BO Explorer Master Server is stopping abruptly (in the cycle of 15 MINS)

[Former Member]

Hello,

We are currently on  BO Explorer version "SAP BusinessObjects Explorer 4.1 SP4 Patch 9".

I am observer from past few day BO Explorer Master Server is stopping abruptly (in the cycle of 15 MINS).

In the logs i am seeing the below error

"Stopping this Explorer Master server because Explorer Master servers cannot cluster together. It may be due to either IPv6 or 'master.cluster.name' Explorer application property variable not set or ports from 5701 to 57xx are blocked (where 'xx' is the number of Explorer Master servers and '5701' is the default value of 'master.cluster.multicast.port' property) or the network does not support multicast or new cluster running. (Number of running enabled Explorer Master servers in cluster: 2, Number of Hazelcast cluster members: 1) |B691684620F54AF8B715C313F0DA1F440| "

Incase any one has come across this issue can u please provide me what might be the problem and solution if possible.

Any help is appreciated.

Regards

Pramod

[Former Member]

Hi Pramod,

You need to have multi-casting enabled in BO environment to function multiple Explorer Master servers.

When using multiple master servers, you can ensure that the master servers can communicate between themselves by:

• Verify that multicast is authorized in your net-work. (You need to check with your network team for this)

• Check that your firewall is not blocking the ports from 5701 to 570x, where ‘x’ is the number of Explorer master servers.

• Disable IPv6 on the system that hosts Explorer services. Only IP V5 is supported for explorer servers.

• Set the 'master.cluster.name' Explorer application property variable in CMC.

. Set the parameters as mentioned by Jawahar.

Regards,

Mithilesh

[Former Member]

Hi Mithilesh/Jawar,

We tired all the options mentioned by u guys but still it is not working the Master server is coming down exactly in 15 minutes.

Multicast in enabled in our BO env.

Firewall is not blocked between the ports

IPv6 is disabled.

Set the parameter as mentioned by Jawar.

Another thing is it is happening only for the Master server. Even we created a new Master server 1 and disabling the old one,even that fails exactly in 15 min. This issue is happening from last week before that everything was working absolutely fine.

Network guy says no issues from his end.Any advises appreciated.

Pramod

[former_member185603]

There is known issue with SP5 version Master server goes down intermittently, not exactly 15 minutes. Not sure if it applies to your version as well. But we have seen in our environment with SP5.

Please open an incident with SAP support.

[Former Member]

Hi Pramod,

Refer the KBA 1906591 and see if it helps.

Also ensure that, Explorer storage is not stored on network share.

Make a default location for  explorer storage. Generally the location is <Install Dir>\SAP BusinessObjects\ SAP BusinessObjects 4.0/Data/Polestar

If this is still failing, you need to traces Explorer Master server and raise this to SAP support.

Regards,

Mithilesh

[former_member185603]

You need to add below paramters to CMC -> Applications -> Explorer

master.cluster.name=<Your cluster name>

master.cluster.multicast.group=224.0.0.1

master.cluster.multicast.port=54327