sureshanaparti commented on code in PR #397: URL: https://github.com/apache/cloudstack-documentation/pull/397#discussion_r1593391508
########## source/adminguide/tuning.rst: ########## @@ -143,3 +143,76 @@ Article <http://support.citrix.com/article/CTX126531>`_.The article refers to XenServer 5.6, but the same information applies to XenServer 6 +Purging Expunged Resources +-------------------------- + +..note:: + Currently only available for Instances and their linked resources. + +Over the time there are chances of piling up of millions of database records +for the removed or expunged resources. The presence of a lot of useless +records in the database can also affect the performance of cloud so it is +needed to purge such entries in a systematic way. +CloudStack provides the following methods to allow purging of the expunged +resources and their database records: + +Using background task +~~~~~~~~~~~~~~~~~~~~~ + +A background task will run at regular intervals. The interval for the task and +other parameters for it such as resource types, start and end date and batch size +can also be controlled with the help of global settings. + +The following new global settings have been introduced which would allow +configuring background task for purging the expunged resources: + +.. cssclass:: table-striped table-bordered table-hover + +================================================ ================ =================================================================== +Global setting Default values Description +================================================ ================ =================================================================== +expunged.resources.purge.enabled false Whether to run a background task to purge the expunged resources. +expunged.resources.purge.resources (empty) A comma-separated list of resource types that will be considered by the background task to purge the expunged resources. Currently only VirtualMachine is supported. An empty "value will result in considering all resource types for purging. +expunged.resources.purge.interval 86400 Interval (in seconds) for the background task to purge the expunged resources. +expunged.resources.purge.delay 300 Initial delay (in seconds) to start the background task to purge the expunged resources task. +expunged.resources.purge.batch.size 50 Batch size to be used during expunged resources purging. +expunged.resources.purge.start.time (empty) Start time to be used by the background task to purge the expunged resources. Use format yyyy-MM-dd or yyyy-MM-dd HH:mm:ss. +expunged.resources.purge.keep.past.days 30 The number of days in the past from the execution time of the background task to purge the expunged resources for which the expunged resources must not be purged. To enable purging expunged resource till the execution of the background task, set the value to zero. Review Comment: ```suggestion expunged.resources.purge.keep.past.days 30 The number of days in the past from the execution time of the background task to keep the expunged resources for which the expunged resources must not be purged. To enable purging expunged resource till the execution of the background task, set the value to zero. ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: dev-unsubscr...@cloudstack.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
