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From "Chris Douglas (JIRA)" <j...@apache.org>
Subject [jira] Updated: (MAPREDUCE-1381) Incorrect values being displayed for blacklisted_maps and blacklisted_reduces
Date Fri, 19 Feb 2010 07:43:29 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-1381?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Chris Douglas updated MAPREDUCE-1381:

    Fix Version/s:     (was: 0.20.2)

> Incorrect values being displayed for blacklisted_maps and blacklisted_reduces
> -----------------------------------------------------------------------------
>                 Key: MAPREDUCE-1381
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1381
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: jobtracker
>    Affects Versions: 0.20.1
>            Reporter: Ramya R
>            Priority: Minor
> blacklisted_maps and blacklisted_reduces metrics collected displays wrong values. For
example when trackers_blacklisted=6 and with each TT having 6 map slots and 2 reduce slots,
blacklisted_maps should be 36 and blacklisted_reduces should be 12. However I observed values
which were not expected. Below is a snapshot of the metrics obtained:
> mapred.jobtracker: hostName=<hostname>, sessionId=, *blacklisted_maps=24*, *blacklisted_reduces=8*,
jobs_completed=136, jobs_failed=26, jobs_killed=0, jobs_preparing=0, jobs_running=13, jobs_submitted=165,
map_slots=2748, maps_completed=76501, maps_failed=8741, maps_killed=0, maps_launched=88199,
occupied_map_slots=1902, occupied_reduce_slots=902, reduce_slots=916, reduces_completed=21927,
reduces_failed=184, reduces_killed=0, reduces_launched=23027, reserved_map_slots=0, reserved_reduce_slots=0,
running_maps=1902, running_reduces=902, trackers=464, *trackers_blacklisted=6*, trackers_decommissioned=1,
waiting_maps=-1741, waiting_reduces=2042

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