Uploaded image for project: 'MariaDB Server'
  1. MariaDB Server
  2. MDEV-18022

MariaDB document have old information

    Details

      Description

      I installed vanilla MariaDB 10.1.37, and enabled wsrep library.
      When I checked default wsrep_provider_option setting, found some wrong points :

      (1)
      "evs.suspect_timeout" default value (PT5S) is different from reference manual :

      https://mariadb.com/kb/en/library/wsrep_provider_options/#evssuspect_timeout
      > Default: PT10S

      (2)
      The magnitude correlation among "evs.suspect_timeout" and "evs.inactive_timeout" and "evs.install_timeout = PT7.5S" is deffer from the codership manual recommendation :

      http://galeracluster.com/documentation-webpages/configurationtips.html

      recomended :
      evs.suspect_timeout < evs.inactive_timeout (default : 15sec) ≦ evs.install_timeout (default : 15sec)

      MariaDB default:
      evs.suspect_timeout < evs.install_timeout (default : 7.5sec) < evs.inactive_timeout (default : 15sec)  
      

      MariaDB [(none)]> show global variables like "wsrep_provider_%"\G
      *************************** 1. row ***************************
      Variable_name: wsrep_provider_options
              Value: ...(cut)... evs.auto_evict = 0; evs.causal_keepalive_period = PT1S; evs.debug_log_mask = 0x1; evs.delay_margin = PT1S; evs.delayed_keep_period = PT30S; evs.inactive_check_period = PT0.5S; evs.inactive_timeout = PT15S; evs.info_log_mask = 0; evs.install_timeout = PT7.5S; evs.join_retrans_period = PT1S; evs.keepalive_period = PT1S; evs.max_install_timeouts = 3; evs.send_window = 4; evs.stats_report_period = PT1M; evs.suspect_timeout = PT5S; evs.use_aggregate = true; evs.user_send_window = 2; evs.version = 0; evs.view_forget_timeout = P1D; ...(cut)...
      1 row in set (0.00 sec)
       
      MariaDB [(none)]> select version();
      +-----------------+
      | version()       |
      +-----------------+
      | 10.1.37-MariaDB |
      +-----------------+
      1 row in set (0.00 sec)
      

        Attachments

          Activity

            People

            • Assignee:
              greenman Ian Gilfillan
              Reporter:
              y-taka y-taka
            • Votes:
              0 Vote for this issue
              Watchers:
              1 Start watching this issue

              Dates

              • Created:
                Updated: