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performance.rst: fix "slow_query_log_file" configuration

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Alessandro Polidori 2018-03-22 14:27:16 +01:00 committed by Morris Jobke
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commit dedc27b8a9
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1 changed files with 3 additions and 3 deletions
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developer_manual/general/performance.rst
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@ -30,7 +30,7 @@ With MySQL it is very easy with just a bit of configuration:
If you put this into your my.cnf file, every query that takes longer than one second is logged to a logfile::
slow_query_log = 1
slow_query_log = /var/log/mysql/mysql-slow.log
slow_query_log_file = /var/log/mysql/mysql-slow.log
long_query_time=1
If a query takes more than a second we have a serious problem of course. You can watch it with `tail -f /var/log/mysql/mysql-slow.log` while using Nextcloud.
@ -40,7 +40,7 @@ If a query takes more than a second we have a serious problem of course. You can
If you reduce the long_query_time to zero then every statement is logged. This is super helpful to see what is going on. Just do a `tail -f` on the logfile and click around in the interface or access the WebDAV interface::
slow_query_log = 1
slow_query_log = /var/log/mysql/mysql-slow.log
slow_query_log_file = /var/log/mysql/mysql-slow.log
long_query_time=0
3. log queries without an index.
@ -49,7 +49,7 @@ If you increase the long_query_time to 100 and add log-queries-not-using-indexes
log-queries-not-using-indexes
slow_query_log = 1
slow_query_log = /var/log/mysql/mysql-slow.log
slow_query_log_file = /var/log/mysql/mysql-slow.log
long_query_time=100
Measuring performance