Now I've managed to basically bring my system to its knees. My rsync script that takes weeks ends up bringing the system to a crawl long before it can ever finish. I end up with 100% of the CPU used up by the following as shown by top
btrfs-endio-wri btrfs-delayed-m btrfs-transacti btrfs-delalloc- btrfs-endio-met Now, I've got a bunch of snapshots, and the server is a backup server that backs up all the machines on the network. It's using -o compress. I've got a 6TB array of 2 3TB drives, that is now about 85% full. There's lots of small files. I tried to add another drive, but it won't ever finish a rebalance. Df shows all 9TB as part of the array, but only shows available space as if the array was 6TB. An attempt at copying all the data to a second array effectively brings the computer to its knees running the threads explained above. The server never really recovers until a hard reboot and can't ever finish running a backup. Are there any mount options I should change? I need the compression and snapshots to have enough space. -BJ -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
