Thanks for confirming Magnus.
Hopefully all the disk-usage alerts will now be a thing of the past!
Sujay
On Tue, Sep 15, 2015 at 2:59 PM, Magnus Kessler <mkess...@basho.com> wrote:
> On 11 September 2015 at 11:45, Sujay Mansingh <su...@edited.com> wrote:
>
>> On our riak cluster machines, we have a separate disk which stores all
>> the bitcask data (in /data)
>>
>> This is so that we can have a (relatively) small disk for the OS, and
>> have a big disk for /data.
>>
>> $ df -h / /data
>> Filesystem Size Used Avail Use% Mounted on
>> /dev/root 20G 11G 7.9G 57% /
>> /dev/md3 3.6T 277G 3.1T 9% /data
>>
>> However, especially more so lately, we see that the /var/lib/riak
>> directory often becomes very large.
>>
>> $ pwd
>> /var/lib/riak
>> $ du -hcs *
>> 9.3G anti_entropy
>> 1.1M kv_vnode
>> 104K ring
>> 9.3G total
>>
>> So we see that the anti_entropy directory takes up 9.3GB (almost half of
>> /). (Sometimes it balloons to 18GB, almost taking up the disk. We then
>> restart riak to get the disk usage down.)
>>
>> I want to move that directory off /.
>>
>> Here are the steps I want to perform on each node.
>>
>> 1. Stop riak
>> 2. Move /data to /riak/data (I will have to change the name of the
>> mount point)
>> 3. Move /var/lib/riak/anti_entropy to /riak/anti_entropy
>> 4. Change the following items in app.config
>> - Change {anti_entropy_data_dir, "/var/lib/riak/anti_entropy"}, to
>> {anti_entropy_data_dir,
>> "/riak/anti_entropy"},
>> - Change {data_root, "/data"} to {data_root, "/riak/data"}
>> 5. Start riak
>>
>> I just wanted to confirm that if I move the files and change the config,
>> riak will simply start up and continue as before.
>>
>>
> Hi Sujay,
>
> The steps you outlined are going to work fine. Please make sure that the
> newly created '/riak' directory has the correct file permissions for the
> 'riak' user.
>
> Regards,
>
> Magnus
>
>
>> Thanks!
>>
>> Sujay
>>
>>
>> _______________________________________________
>> riak-users mailing list
>> riak-users@lists.basho.com
>> http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
>>
>>
>
>
> --
> Magnus Kessler
> Client Services Engineer @ Basho
>
> Registered Office - 8 Lincoln’s Inn Fields London WC2A 3BP Reg 07970431
>
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>
>
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