[MDEV-6495] innodb_flush_log_at_trx_commit=0 as suggestion for galera vs =2 Created: 2014-07-28  Updated: 2014-08-06  Resolved: 2014-08-06

Status: Closed
Project: MariaDB Server
Component/s: None
Affects Version/s: 5.5.38-galera, 10.0.12-galera
Fix Version/s: 5.5.39-galera, 10.0.13-galera

Type: Bug Priority: Minor
Reporter: Daniel Black Assignee: Nirbhay Choubey (Inactive)
Resolution: Fixed Votes: 0
Labels: galera


 Description   

=0 is a better value that =2 because it is a background thread where durability is achieved based on isolated galera machines based on this research: openquery.com.au/blog/innodbflushlogsontrxcommit-galeracluster

upstream pull request for codership documentation: https://github.com/codership/galera/pull/86

patch:

=== modified file 'debian/additions/my.cnf'
--- debian/additions/my.cnf     2014-07-17 20:22:01 +0000
+++ debian/additions/my.cnf     2014-07-28 07:04:36 +0000
@@ -165,7 +165,7 @@
 #query_cache_size=0
 #
 # Optional setting
-#innodb_flush_log_at_trx_commit=2
+#innodb_flush_log_at_trx_commit=0
 
 [mysqldump]
 quick
 
=== modified file 'support-files/rpm/server.cnf'
--- support-files/rpm/server.cnf        2014-07-17 20:22:01 +0000
+++ support-files/rpm/server.cnf        2014-07-28 07:04:52 +0000
@@ -25,7 +25,7 @@
 #query_cache_size=0
 #
 # Optional setting
-#innodb_flush_log_at_trx_commit=2
+#innodb_flush_log_at_trx_commit=0
 
 # this is only for embedded server
 [embedded]
 



 Comments   
Comment by Nirbhay Choubey (Inactive) [ 2014-08-06 ]

Thank you for the suggestion. Updated.
http://bazaar.launchpad.net/~maria-captains/maria/maria-5.5-galera/revision/3515

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