which kernel ?
On 10/21/2015 06:53 AM, tomaz kosir wrote:
Hi All,
cst has ovm crash 2 weeks ago due to network outage. This has been
somehow fixed now.
Now we are searching for some hints how to prevent such issues in the
feature.
What we are thinking about is to increase o2cb timeouts. If we
increase those timeouts to ie. 1h, does this mean we'll have 1hour to
fix network outage? Disk are connected directly, we have no issues
with that during network outage.
There is interesting note Increase OC2B Cluster Heartbeat Timeout on
Exalogic Virtual (Doc ID 1995593.1):
A detailed step-by-step procedure is provided in this document to
increase the O2CB cluster heartbeat timeout from 5 min to a very
large value of 24 hr. The increased timeout effectively prevents a
catastrophic reboot of all compute nodes on an Exalogic rack in a
virtual configuration due to fencing, in the event of ZFS taking a
long time to complete a takeover.
If O2CB_HEARTBEAT_THRESHOLD and O2CB_IDLE_TIMEOUT_MS are huge, OVS
servers will survive long network outage.
What is much better then to get node crash which couse a lot of work
to setup cluster back to working state.
Many thanks,
Tomaž
--
<http://www.oracle.com> Tomaž Košir | Principal Technical Account Manager
Phone: +386 1 5888 876 <tel:+386%201%205888%20876> | Mobile: +386 41
785 517 <tel:+386%2041%20785%20517>
Oracle Advanced Customer Support
ORACLE Slovenia | Dunajska 156 | 1000 Ljubljana
<http://www.oracle.com/commitment> Oracle is committed to developing
practices and products that help protect the environment
_______________________________________________
Ocfs2-users mailing list
Ocfs2-users@oss.oracle.com
https://oss.oracle.com/mailman/listinfo/ocfs2-users
