Dne 7.1.2016 v 20:31 Alan Jenkins napsal(a):
Hi I tried using Docker on my Fedora NAS box. It created a thin pool LV, which caused hard drive activity every ~10 seconds. dmeventd queries the thin pool every 10 seconds, and it causes a transaction commit in order to make sure the statistics are up to date. But transactions are already supposed to be committed after 1 second. (See Documentation/device-mapper/thin-provisioning.txt, "Updating on-disk metadata"). It seems like a simple case of "don't do that". The kernel already lets us avoid the commit. How about it (patch below)? If it seems reasonable, I can whip up a commit message for it.
Hi I believe it's already solved upstream in version 2.02.133 of lvm2 package with this commit: 81e9ab3156badecc6a64447708c4ae4886e3c244 Date: Thu Oct 22 12:36:25 2015 +0200 Which version of lvm2 are you using ? Regards Zdenek -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
