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Version 2.0.0 (and newer) of opEvents provides a new mechanism for expiring old data from the database. The purging is totally optional and no old data will be removed unless you explicitely configure opEvents to do so.
Important, Versions of opEvents Prior to 2.4.2 will not have a purging policy configured by default, the installer will prompt to enable the default policy.
What can be purged?
opEvents can expire four different types of old data independently:
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Your desired purging policy is defined by setting one or more of the following four configuration properties in conf/opCommon.nmis (or opCommon.json in opEvents 4.x and newer). Here is the commented example from install/opCommon.nmisjson:
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'"opevents'" =>: { # lots of other directives... # how long should things be kept in the db? format NN[dhm]MM[hm]..., plain N means N minutes. 0 or undef means no purging. '"opevents_reports_purge_older_than'" => undef: "730d", # covers summary reports '"opevents_events_purge_older_than' => undef": "180d", # covers events and actions '"opevents_rawlogs_purge_older_than'" => undef,: "90d", # covers raw logs '"opevents_archivelogs_purge_older_than'" => undef: "365d", # covers archive logs |
The configuration is pretty straightforward:
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The expiration of old data is performed by opeventsdopevents-cli.pl if and when it is started with the argument act=purge. You can also instruct it to only tell you how many entries a purge run would remove (without removing anything) by giving the arguments act=purge simulate=true.
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# this cron schedule controls opEvents db purging and reporting # # m h dom month dow user command # # purge the database once weekly 12 3 * * 51 root /usr/local/opmojoomk/bin/opevents-cli.plexe act=purge # create daily summary reports 021 93 * * * root /usr/local/opmojo/bin/opevents-cli.pl act=create-report daily=true 0 15 * * * root /usr/local/opmojoomk/bin/opevents-cli.plexe act=create-report daily=true # create weekly summary reports 32 3 * * 1 root /usr/local/opmojoomk/bin/opevents-cli.plexe act=create-report weekly=true # create monthly summary reports 43 4 1 * * root /usr/local/opmojoomk/bin/opevents-cli.plexe act=create-report monthly=true |