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Posted to dev@pig.apache.org by "Maximus (JIRA)" <ji...@apache.org> on 2014/06/18 12:22:06 UTC
[jira] [Updated] (PIG-626) Statistics (records read by each mapper
and reducer)
[ https://issues.apache.org/jira/browse/PIG-626?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Maximus updated PIG-626:
------------------------
Description:
This uses (lalala) the counters framework that hadoop has. Initially, I am just interested in finding out the number of records read by each mapper/reducer particularly for the last job in any script. A sample code to access the statistics for the last job:
String reducePlan = stats.getPigStats().get(stats.getLastJobID()).get("PIG_STATS_REDUCE_PLAN");
if(reducePlan == null) {
System.out.println("Records written : " + stats.getPigStats().get(stats.getLastJobID()).get("PIG_STATS_MAP_OUTPUT_RECORDS"));
} else {
System.out.println("Records written : " + stats.getPigStats().get(stats.getLastJobID()).get("PIG_STATS_REDUCE_OUTPUT_RECORDS"));
}
The patch contains 7 test cases. These include tests PigStorage and BinStorage along with one for multiple MR jobs case.
was:
This uses the counters framework that hadoop has. Initially, I am just interested in finding out the number of records read by each mapper/reducer particularly for the last job in any script. A sample code to access the statistics for the last job:
String reducePlan = stats.getPigStats().get(stats.getLastJobID()).get("PIG_STATS_REDUCE_PLAN");
if(reducePlan == null) {
System.out.println("Records written : " + stats.getPigStats().get(stats.getLastJobID()).get("PIG_STATS_MAP_OUTPUT_RECORDS"));
} else {
System.out.println("Records written : " + stats.getPigStats().get(stats.getLastJobID()).get("PIG_STATS_REDUCE_OUTPUT_RECORDS"));
}
The patch contains 7 test cases. These include tests PigStorage and BinStorage along with one for multiple MR jobs case.
> Statistics (records read by each mapper and reducer)
> ----------------------------------------------------
>
> Key: PIG-626
> URL: https://issues.apache.org/jira/browse/PIG-626
> Project: Pig
> Issue Type: New Feature
> Components: impl
> Affects Versions: 0.2.0
> Reporter: Shubham Chopra
> Assignee: Shubham Chopra
> Priority: Minor
> Fix For: 0.3.0
>
> Attachments: PIG-626.patch, TEST-org.apache.pig.test.TestBZip.txt, pigStats.patch, pigStats.patch, pigStats.patch, pigStats.patch, pigStats.patch
>
>
> This uses (lalala) the counters framework that hadoop has. Initially, I am just interested in finding out the number of records read by each mapper/reducer particularly for the last job in any script. A sample code to access the statistics for the last job:
> String reducePlan = stats.getPigStats().get(stats.getLastJobID()).get("PIG_STATS_REDUCE_PLAN");
> if(reducePlan == null) {
> System.out.println("Records written : " + stats.getPigStats().get(stats.getLastJobID()).get("PIG_STATS_MAP_OUTPUT_RECORDS"));
> } else {
> System.out.println("Records written : " + stats.getPigStats().get(stats.getLastJobID()).get("PIG_STATS_REDUCE_OUTPUT_RECORDS"));
> }
> The patch contains 7 test cases. These include tests PigStorage and BinStorage along with one for multiple MR jobs case.
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