Questions tagged [linux-ha]
27 questions
1
vote
1 answer
Pacemaker location constraints on resources apparently not obeyed
I have a Pacemaker setup with two STONITH resources. They have location constraints that crm configure show lists as follows:
location loc_stonith_node1 stonith_node1 rule -inf: #id eq node1
location loc_stonith_node2 stonith_node2 rule -inf: #id eq…
rookie09
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1
vote
2 answers
Correct use of Pacemaker's ocf-tester with OCF resource agents
I have got a setup with DRBD, Corosync, and Pacemaker in which Pacemaker should mount a file system atop a DRBD block device on different cluster nodes, depending on nodes' availabilies. The setup is not yet fully working, therefore I try testing…
rookie09
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- 17
1
vote
2 answers
Does corosync 1.4 support public IP's ?
I am creating a cloud based cluster so for now am using uni cast to connect to other pacemaker/corosync nodes.I was able to create a cluster using private IP's. To create a cross region cluster , I wanted to use public IP's. I tried using a generic…
nwarriorch
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1
vote
1 answer
could corosync can support unicast heartbeat mode?
could corosync can support unicast heartbeat mode?
from another thread in serverfault, some guy raised below corosync conf:
totem {
version: 2
secauth: off
interface {
member {
…
Emre He
- 121
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1
vote
1 answer
could heartbeat v3 monitor service/resource status without pacemaker?
I am trying to setup a HA system based on CentOS, I want to use heartbeat v3 for the "heartbeat" mechanism, resource start/stop, looks heartbeat can get it done.
But about the resource status, heartbeat cannot monitor it, for example httpd, we…
Emre He
- 121
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- 4
0
votes
0 answers
pacemaker IP and MAC failover
I am setting up a system with two redundant servers, where one is an active one. If the active server goes down or is not reachable the other server has to become active. All the services are ready so the only required action is IP failover.
I tried…
ozimki
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0
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2 answers
crm status : 0 nodes and 0 resources configured
I've configure corosync and then I got these issue 0 nodes and 0 resources configured.
[root@sitampan2 verdana]# crm status
Stack: unknown
Current DC: NONE
Last updated: Thu Jun 16 15:15:40 2016 Last change: Wed Jun 15 14:25:43 2016 by root…
Adi
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0
votes
1 answer
Which technique should be chosen for IP failover with manual control
I have the following setup, Linux stack, with front-end running nginx proxy and static assets and back-end running Ruby on Rails and MySQL in master-master replication:
Primary site: front-end.a, back-end.a
Secondary site: front-end.b, back-end.b
A…
Barry Kelly
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0
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1 answer
can you give me feedback on an HA architecture using linux-ha and pacemaker?
I am trying to come up with an architecture for achieving HA on one of our services (in-house service, single tcp connection for all requests). Just started reading on linux-ha and pacemaker, and i'd like to know if the following approach makes any…
Shlomi
- 103
- 2
0
votes
1 answer
Linux-HA Pacemaker.. NFS Resource starting "unmanaged"
My cluster I've been working on just starting acting up out of no where... It looks like I'm having an issue with the exportfs resource.
Any ideas on how to troubleshoot this? I can find nothing for a "-2" return code
============
Last updated: Mon…
Matthew
- 204
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0
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3 answers
change a file at a time located in different location
Iam very new to linux.
suppose i have two file with same name fstab one file is located in /etc and the other is located in /root/
If i make a change in /etc/fstab file the changes has to reflect in /root/fstab .
Is there any command to do…
user58513
-1
votes
1 answer
Active node stops resources when pasive node is shutdown
2 nodes, active/pasive. 2 resources, a virtual ip, openLdap, and the nfs mount where openldap saves the data.
When both nodes are up, things worked fine. You could move resources away and put the active in stanby. But when i rebooted the passive…
Wakaru44
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