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From Daniel Hölbling-Inzko <daniel.hoelbling-in...@bitmovin.com>
Subject Re: Cassandra Snapshots and directories
Date Fri, 12 May 2017 08:00:23 GMT
Hi Varun,
yes you are right - that's the structure that gets created. But if I want
to backup ALL columnfamilies at once this requires a quite complex rsync as
Vladimir mentioned.
I can't just copy over the /data/keyspace directory as that contains all
the data AND all the snapshots. I really have to go through this
columnfamily by columnfamily which is annoying.

greetings Daniel

On Thu, 11 May 2017 at 22:48 Varun Gupta <varung@uber.com> wrote:

>
> I did not get your question completely, with "snapshot files are mixed
> with files and backup files".
>
> When you call nodetool snapshot, it will create a directory with snapshot
> name if specified or current timestamp at
> /data/<keyspace>/<columnfamily>/backup/<snapshotname>. This directory
will
> have all sstables, metadata files and schema.cql (if using 3.0.9 or higher).
>
>
> On Thu, May 11, 2017 at 2:37 AM, Daniel Hölbling-Inzko <
> daniel.hoelbling-inzko@bitmovin.com> wrote:
>
>> Hi,
>> I am going through this guide to do backup/restore of cassandra data to a
>> new cluster:
>>
>> http://docs.datastax.com/en/cassandra/2.1/cassandra/operations/ops_backup_snapshot_restore_t.html#task_ds_cmf_11r_gk
>>
>> When creating a snapshot I get the snapshot files mixed in with the
>> normal data files and backup files, so it's all over the place and very
>> hard (especially with lots of tables per keyspace) to transfer ONLY the
>> snapshot.
>> (Mostly since there is a snapshot directory per table..)
>>
>> Am I missing something or is there some arcane shell command that filters
>> out only the snapshots?
>> Because this way it's much easier to just backup the whole data directory.
>>
>> greetings Daniel
>>
>
>

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