[DRBD-user] DRBD spontaneously loses connection

Lars Ellenberg lars.ellenberg at linbit.com
Thu Dec 10 14:05:59 CET 2015

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.

On Sat, Dec 05, 2015 at 07:17:22PM -0800, Adam Randall wrote:
> Try setting ping-timeout to 5

Which would be the default.
But yes, because of the message "PingAck did not arrive in time",
at least this may be the right tunable.

But the real mis-configuration is that you apparently try to run
dual-primary without any fencing at all.

Without fencing, you get to keep the pieces.

Without fencing, any replication link hickup results in data divergence,
aka a "split brain" scenario. You really want to avoid that.

: Lars Ellenberg
: http://www.LINBIT.com | Your Way to High Availability
: DRBD, Linux-HA  and  Pacemaker support and consulting

DRBD® and LINBIT® are registered trademarks of LINBIT, Austria.
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