[DRBD-user] "PingAck timeout" in a dual active/passive configuration

Саша Александров shurrman at gmail.com
Thu Mar 6 11:33:54 CET 2014

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


Youssef,

Check your bonding mode!
It apperes that you loose packets, this can be because the mode is wrong or
MAC addresses wrong.

Best regards,
Alexandr A. Alexandrov


2014-03-06 0:38 GMT+04:00 Latrous, Youssef <YLatrous at broadviewnet.com>:

>  Hello,
>
>
>
> We are currently experiencing a weird “PingAck” timeout on a system with
> two nodes, and an active/passive configuration. The two nodes are using a
> cross-cabled connection in a bonded two Giga NIC cards. This network never
> goes down and used only for DRDB and CRM cluster data exchange. It’s barely
> used (very light load). We are running SLES 11 SP2, DRBD release 8.4.2, and
> pacemaker 1.1.7.
>
>
>
> We couldn’t find a DRBD configuration option to setup the number of
> retries before giving up.
>
>
>
> Our concern is that we do not understand how a PingAck can timeout over
> such a reliable media? Any insight into this would be much appreciated.
>
>
>
> On the same note, are there any guards against it? Any best practices
> (setups) we could use to avoid this situation?
>
>
>
> Thanks for any help,
>
>
>
> Youssef
>
>
>
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> drbd-user mailing list
> drbd-user at lists.linbit.com
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>
>


-- 
С уважением, ААА.
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