Hi @list, I'm trying to upgrade our Riak cluster from 1.3.1 to 1.4.2 .. after upgrading the first node (out of 12) this node seems to do many merges. the sst_* directories changes in size "rapidly" and the node is having a disk utilization of 100% all the time.
I know that there is something like that: "The first execution of 1.4.0 leveldb using a 1.3.x or 1.2.x dataset will initiate an automatic conversion that could pause the startup of each node by 3 to 7 minutes. The leveldb data in "level #1" is being adjusted such that "level #1" can operate as an overlapped data level instead of as a sorted data level. The conversion is simply the reduction of the number of files in "level #1" to being less than eight via normal compaction of data from "level #1" into "level #2". This is a one time conversion." but it looks much more invasive than explained here or doesn't have to do anything with the (probably seen) merges. Is this "normal" behavior or could I do anything about it? At the moment I'm stucked with the upgrade procedure because this high IO load would probably lead to high response times. Also we have a lot of data (per node ~950 GB). Cheers Simon _______________________________________________ riak-users mailing list riak-users@lists.basho.com http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
