Hi Luke, Your prediction was spot on.
Today, about 2 weeks after setting the parameters from my earlier email, we saw riak nodes start to run out of memory and fail. I have to say, it was a great 2 weeks though. I've adjusted the parameters again, this time paying attention the linked spreadsheet. Thanks for your advice, Andy On Wed, Feb 11, 2015 at 6:36 PM, Luke Bakken <lbak...@basho.com> wrote: > Hi Andy, > > I'd like to strongly recommend using the spreadsheet linked to by this > document: > > http://docs.basho.com/riak/1.4.12/ops/advanced/backends/leveldb/ > > Spreadsheet: > https://docs.google.com/spreadsheet/ccc?key=0AnW_U8Qe8NdYdGk2V3Qza0VRNkxyRFNGUVVCV0c3V3c&usp=sharing#gid=0 > > The reason I bring it up is that the parameters you list will most > certainly exhaust RAM at some point. > > -- > Luke Bakken > Engineer > lbak...@basho.com > > On Wed, Feb 11, 2015 at 11:47 AM, Andy Pellett <a...@embed.ly> wrote: > > Hi All, > > > > I ran across this page: > > > > http://docs.basho.com/riak/1.0.0/tutorials/choosing-a-backend/LevelDB/ > > > > and ended up tuning the following parameters: > > > > max_open_files 16384 > > write_buffer_size_min 1gb > > write_buffer_size_max 2gb > > cache_size 15gb > > block_size 262144 > > > > Since making these changes about a week ago, I've seen considerably fewer > > compactions, and no stalls. Hoping this holds up. > > > > Andy >
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