Hi Léo,
Major compactions in LCS (and minor as well) are very slow indeed and I'm
afraid there's not much you can do to speed things up. There are lots of
synchronized sections in the LCS code and it has to do a lot of comparisons
between sstables to make sure a partition won't end up in two
On Thu, Jun 13, 2019 at 2:44 PM Oleksandr Shulgin <
oleksandr.shul...@zalando.de> wrote:
> On Thu, Jun 13, 2019 at 2:07 PM Léo FERLIN SUTTON
> wrote:
>
>>
>> Overall we are talking about a 1.08TB table, using LCS.
>>
>> SSTable count: 1047
>>> SSTables in each level: [15/4, 10, 103/100, 918, 0,
On Thu, Jun 13, 2019 at 2:07 PM Léo FERLIN SUTTON
wrote:
>
> Overall we are talking about a 1.08TB table, using LCS.
>
> SSTable count: 1047
>> SSTables in each level: [15/4, 10, 103/100, 918, 0, 0, 0, 0, 0]
>
> SSTable Compression Ratio: 0.5192269874287099
>
> Number of partitions (estimate):
On Thu, Jun 13, 2019 at 12:09 PM Oleksandr Shulgin <
oleksandr.shul...@zalando.de> wrote:
> On Thu, Jun 13, 2019 at 11:28 AM Léo FERLIN SUTTON
> wrote:
>
>>
>> ## Cassandra configuration :
>> 4 concurrent_compactors
>> Current compaction throughput: 150 MB/s
>> Concurrent reads/write are both
On Thu, Jun 13, 2019 at 11:28 AM Léo FERLIN SUTTON
wrote:
>
> ## Cassandra configuration :
> 4 concurrent_compactors
> Current compaction throughput: 150 MB/s
> Concurrent reads/write are both set to 128.
>
> I have also temporarily stopped every repair operations.
>
> Any ideas about how I can
I am currently noticing very very slow compactions on my cluster and
wondering if there is any way to speed things up.
Right now I have this compaction currently running :
60c1cfc0-8da7-11e9-bc08-3546c703a280Compaction keyspace1
> table1 8.77 GB 1.71 TB bytes 0.50%
