I disable the disk cache of RAID controller, unfortunately it still lost some data.
2011/6/1 Peter Schuller <firstname.lastname@example.org>
> 1). set commitlog sync in batch mode and the sync batch window in 0 msHow sure are you that the system is honoring fsync() properly,
> 2). one client wrote random keys in infinite loop with consistency level
> QUORUM and record the keys in file after the insert() method return normally
> 3). unplug one server (node A) power cord
> 4). restart the server and cassandra service
> 5). read the key list generated in step 2) with consistency level ONE
including flushing any caches on underlying drives? Or is this with
battery backed caching RAID controllers?
/ Peter Schuller
by Preston Chang