No cache version.
Caching disabled. Default setting for this page:enabled (code DEF204)If the display is too slow, you can disable the user mode to view the cached version.
Rechercher dans le manuel MySQL
17.2.3.3 Startup Options and Replication Channels
This section describes startup options which are impacted by the addition of replication channels.
The following startup options must be configured correctly to use multi-source replication.
This must be set to
TABLE. If this option is set toFILE, attempting to add more sources to a slave fails withER_SLAVE_NEW_CHANNEL_WRONG_REPOSITORY. TheFILEsetting is now deprecated, andTABLEis the default.--master-info-repositoryThis must be set to
TABLE. If this option is set toFILE, attempting to add more sources to a slave fails withER_SLAVE_NEW_CHANNEL_WRONG_REPOSITORY. TheFILEsetting is now deprecated, andTABLEis the default.
The following startup options now affect all channels in a replication topology.
All transactions received by the slave (even from multiple sources) are written in the binary log.
When set, each channel purges its own relay log automatically.
The specified number of transaction retries can take place on all applier threads of all channels.
No replication threads start on any channels.
Execution continues and errors are skipped for all channels.
The values set for the following startup options apply on each channel; since these are mysqld startup options, they are applied on every channel.
--max-relay-log-size=sizeMaximum size of the individual relay log file for each channel; after reaching this limit, the file is rotated.
--relay-log-space-limit=sizeUpper limit for the total size of all relay logs combined, for each individual channel. For
Nchannels, the combined size of these logs is limited torelay_log_space_limit *.N--slave-parallel-workers=valueNumber of slave parallel workers per channel.
--slave-checkpoint-groupWaiting time by an I/O thread for each source.
--relay-log-index=filenameBase name for each channel's relay log index file. See Section 17.2.3.4, “Replication Channel Naming Conventions”.
--relay-log=filenameDenotes the base name of each channel's relay log file. See Section 17.2.3.4, “Replication Channel Naming Conventions”.
--slave_net-timeout=NThis value is set per channel, so that each channel waits for
Nseconds to check for a broken connection.--slave-skip-counter=NThis value is set per channel, so that each channel skips
Nevents from its master.
Document created the 26/06/2006, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/mysql-rf-channels-startup-options.html
The infobrol is a personal site whose content is my sole responsibility. The text is available under CreativeCommons license (BY-NC-SA). More info on the terms of use and the author.
References
These references and links indicate documents consulted during the writing of this page, or which may provide additional information, but the authors of these sources can not be held responsible for the content of this page.
The author This site is solely responsible for the way in which the various concepts, and the freedoms that are taken with the reference works, are presented here. Remember that you must cross multiple source information to reduce the risk of errors.
