Hello ActiveMQ users, We have two hosts in each of our ActiveMQ v5.16.x clusters.
They both NFS mount the following at boot time via /etc/fstab /opt/local/apache-activemq-5.16.0/data/kahadb /opt/local/apache-activemq-5.16.0/data/amq-prod-cluster The NFS mounts are provided by an EMC Isilon Scaled Out NAS. When they do maintenace on the Isilon, they reboot one of the nodes at a time. All too often this causes outages of our amq hosts. So, we stop activemq.service on the broker in slave mode before the Isilon maintenace, but still sometimes the amq nodes lose the NFS mounts. Are there recommended NFS mount parameters? Can kahadb be auto mounted? Is SMB an option? Here are the amq mount parameters: [kxn2@amq-p01 ~]$ cat /etc/fstab |grep nomad nomad-nfs.blue.psu.edu:/activemq_production /opt/local/activemq/data/kahadb nfs rw,nosuid 0 0 nomad-nfs.blue.psu.edu:/activemq_production /opt/local/activemq/data/amq-prod-cluster nfs rw,nosuid 0 0 [kxn2@amq-p01 ~]$ sudo mount | grep nomad nomad-nfs.blue.psu.edu:/activemq_production on /opt/local/apache-activemq-5.16.0/data/kahadb type nfs4 (rw,nosuid,relatime,vers=4.0,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,clientaddr=172.24.62.22,local_lock=none,addr=10.136.49.89) nomad-nfs.blue.psu.edu:/activemq_production on /opt/local/apache-activemq-5.16.0/data/amq-prod-cluster type nfs4 (rw,nosuid,relatime,vers=4.0,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,clientaddr=172.24.62.22,local_lock=none,addr=10.136.49.89) Thanks in advanced --- Karl Nordström Systems Administrator Penn State IT | Application Platforms
