Thanks Matthew & Luca Re: global expiry - will that option retroactively remove objects? That is remove objects that became "unneeded" before the option was set ? Same question w.r.t delete_mode
Re: Map / Reduce - I am not sure the delete would remove the tombstone unless I set the delete_mode to immediate AND there are no copies on non-primary nodes. Or am I mistaken ? On Fri, Dec 30, 2016 at 10:11 AM, Luca Favatella < luca.favate...@erlang-solutions.com> wrote: > On 30 December 2016 at 15:06, Matthew Von-Maszewski <matth...@basho.com> > wrote: > > Greetings, > > > > I am not able to answer your tombstone questions. That question needs a > > better expert. > > > > Just wanted to point out that Riak now has global expiry in both the > leveldb > > and bitcask backends. That might be a quicker solution for your frequent > > delete operations: > > > > http://basho.com/products/riak-kv/global-object-expiration/ > > > > Technical details for the leveldb expiry are found here: > > https://github.com/basho/leveldb/wiki/mv-expiry > > > > Matthew > > > > On Dec 30, 2016, at 9:55 AM, Arun Rajagopalan < > arun.v.rajagopa...@gmail.com> > > wrote: > > > > Hello Riakers > > > > I wonder if there is anyway to delete all tombstones that were left > behind > > when delete_mode was set to 'keep' > > Hi Arun, > > Brute-force rate-limited map-reduce custom application code looking > for `X-Riak-Deleted` in object metadata and then deleting? Refs: > * http://docs.basho.com/riak/kv/2.2.0/developing/app-guide/ > advanced-mapreduce/#map-phase > * https://github.com/basho/basho_docs/blob/6b2f42a7243bfded737bd62eed12c4 > 90376c67e2/content/riak/kv/2.2.0/developing/app-guide/ > advanced-mapreduce.md#map-phase > > Interested to hear if you come up with a better way though. > > > > Also how do I estimate how much space the tombstones take ? We have a > ton of > > large scale and frequent delete operations and I suspect some space is > used > > by Tombstones. I would like to find out if it is significant enough to > > warrant some cleanup. > > I understand this is a separate question - I am not sure about the answer. > > > > If it does, how do I remove them? > > I believe I proposed an answer above. > > > Regards > Luca >
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