Are we talking about http://docs.basho.com/riak/1.3.1/cookbooks/Repairing-KV-Indexes/ ?
and if yes.. is this also doing a repair if data is missing? So after executing the "repair" on one node.. will it have afterwards: * all keys it should have (like if AAE is fixing stuff through Read Repair) * all 2i indices it should have (like the documentation suggest) So does it mean a "compaction" is triggered by doing: * remove big sst files * trigger this REPAIR type "Repairing-KV-Indexes"? will this automatically fix the MANIFESTS file? Cheers Simon On Thu, 26 Sep 2013 12:53:40 +0200 Simon Effenberg <seffenb...@team.mobile.de> wrote: > Thanks Matthew, > > but one thing I didn't get. If I delete a sst file.. should I delete > (by hand) the MANIFEST file to trigger a repair or is it done > automatically within Riak if it detects that a sst file which is > referenced in the MANIFEST is missing? > > Cheers > Simon > > On Wed, 25 Sep 2013 09:58:51 -0400 > Matthew Von-Maszewski <matth...@basho.com> wrote: > > > Simon, > > > > I want to point out again that I do not like my answer … but currently lack > > a better one. The manual delete of .sst files should be treated as a last > > resort. Only do it if you really, really cannot wait for normal > > compactions to purge the old data. > > > > To your question: > > > > leveldb keeps a list of .sst table files in its MANIFEST file. If the .sst > > table files are deleted manually, the MANIFEST is no longer accurate. An > > inaccurate MANIFEST file leads to leveldb internal errors and sometimes > > infinite loops. > > > > The repair process erases the current MANIFEST file and builds a new one > > based upon the files actually found on disk. > > > > WARNING: repair takes a really, really long time in Riak 1.2.0 … it gets > > better in 1.2.1 … and improves to something quite reasonable by 1.3 and 1.4. > > > > A discussion about repair can be found here: > > > > https://github.com/basho/leveldb/wiki/repair-notes > > > > Matthew > > > > > > On Sep 25, 2013, at 9:38 AM, Simon Effenberg <seffenb...@team.mobile.de> > > wrote: > > > > > On Wed, 25 Sep 2013 09:15:33 -0400 > > > Matthew Von-Maszewski <matth...@basho.com> wrote: > > > > > >> - run Riak repair on the vnode so that leveldb can create a MANIFEST > > >> that matches the files remaining. > > > > > > what do you mean with this? Wait for AAE? Request each key to trigger > > > read repair or do I miss something? > > > > > > We are in a similar situation.. only sst_4 exists in our situation but > > > we also delete old stuff regularly.. > > > > > > Cheers > > > Simon > > > > > > _______________________________________________ > > > riak-users mailing list > > > riak-users@lists.basho.com > > > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com > > > > > -- > Simon Effenberg | Site Ops Engineer | mobile.international GmbH > Fon: + 49-(0)30-8109 - 7173 > Fax: + 49-(0)30-8109 - 7131 > > Mail: seffenb...@team.mobile.de > Web: www.mobile.de > > Marktplatz 1 | 14532 Europarc Dreilinden | Germany > > > Geschäftsführer: Malte Krüger > HRB Nr.: 18517 P, Amtsgericht Potsdam > Sitz der Gesellschaft: Kleinmachnow > > _______________________________________________ > riak-users mailing list > riak-users@lists.basho.com > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com -- Simon Effenberg | Site Ops Engineer | mobile.international GmbH Fon: + 49-(0)30-8109 - 7173 Fax: + 49-(0)30-8109 - 7131 Mail: seffenb...@team.mobile.de Web: www.mobile.de Marktplatz 1 | 14532 Europarc Dreilinden | Germany Geschäftsführer: Malte Krüger HRB Nr.: 18517 P, Amtsgericht Potsdam Sitz der Gesellschaft: Kleinmachnow _______________________________________________ riak-users mailing list riak-users@lists.basho.com http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
