Re: Transitioning to incremental repair

2015-12-04 Thread Henrik Schröder
We are running 2.1.x and are currently looking into changing from STCS to LCS, as well as enabling incremental repairs. In what order should we do that? Should we enable incremental repairs first, let it run its course which would mark a lot of tables as repaired, and those marks would then carry

Re: Transitioning to incremental repair

2015-12-02 Thread Bryan Cheng
Ah Marcus, that looks very promising- unfortunately we have already switched back to full repairs and our test cluster has been re-purposed for other tasks atm. I will be sure to apply the patch/try a fixed version of Cassandra if we attempt to migrate to incremental repair again.

Re: Transitioning to incremental repair

2015-12-02 Thread Marcus Eriksson
Bryan, this should be improved with https://issues.apache.org/jira/browse/CASSANDRA-10768 - could you try it out? On Tue, Dec 1, 2015 at 10:58 PM, Bryan Cheng wrote: > Sorry if I misunderstood, but are you asking about the LCS case? > > Based on our experience, I would absolutely recommend you c

Re: Transitioning to incremental repair

2015-12-01 Thread Bryan Cheng
Sorry if I misunderstood, but are you asking about the LCS case? Based on our experience, I would absolutely recommend you continue with the migration procedure. Even if the compaction strategy is the same, the process of anticompaction is incredibly painful. We observed our test cluster running 2

Re: Transitioning to incremental repair

2015-12-01 Thread Marcus Eriksson
Yes, it should now be safe to just run a repair with -inc -par to migrate to incremental repairs BUT, if you currently use for example repair service in OpsCenter or Spotifys Cassandra reaper, you might still want to migrate the way it is documented as you will have to run a full repair to migrate

Transitioning to incremental repair

2015-12-01 Thread Sam Klock
Hi folks, A question like this was recently asked, but I don't think anyone ever supplied an unambiguous answer. We have a set of clusters currently using sequential repair, and we'd like to transition them to incremental repair. According to the documentation, this is a very manual (and lik