If 3 of the 5 servers were to shutdown and the files on those servers were to become corrupted, you would assuredly have data loss.
Do you have your disks behind a raid controller with non-volatile cache (aka write back cache)? Brian > On Oct 21, 2015, at 9:49 AM, Adrian Hamza <[email protected]> wrote: > > Hi, > What's your opinion on running Zookeeper with file system journaling disabled > on an EXT4 file system? > We need every ounce of performance out of it, and I believe given the > Zookeeper implementation (operations are logged, majority quorum is required > for succeeding, checkpoints are swapped only after being complete) I feel > that EXT4 journaling is redundant. Disabling EXT4 journaling could improve > performance. We have 5 servers in a Zookeeper ensemble. Am I missing > something or this should be fine? > Thank you, > Adrian >
