Hello Lou, how do you clear the automatic ones (e.g. names unknown) without clearing > the named ones? >
The option '-t' might be what you are looking for: 'nodetool clearsnapshot -t nameOfMySnapshot'. >From the documentation here: http://cassandra.apache.org/doc/latest/tools/nodetool/clearsnapshot.html?highlight=clearsnapshot Le lun. 5 nov. 2018 à 13:38, Lou DeGenaro <lou.degen...@gmail.com> a écrit : > The issue really is how to manage disk space. It is certainly possible to > take snapshots by name and delete them by name, perhaps one for each day of > the week. But how do you clear the automatic ones (e.g. names unknown) > without clearing the named ones? > > Thanks. > > Lou. > > On Fri, Nov 2, 2018 at 12:28 PM Oleksandr Shulgin < > oleksandr.shul...@zalando.de> wrote: > >> On Fri, Nov 2, 2018 at 5:15 PM Lou DeGenaro <lou.degen...@gmail.com> >> wrote: >> >>> I'm looking to hear how others are coping with snapshots. >>> >>> According to the doc: >>> https://docs.datastax.com/en/cassandra/3.0/cassandra/operations/opsBackupDeleteSnapshot.html >>> >>> *When taking a snapshot, previous snapshot files are not automatically >>> deleted. You should remove old snapshots that are no longer needed.* >>> >>> *The nodetool clearsnapshot >>> <https://docs.datastax.com/en/cassandra/3.0/cassandra/tools/toolsClearSnapShot.html> >>> command removes all existing snapshot files from the snapshot directory of >>> each keyspace. You should make it part of your back-up process to clear old >>> snapshots before taking a new one.* >>> >>> But if you delete first, then there is a window of time when no snapshot >>> exists until the new one is created. And with a single snapshot there is >>> no recovery further back than it. >>> >> You can also delete specific snapshot, by passing its name to the >> clearsnapshot command. For example, you could use snapshot date as part of >> the name. This will also prevent removing snapshots which were taken for >> reasons other than backup, like the automatic snapshot due to running >> TRUNCATE or DROP commands, or any other snapshots which might have been >> created manually by the operators. >> >> Regards, >> -- >> Alex >> >>
