mysqldumpslow not displaying query time

HTF1HTF1 ContributorInactive User Role Advisor
Hi,

I have MySQL Percona server (5.5.15-55) installed.

I tried to eliminate slow quires. I've enabled slow query log (please see details below) but the "mysqldumpslow" script is parsing them with time equal zero second. Is this some issue or do I have to change something in the configuration?


mysqldumpslow -l -s c -t 10 /var/log/mysql/mysql-slow.log...Count: 33 Time=0.00s (0s) Lock=0.00s (0s) Rows=0.0 (0), .00s... </pre>



mysql> SHOW VARIABLES LIKE '%slow%'; +
+
+| Variable_name | Value |+
+
+| log_slow_filter | || log_slow_queries | ON || log_slow_rate_limit | 1 || log_slow_slave_statements | OFF || log_slow_sp_statements | ON || log_slow_verbosity | || slow_launch_time | 2 || slow_query_log | ON || slow_query_log_file | /var/log/mysql/mysql-slow.log || slow_query_log_timestamp_always | OFF || slow_query_log_timestamp_precision | second || slow_query_log_use_global_control | |+
+
+</pre>


Reagrds

Comments

  • gmousegmouse Mod Squad Inactive User Role Leader
    Try log_slow_verbosity=full
  • HTF1HTF1 Contributor Inactive User Role Advisor
    <cite>gmouse wrote on Thu, 16 February 2012 10:39</cite>
    Try log_slow_verbosity=full
    Hi,

    Thanks for reply.

    I've noticed that there is a time stamp in the slow query log itself so maybe this tool is not parsing it properly?


    ...# Time: 120106 5:45:54...</pre>
  • dbaltasdbaltas Entrant Inactive User Role Participant
    What worked for me was removing lines from the slow log file that mention the Schema.

    sed -i.bak '/# Schema:/d' ./mysql-slow.log

    The command above will remove all lines containing `#Schema: <databasename>` and back up the original file to mysql-slow.log.bak
    Then the mysqldumpslow works like expected.

    I would prefer to have used the suggested pt-query-digest but I don't have the tool installed in my development machine, when I wanted to analyze percona logs from a production server.
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