Hi Greg, On 04/10/2013 06:39 PM, Gregory Farnum wrote: > Jim, > I took this patch as a base for setting up config options which people > can tune manually and have pushed those changes to wip-leveldb-config. I was out of the office unexpectedly for a few days, so I'm just now taking a look. > Thanks very much for figuring out how to set up the cache et al! No problem! > > For now I restructured quite a bit of the data ingestion, and I took > your defaults for the monitor on the write buffer, block size, and > compression, but I left the cache off. These also don't apply to the > OSDs at all. In order to enable more experimentation I do pass through > the options though: > OPTION(mon_ldb_write_buffer_size, OPT_U64, 32*1024*1024) // monitor's > leveldb write buffer size > OPTION(mon_ldb_cache_size, OPT_U64, 0) // monitor's leveldb cache size > OPTION(mon_ldb_block_size, OPT_U64, 4*1024*1024) // monitor's leveldb block size > OPTION(mon_ldb_bloom_size, OPT_INT, 0) // monitor's leveldb bloom bits per entry > OPTION(mon_ldb_max_open_files, OPT_INT, 0) // monitor's leveldb max open files > OPTION(mon_ldb_compression, OPT_BOOL, false) // monitor's leveldb uses > compression > (and similar ones for osd_ldb_*). > > If you have the opportunity to verify that these patches work for you > (in particular I'm wondering if the OSDs need any more tuning on their > end which was being masked by your global changes) that would be > wonderful. :) I'll be able to take these for a spin next Tuesday, and I'll definitely keep an eye open for any unexpected behavior on the OSDs. Sorry for the delay... I appreciate you taking a look at this, and fixing it up into something that's more appropriate. Thanks --Jim > Thanks, > -Greg > Software Engineer #42 @ http://inktank.com | http://ceph.com > > -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
