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Using Boolean Operators
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Configure Jgroups to use TCP in a horizontally-scaled environment
This section explains how to switch an existing horizontally-scaled environment from UDP to TCP, and how to configure a new horizontally-scaled environment to use TCP.
How to switch an existing horizontally-scaled environment from UDP to TCP
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Add the following command to the beginning of the sm.cfg file on the Primary Host:
sm -GossipRouter -Gossiprouterport:<value>Note Make sure that you select an unused port as the value of the Gossiprouterport parameter. Additionally, you must add this command to the beginning of the sm.cfg file so that the GossipRouter starts before any other Service Manager processes.
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Remove the following initialization parameters from the sm.ini file for each host:
groupmcastaddress:<value>groupport:<value>
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Add the following initialization parameters to the sm.ini file for each host:
jgroupstcp:<value>GossipRouterhosts:<value>
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Optional: Add the following initialization parameters to the sm.ini file for each host:
grouptcpbindport:<value>asyncrefreshlbinterval:<value>grouptcpjointimeout:<value>
How to configure a new horizontally-scaled environment to use TCP
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Add the following commands to the sm.cfg file on the Primary Host:
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sm –GossipRouter -Gossiprouterport:<value>Note Make sure that you select an unused port as the value of the Gossiprouterport parameter. Additionally, you must add this command to the beginning of the sm.cfg file so that the GossipRouter starts before any other Service Manager processes.
sm -loadBalancer -httpPort:<value>sm -que:irsm -httpPort:<value> -httpsPort:<value>sm system.start
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Add the following commands to the sm.cfg file on the Secondary Host:
sm -httpPort:<value> -httpsPort:<value>sm –sync
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Add the following initialization parameters to the sm.ini file for each host:
system:<value>grouplicenseip:<value>groupname:<value>jgroupstcp:<value>GossipRouterhosts:<value>
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Optional: Add the following initialization parameters to the sm.ini file for each host:
groupbindaddress:<value>grouptcpbindport:<value>asyncrefreshlbinterval:<value>grouptcpjointimeout:<value>
Example of a horizontally-scaled TCP implementation
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Machine |
sm.cfg (excerpt) |
sm.ini (excerpt) |
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myserver1 10.0.0.135 (Primary Host) |
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myserver2 10.0.0.136 (Secondary Host) |
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myserver3 10.0.0.137 (Secondary Host) |
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Related topics
Configure Service Manager Jgroups to use TCP instead of UDP
Configure Jgroups to use TCP in a vertically-scaled environment
Related topics
Parameter: jgroupstcp
Parameter: GossipRouterhosts
Parameter: asyncrefreshlbinterval
Parameter: grouptcpjointimeout
Parameter: grouptcpbindport
