Issue
Error regarding GAB membership reported for Veritas Cluster
Error Message
V-15-1-20036: Port %c gen%9x membership %s\n
Cause
When a GAB client on a node comes up or goes down, the entire cluster needs to be aware of the change in "membership" for that port.
After GAB on all the nodes agrees about this, the message is displayed. When a cluster node is started or brought down, all GAB clients on the node also start or go down, causing this message to appear for each port.
Also, if the network connection to a node is lost, GAB on each node logs this message after the cluster handles the situation.
All alive nodes of the cluster where GAB is configured shows these messages almost simultaneously, unless some nodes are heavily loaded.
If the administrator started or brought down a cluster node or a GAB client, or disconnected all the network links of one or more nodes, these messages are expected. If these messages appear unexpectedly, do the following:For one GAB port if a new node appears in membership then the corresponding GAB client might have started accidentally. The "new" node might have been busy when the GAB client started and just recovered from the scenario. In that case,collect commslog information immediately using the getcomms command. Also collect any logs and traces of the GAB client.
- For one GAB port one or more nodes disappear from membership then the corresponding GAB client may have failed on these nodes. In that case, collect any logs or traces of the GAB client. Look out for the V-15-1-20032 message for that port on that node.
For all active GAB ports if a new node appears in membership then the node's network connections may have just come up. Someone might have accidentally powered the node up. Collect syslog information from these nodes. One or more nodes disappear from membership.
For all active GAB ports if one or more nodes disappear from membership then the nodes may have lost network or panicked. Collect syslog information or crash dump information from these nodes.
Solution
Engage Veritas Technical Support to assist with the review of the logs collected.
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Please note that this document is a translation from English, and may have been machine-translated. It is possible that updates have been made to the original version after this document was translated and published. Veritas does not guarantee the accuracy regarding the completeness of the translation. You may also refer to the English Version of this knowledge base article for up-to-date information.