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https://issues.apache.org/jira/browse/CASSANDRA-9235?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14511105#comment-14511105
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Sergey Maznichenko commented on CASSANDRA-9235:
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I use LCS.
It happens on all nodes:
pending tasks: -222209007
pending tasks: -222222228
pending tasks: -222209142
compaction type keyspace table completed total
unit progress
Compaction archivespace file_storage 493893100494 710281935201
bytes 69.53%
Active compaction remaining time : 0h03m26s
pending tasks: -222217719
compaction type keyspace table completed total
unit progress
Compaction archivespace file_storage 286845775 539131720
bytes 53.21%
Active compaction remaining time : 0h00m00s
pending tasks: -222221094
compaction type keyspace table completed total
unit progress
Compaction archivespace file_storage 546045136 1040249351
bytes 52.49%
Active compaction remaining time : 0h00m00s
pending tasks: -222211160
compaction type keyspace table completed total
unit progress
Compaction archivespace file_storage 173527855063 754763739654
bytes 22.99%
Active compaction remaining time : 0h09m14s
pending tasks: -222217961
compaction type keyspace table completed total
unit progress
Compaction archivespace file_storage 307582716 539133247
bytes 57.05%
Active compaction remaining time : 0h00m00s
pending tasks: -222210946
compaction type keyspace table completed
total unit progress
Compaction archivespace file_storage 1102055174099
6063766404241 bytes 18.17%
Active compaction remaining time : 1h18m56s
It seems to me that it began when I added another table in keyspace.
> nodetool compactionstats. Negative numbers in pending tasks
> ------------------------------------------------------------
>
> Key: CASSANDRA-9235
> URL: https://issues.apache.org/jira/browse/CASSANDRA-9235
> Project: Cassandra
> Issue Type: Bug
> Components: API, Core
> Environment: CentOS 6.2 x64, Cassandra 2.1.4
> Java(TM) SE Runtime Environment (build 1.7.0_71-b14)
> Java HotSpot(TM) 64-Bit Server VM (build 24.71-b01, mixed mode)
> Reporter: Sergey Maznichenko
> Assignee: Marcus Eriksson
> Priority: Minor
> Fix For: 2.1.5
>
>
> nodetool compactionstats
> pending tasks: -222222228
> I can see negative numbers in 'pending tasks' on all 8 nodes
> it looks like -222222228 + real number of pending tasks
> for example -222222128 for 100 real pending tasks
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