Hi, This is the release candidate of an important drbd-9 update. As soon as it is final it will be a strongly recommended update for all uers. It contains serve fixes for for cases with multiple diskless nodes. Without these fixes you can even see wrong data read back from DRBD under complicated failure cases.
Please help testing this release candidate. If all goes smooth I will tag 9.0.13 (final) on April 13. 9.0.13-0rc1 (api:genl2/proto:86-113/transport:14) -------- * abort a resync if a resync source becomes weakly and the sync target is a neighbor of the primary; the lack of doing so was a possible source of data corruption * fix UUID handling with multiple diskless nodes; If the primary role is moved between them, and no write happens before the the storage nodes are disconnect; before this fix the storage nodes would outdate themselves upon reconnect * When a data-set gets into contact (attach or connect) with an all diskless cluster with a primary and the exposed UUID does not match the arriving data-set, make sure to either set it to "Consistent" or to reject the attach * correctly handle when a node that was marked as intentional diskless should get a disk; allocate bitmap slots when the --bitmap=no flag gets removed; reject peers to attach if they are marked with --bitmap=no * fix outdating of weakly connected nodes; It was broken when an already primary node joins the cluster at the other end * made returning from Ahead to SyncSource more reliable; the old code may have missed the event if the write to the local backend was still pending when the barrier-ack comes in * fix a hard to trigger deadlock in the receiver; it triggered sometimes on the Secondary if a resync was going on and writes on the primary happen to the same area while the connection is interrupted; it caused the device to be stuck in "NetworkFailure" state * fix online resize in the presence of two or more diskless nodes * fix online add of volumes to diskless nodes when it already has established connections * Set the SO_KEEPALIVE socket option on data sockets. Can be important if long lived DRBD connections go through a firewall with connection tracking * automatically solve a specific split brain when quorum is enabled and a node does no IO between loosing connections to other nodes * Compat: Drop support for kernels older 2.6.32 and distros older than RHEL6; Added support for kernels up to v4.15.x http://www.linbit.com/downloads/drbd/9.0/drbd-9.0.13-0rc1.tar.gz https://github.com/LINBIT/drbd-9.0/releases/tag/drbd-9.0.13-0rc1 best regards, Phil -- LINBIT | Keeping The Digital World Running DRBD® and LINBIT® are registered trademarks of LINBIT, Austria. _______________________________________________ drbd-user mailing list email@example.com http://lists.linbit.com/mailman/listinfo/drbd-user