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
spreadshe
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
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 wee
Hey all,
So, the long and short of it is that Riak doesn't handle objects
larger than 2Mb very well at all. We try to be pretty up-front about
this in the documentation (for example[1]) be we're also aware that
sometimes you need to store big objects. Riak CS was actually created
to deal with thes
Hi,
I'd be interested in the answer to this too, isn't it inevitable that in the
underlying storage you will get compaction delays, you see the same in any key
value store, eg if you were pushing lots of small packets of data into
HBase/Cassandra etc... Eventually the system has to perform the
Hey Andy,
We had the same issue few days ago. We were getting timeouts when trying to
read a key from riak.
Also we were seeing in the logs a warning about reading/writing a large
object. In our case that object was first read from riak and after written
back. It was that big (17Mb) because of so
Hi all,
I've been experiencing stalls where riak won't return any data (queries
time out) with my riak cluster. Here are some basic details:
- 8 nodes
- riak 1.4.10 (upgraded from 1.4.6 -> 1.4.8 -> 1.4.10)
- leveldb backend
- n_val is 2
- allow_mult is false
- ec2 i2.2xlarge boxes (8 cores, 61gb
