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https://issues.apache.org/jira/browse/CASSANDRA-3693?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13182293#comment-13182293
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Zenek Kraweznik edited comment on CASSANDRA-3693 at 1/9/12 9:02 PM:
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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).
After every compactions bytes total is about 73xxxxxxxxx (i guess it is not
compress data size), but this value isn't saved anywhere.
was (Author: zenek_kraweznik0):
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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