[ClusterLabs] Howto use ocf:heartbeat:nginx check level > 0

user.clusterlabs.org at siimnet.dk user.clusterlabs.org at siimnet.dk
Sun Nov 8 05:46:42 EST 2015


> On 8. nov. 2015, at 10.26, user.clusterlabs.org at siimnet.dk wrote:
> 
> Setting up my first pacemaker cluster, I’m trying to grasp howto make ocf:heartbeat:nginx monitor with check levels > 0.
> 
> Got this so far:
> 
> [root at afnA ~]# pcs resource
>  Resource Group: afnGroup
>      afnVIP     (ocf::heartbeat:IPaddr2):       Started afnA 
>      afnNGinx   (ocf::heartbeat:nginx): Started afnA 
> 
> [root at afnA ~]# pcs resource show afnNGinx
>  Resource: afnNGinx (class=ocf provider=heartbeat type=nginx)
>   Attributes: configfile=/opt/imail/nginx/conf/nginx.conf port=8080 httpd=/opt/imail/nginx/sbin/nginx options="-p /opt/imail/nginx" status10url=/ping status10regex=".+ is alive\." 
>   Operations: start interval=0s timeout=60s (afnNGinx-start-interval-0s)
>               stop interval=0s timeout=60s (afnNGinx-stop-interval-0s)
>               monitor interval=10s timeout=20s (afnNGinx-monitor-interval-10s)
>               monitor interval=60s timeout=20s (afnNGinx-monitor-interval-60s)
> [root at afnA ~]# 
> 
> but I cant verify that pacemaker RA ever calls http://localhost:8080/ping <http://localhost:8080/ping>, why not?
> 
> Any pointers to info source(s) for better understanding RA configuration and maybe specially check levels?

Found this: http://clusterlabs.org/doc/en-US/Pacemaker/1.0/html/Pacemaker_Explained/s-operation-monitor-multiple.html <http://clusterlabs.org/doc/en-US/Pacemaker/1.0/html/Pacemaker_Explained/s-operation-monitor-multiple.html>

This seemed to work much better:

[root at afnA ~]# pcs resource show afnNGinx
 Resource: afnNGinx (class=ocf provider=heartbeat type=nginx)
  Attributes: configfile=/opt/imail/nginx/conf/nginx.conf port=8080 httpd=/opt/imail/nginx/sbin/nginx options="-p /opt/imail/nginx" status10url=http://localhost:8080/ping status10regex="mss[0-9] is alive\." 
  Meta Attrs: target-role=Started 
  Operations: start interval=0s timeout=60s (afnNGinx-start-interval-0s)
              stop interval=0s timeout=60s (afnNGinx-stop-interval-0s)
              monitor interval=10s timeout=10s (afnNGinx-monitor-interval-10s)
              monitor interval=120s timeout=30s OCF_CHECK_LEVEL=10 (afnNGinx-monitor-interval-120s)

=>

127.0.0.1 - - [08/Nov/2015:11:34:25 +0100] "GET /ping HTTP/1.1" 200 16 "-" "curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.19.1 Basic ECC zlib/1.2.3 libidn/1.18 libssh2/1.4.2"
127.0.0.1 - - [08/Nov/2015:11:36:25 +0100] "GET /ping HTTP/1.1" 200 16 "-" "curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.19.1 Basic ECC zlib/1.2.3 libidn/1.18 libssh2/1.4.2"
127.0.0.1 - - [08/Nov/2015:11:38:25 +0100] "GET /ping HTTP/1.1" 200 16 "-" "curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.19.1 Basic ECC zlib/1.2.3 libidn/1.18 libssh2/1.4.2"
127.0.0.1 - - [08/Nov/2015:11:40:25 +0100] "GET /ping HTTP/1.1" 200 16 "-" "curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.19.1 Basic ECC zlib/1.2.3 libidn/1.18 libssh2/1.4.2"


[root at afnA]# pcs --version
0.9.139

https://www.mankier.com/8/pcs <https://www.mankier.com/8/pcs> seems to indicate a debug-monitor command only my pcs version doesn’t seem to support this, might it only be in a later version, also I can seem to find ocf-tester from CentOS 6 repository, where might I find ocf-tester rpm?

/Steffen
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