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From "Zenek Kraweznik (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-3693) strange values of pending tasks with compactionstats (below 0)
Date Sun, 08 Jan 2012 21:14:39 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-3693?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13182293#comment-13182293
] 

Zenek Kraweznik commented on CASSANDRA-3693:
--------------------------------------------

I'm using leveled compaction (with 4096mb limit, but with compression sstables are smaller).

There's a 80GB per node (3 nodes, replication factor=3).

# find /var/lib/cassandra/data -type f | wc -l
273
#

=> 273 sstables

compactionstats looks now like this:

pending tasks: -2147483648
          compaction type        keyspace   column family bytes compacted     bytes total
 progress
               Compaction         Archive        Messages     35050352366               0
      n/a

I wonder why 0 bytes total is visible on this node (nodetool ring is reporting 37.18GB).
                
> strange values of pending tasks with compactionstats (below 0)
> --------------------------------------------------------------
>
>                 Key: CASSANDRA-3693
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3693
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core, Tools
>    Affects Versions: 1.0.6
>         Environment: linux, oracle java 1.6.26
>            Reporter: Zenek Kraweznik
>            Priority: Minor
>
> during scrub:
> Every 2.0s: for i in 1 2 3; do nodetool -h 192.168.2.$i compactionstats; done       
                                                                                         
                                   Wed Jan  4 13:48:13 2012
> pending tasks: 2147483646
>           compaction type        keyspace   column family bytes compacted     bytes total
 progress
>                Compaction         Archive        Messages     28034971475     72393139120
   38.73%
> pending tasks: -2147483647
>           compaction type        keyspace   column family bytes compacted     bytes total
 progress
>                Compaction         Archive        Messages     24575687282     72385305067
   33.95%
> pending tasks: 0

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