1241:
--------------------------------
+1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12436056/accum.patch
against trunk revision 909921.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 6 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs warnings.
+1 release audit. The applied patch does not increase the total number of release audit warnings.
+1 core tests. The patch passed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h8.grid.sp2.yahoo.net/212/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h8.grid.sp2.yahoo.net/212/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h8.grid.sp2.yahoo.net/212/console
This message is automatically generated.
> Accumulator is turned on when a map is used with a non-accumulative UDF
> -----------------------------------------------------------------------
>
> Key: PIG-1241
> URL: https://issues.apache.org/jira/browse/PIG-1241
> Project: Pig
> Issue Type: Bug
> Reporter: Ying He
> Attachments: accum.patch
>
>
> Exception is thrown for a script like the following:
> register /homes/yinghe/owl/string.jar;
> a = load 'a.txt' as (id, url);
> b = group a by (id, url);
> c = foreach b generate COUNT(a), (CHARARRAY) string.URLPARSE(group.url)#'url';
> dump c;
> In this query, URLPARSE() is not accumulative, and it returns a map.
> The accumulator optimizer failed to check UDF in this case, and tries to run the job in accumulative mode. ClassCastException is thrown when trying to cast UDF into Accumulator interface.
--
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-
You can reply to this email to add a comment to the issue online.
[jira] Updated: (PIG-1241) Accumulator is turned on when a map is
used with a non-accumulative UDF
Posted by "Ying He (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/PIG-1241?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ying He updated PIG-1241:
-------------------------
Status: Patch Available (was: Open)
> Accumulator is turned on when a map is used with a non-accumulative UDF
> -----------------------------------------------------------------------
>
> Key: PIG-1241
> URL: https://issues.apache.org/jira/browse/PIG-1241
> Project: Pig
> Issue Type: Bug
> Reporter: Ying He
> Attachments: accum.patch
>
>
> Exception is thrown for a script like the following:
> register /homes/yinghe/owl/string.jar;
> a = load 'a.txt' as (id, url);
> b = group a by (id, url);
> c = foreach b generate COUNT(a), (CHARARRAY) string.URLPARSE(group.url)#'url';
> dump c;
> In this query, URLPARSE() is not accumulative, and it returns a map.
> The accumulator optimizer failed to check UDF in this case, and tries to run the job in accumulative mode. ClassCastException is thrown when trying to cast UDF into Accumulator interface.
--
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You can reply to this email to add a comment to the issue online.