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add checks for wsrep_slave_FK_check and innodb_autoinc_lock_mode when wsrep_slave_threads > 1

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jfcoz 2017-03-07 17:53:36 +01:00
parent 48be29a288
commit f61cbce4f8
1 changed files with 18 additions and 2 deletions
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mysqltuner.pl
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@ -31,6 +31,7 @@
# Simon Greenaway Adam Stein Isart Montane # Simon Greenaway Adam Stein Isart Montane
# Baptiste M. Cole Turner Major Hayden # Baptiste M. Cole Turner Major Hayden
# Joe Ashcraft Jean-Marie Renouard Christian Loos # Joe Ashcraft Jean-Marie Renouard Christian Loos
# Julien Francoz
# #
# Inspired by Matthew Montgomery's tuning-primer.sh script: # Inspired by Matthew Montgomery's tuning-primer.sh script:
# http://forge.mysql.com/projects/view.php?id=44 # http://forge.mysql.com/projects/view.php?id=44
@ -5044,9 +5045,24 @@ having sum(if(c.column_key in ('PRI','UNI'), 1,0)) = 0"
if (get_wsrep_option('wsrep_slave_threads') > `nproc`*4 or get_wsrep_option('wsrep_slave_threads') < `nproc`*3) { if (get_wsrep_option('wsrep_slave_threads') > `nproc`*4 or get_wsrep_option('wsrep_slave_threads') < `nproc`*3) {
badprint "wsrep_slave_threads is not equal to 3 or 4 times number of CPU(s)"; badprint "wsrep_slave_threads is not equal to 3 or 4 times number of CPU(s)";
push @adjvars, "wsrep_slave_threads= Nb of Core CPU * 4"; push @adjvars, "wsrep_slave_threads= Nb of Core CPU * 4";
} else { } else {
goodprint "wsrep_slave_threads is equal to 3 or 4 times number of CPU(s)"; goodprint "wsrep_slave_threads is equal to 3 or 4 times number of CPU(s)";
} }
if ($myvar{'wsrep_slave_threads'} > 1) {
badprint "wsrep parallel slave can cause frequent inconsistency crash.";
push @adjvars, "Set wsrep_slave_threads to 1 in case of HA_ERR_FOUND_DUPP_KEY crash on slave";
# check options for parallel slave
if ($myvar{'wsrep_slave_FK_checks'} eq "OFF") {
badprint "wsrep_slave_FK_checks is off with parallel slave";
push @adjvars, "wsrep_slave_FK_checks should be ON when using parallel slave";
}
# wsrep_slave_UK_checks seems useless in MySQL source code
if ($myvar{'innodb_autoinc_lock_mode'} != 2) {
badprint "innodb_autoinc_lock_mode is incorrect with parallel slave";
push @adjvars, "innodb_autoinc_lock_mode should be 2 when using parallel slave";
}
}
if (get_wsrep_option('gcs.limit') != get_wsrep_option('wsrep_slave_threads') *5 ) { if (get_wsrep_option('gcs.limit') != get_wsrep_option('wsrep_slave_threads') *5 ) {
badprint "gcs.limit should be equal to 5 * wsrep_slave_threads"; badprint "gcs.limit should be equal to 5 * wsrep_slave_threads";