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ONTAP EMS reference
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ctran.gc events

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ctran.gc EMS events occur when ONTAP encounters issues associated with Cluster Transaction Manager (CTRAN) Group Coordinator operations.

ctran.gc.proposal.stuck

Severity

EMERGENCY

Description

This message occurs when the Cluster Transaction Manager (CTRAN) Group Coordinator (GC) of a group runs a prop-done probe for a proposal longer than anticipated.

Corrective Action

KCS CTRAN logs need to be collected for further analysis. Trigger an ALL AutoSupport® message by using the "autosupport invoke -node * -message "ctran.gc.proposal.stuck" -type all" command. Also trigger a diagnostic AutoSupport by using the "autosupport invoke-diagnostic -node * -message "ctran.gc.proposal.stuck" -subsystem kcs" command. Then contact NetApp technical support

Syslog Message

CTRAN group %s has attempted a prop_done probe %d times against gm_id %ld on node %s with UUID %s for txn %ld with opcode %d.

Parameters

group_name (STRING): Name of the group being polled.
attempts (LONGINT): Number of attempts.
gm_id (LONGINT): Group member (GM) ID.
node_name (STRING): Name of the node the GM resides on.
node_uuid (STRING): UUID of the node the GM resides on.
trans_id (LONGINT): ID of the stuck transaction.
opcode (INT): Operation type of the stuck transaction.

ctran.gc.reselection.failed

Severity

ALERT

Description

This message occurs when some Kernel Cluster Services (KCS) Cluster Transaction Manager (CTRAN) groups lose their Group co-ordinator (GC) and a subsequent GC reselection process fails to complete.

Corrective Action

Reboot the node, and if the node is waiting for giveback then perform a giveback.

Syslog Message

CTRAN GC Reselection failed on local node (name=%s, id=%llu).

Parameters

localhostname (STRING): The host name of the local node.
localnodeid (LONGINT): The node ID of the local node.