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Posted to commits@cassandra.apache.org by "Sylvain Lebresne (JIRA)" <ji...@apache.org> on 2012/06/01 11:05:23 UTC
[jira] [Updated] (CASSANDRA-4264) live ratio limit 64.0 is way too
low
[ https://issues.apache.org/jira/browse/CASSANDRA-4264?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sylvain Lebresne updated CASSANDRA-4264:
----------------------------------------
Attachment: 4264-v2.txt
> live ratio limit 64.0 is way too low
> ------------------------------------
>
> Key: CASSANDRA-4264
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4264
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Affects Versions: 0.8.0
> Environment: FreeBSD 8 - 64 bit
> Reporter: Radim Kolar
> Assignee: Jonathan Ellis
> Priority: Trivial
> Fix For: 1.1.1
>
> Attachments: 4264-v2.txt, 4264.txt, patch-liveratio.txt
>
>
> Currently live ratio is limited to 64.0. This is way too low.
> WARN [MemoryMeter:1] Memtable.java (line 181) setting live ratio to maximum of 64 instead of xxxx
> values seen in log are ofter larger than 64.0 limit. I propose to use 100.0 as new limit.
> ponto:(admin)log/cassandra>grep "to maximum of 64" system.log.1
> WARN [MemoryMeter:1] 2012-02-03 00:00:19,444 Memtable.java (line 181) setting live ratio to maximum of 64 instead of 64.9096047648211
> WARN [MemoryMeter:1] 2012-02-08 00:00:17,379 Memtable.java (line 181) setting live ratio to maximum of 64 instead of 68.81016452376322
> WARN [MemoryMeter:1] 2012-02-08 00:00:32,358 Memtable.java (line 181) setting live ratio to maximum of 64 instead of 88.49747308025415
> WARN [MemoryMeter:1] 2012-02-09 00:00:08,448 Memtable.java (line 181) setting live ratio to maximum of 64 instead of 76.2444888765154
> WARN [MemoryMeter:1] 2012-02-10 18:18:52,677 Memtable.java (line 181) setting live ratio to maximum of 64 instead of 142.22477982642255
> WARN [MemoryMeter:1] 2012-02-20 00:00:53,753 Memtable.java (line 181) setting live ratio to maximum of 64 instead of 88.19832386767173
> WARN [MemoryMeter:1] 2012-03-02 10:41:00,232 Memtable.java (line 181) setting live ratio to maximum of 64 instead of 419.9607495592804
> WARN [MemoryMeter:1] 2012-03-07 14:13:15,141 Memtable.java (line 181) setting live ratio to maximum of 64 instead of Infinity
> WARN [MemoryMeter:1] 2012-03-08 00:01:12,766 Memtable.java (line 181) setting live ratio to maximum of 64 instead of 94.20215772717702
> WARN [MemoryMeter:1] 2012-03-09 00:00:38,633 Memtable.java (line 181) setting live ratio to maximum of 64 instead of 98.54003447121715
> WARN [MemoryMeter:1] 2012-03-11 00:00:13,243 Memtable.java (line 181) setting live ratio to maximum of 64 instead of 193.14262214179965
> WARN [MemoryMeter:1] 2012-03-14 00:00:26,709 Memtable.java (line 181) setting live ratio to maximum of 64 instead of 103.88360138951437
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