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Restore clusdb file from other cluster node and then start cluster service. First stop cluster service on active node. Copy clustdb file from C:\Windows\cluster folder and copy on passive node. Start cluster services on passive node and then on active node.


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The ocf:pacemaker:pingd resource was designed precisely to failover a node over upon loss of connectivity. You may find a very brief example of this on the cluster labs wiki here: http://clusterlabs.org/wiki/Example_configurations#Set_up_pingd Somewhat unrelated, but I have seen issues in the past with using ifconfig down to test loss of connectivity. I ...


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Because drupal relies heavily on file_exists statements which can not be cached in APC and causes glusterfs to check with the quorum of servers to see if the file exists. So crazy horrible performance.


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A possible way is create a jar file with the properties file, you can deploy this jar in the servers groups that you want and in the application add the dependency to this jar. For example create a jar called config.jar put the properties files (eg settings.properties) then add the dependency in MANIFEST.MF of your application like: Dependencies: ...


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1- Is my assumption correct that on event 3, the returning node can be automatically joint to the cluster? Yes, this can be done. DRBD should not go Primary on it's own unless told to in the resource configuration; check that the 'startup { become-primary-on }' definition is not set in the resource configs. 2- If it can be done, please tell how. ...


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In Domain cluster, your properties really should be maintained in domain.xml To have the properties NOT on the JVM command-line, and updated immediately, you need to make sure that you are using boot-time=false on each system-property.


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Rebooting the node ensures that the node is working properly before the next job is assigned to it. Also, when you run a node out of memory and start swapping it will slow down and may become unresponsive. In this case, they may be using something like IPMI to power cycle the node.


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I prefer software RAID to hardware RAID on single servers, because hardware RAID forces the admin to take precautions against hardware failure of the RAID controller. This usually requires stocking and regularly testing spare RAID controllers. In your setup, though, I assume, that redundancy is on the node level, not on the disk level. If a node fails for ...


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You haven't mentioned what you're using for storage, but if you're using a SAN you could also use SAN replication with your SQL cluster. If you don't already have the various pieces for that, however, Always On might be a better option. (Like Jim B suggested.)


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Always on would let you have separate storage for each node. (http://msdn.microsoft.com/en-us/library/ff877884(v=sql.110).aspx) However this gets trickier in win10 with the new storage HA features.


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I haven't tried reproducing your configuration but when I looked at it this morning, it looks like the problem is simply a missing space and possibly the ProxyPassReverse not matching the ProxyPass (however the later wouldn't give you a 404 I think). ProxyPass / balancer://testcluster/stickysession=JSESSIONID|jsessionid ProxyPassReverse / ...


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You'll need to run a routing layer (HAproxy should work fine) that is directing traffic based on HTTP host header. Run this routing container on a few machines bound to 80/443 as desired. Add A records for each of your services that point to these few machines. Your LB is now highly available. Next, set up your HAproxy routing rules to consume the location ...



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