[DOC] innodb_adaptive_flushing_method=estimate kicks in at 1/4 not 1/2 of max age
Bug #1009842 reported by
Laurynas Biveinis
This bug affects 2 people
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| Percona Server moved to https://jira.percona.com/projects/PS |
Fix Released
|
Low
|
Hrvoje Matijakovic | ||
| 5.5 |
Fix Released
|
Low
|
Hrvoje Matijakovic | ||
Bug Description
[In:Percona Server Documentation]
The docs state "estimate: If the oldest modified age exceeds 1/2 of the maximum age capacity, InnoDB starts flushing blocks every second." The actual limit in the source code is 1/4, not 1/2, and has been this way since day one.
Thanks to Jay Janssen for pointing this out.
Related branches
lp:~hrvojem/percona-server/bug792351-5.5
- Laurynas Biveinis (community): Approve
-
Diff: 203 lines (+42/-31)9 files modifieddoc/source/diagnostics/innodb_stats.rst (+1/-4)
doc/source/diagnostics/slow_extended_55.rst (+2/-3)
doc/source/flexibility/buff_read_ahead_area.rst (+1/-1)
doc/source/management/innodb_expand_import.rst (+1/-1)
doc/source/management/udf_maatkit.rst (+16/-17)
doc/source/reliability/innodb_recovery_update_relay_log.rst (+2/-2)
doc/source/scalability/innodb_expand_undo_slots.rst (+2/-2)
doc/source/scalability/innodb_io_55.rst (+14/-1)
doc/source/upgrading_guide_51_55.rst (+3/-0)
Revision history for this message
| Laurynas Biveinis (laurynas-biveinis) wrote | #1 |
Revision history for this message
| Shahriyar Rzayev (rzayev-sehriyar) wrote | #2 |
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This is for 5.5 only. In 5.1 the limit in the source code and in docs is 1/2.
It looks like 5.5 limit was changed during the initial port to 5.5.