ctran.jpc events

Contributors

ctran.jpc.assigned

Severity

INFORMATIONAL

Description

This message occurs when a Join Proposal Coordinator (JPC) node is assigned by Kernel Cluster Services (KCS) Cluster Transaction Manager (CTRAN).

Corrective Action

(None).

Syslog Message

Cluster node (name=%s, ID=%llu) is the Join Proposal Coordinator (JPC) node.

Parameters

nodename (STRING): Host name of the JPC node.
node_id (LONGINT): Node id of the JPC node.

ctran.jpc.multiple.nodes

Severity

EMERGENCY

Description

This message occurs when multiple Join Proposal Coordinator (JPC) nodes for the Cluster Transaction Manager (CTRAN) are detected.

Corrective Action

KCS CTRAN logs will need to be collected for further analysis. Trigger an ALL autosupport by using, "autosupport invoke -node * -message "ctran.jpc.multiple.nodes" -type all", a diagnostic autosupport by using "autosupport invoke-diagnostic -node * -message "ctran.jpc.multiple.nodes" -subsystem kcs" and contact NetApp technical support support.

Syslog Message

Cluster node %u detected multiple JPC nodes (node %u reports JPC %u, node %u reports JPC %u)

Parameters

local_node_id (LONGINT): ID of the local node.
src_node_id_1 (LONGINT): ID of the first node reporting a JPC.
jpc_node_id_1 (LONGINT): ID of the JPC node reported by src_node_id_1.
src_node_id_2 (LONGINT): ID of the second node reporting a JPC.
jpc_node_id_2 (LONGINT): ID of the JPC node reported by src_node_id_2.

ctran.jpc.not.found

Severity

EMERGENCY

Description

This message occurs when this node cannot find a a Join Proposal Coordinator (JPC) within the cluster for Kernel Cluster Services (KCS) Cluster Transaction Manager (CTRAN). Until this error is resolved the reporting node will not be able to participate in distributed operations.

Corrective Action

Perform a planned takeover/giveback sequence to reset the reporting node non-disruptively by using the "takeover -ofnode (reporting node)" and "giveback -ofnode (reporting node)" commands. If the error message is still seen KCS CTRAN logs will need to be collected for further analysis. Trigger an ALL autosupport by using, "autosupport invoke -node * -message "ctran.jpc.not.found" -type all", a diagnostic autosupport by using "autosupport invoke-diagnostic -node * -message "ctran.jpc.not.found" -subsystem kcs" and contact NetApp technical support support.

Syslog Message

This node was unable to locate a Join Proposal Coordinator (JPC) node.

Parameters

(None).

ctran.jpc.valid.failed

Severity

EMERGENCY

Description

This message occurs when the Join Proposal Coordinator (JPC) validation fails due to an inconsistent state of some of the Cluster Transaction Manager (CTRAN) group members following a JPC reselection event. In some cases, this can result in loss of SAN data access, CLI command failures and/or giveback failures.

Corrective Action

Reset the CTRAN subsystem during a maintenance window by placing the node specified ineligible by using "cluster modify -node (node reporting error) -eligibility false". Once complete return the node to serivce by entering "cluster modify -node (node reporting error) -eligibility true". Note, making a node ineligible impacts all protocols on that node. During the time that a node is ineligible, it will not serve any data. If a non-disruptive resolution is desired, takeover the reporting node by using "takeover -of-node (reporting-node)", and then returning it to service by "giveback -of-node (reporting-node)" when it is ready. If the error is still seen KCS CTRAN logs will need to be collected for further analysis. Trigger an ALL autosupport by using "autosupport invoke -node * -message "ctran.jpc.valid.failed" -type all", a diagnostic autosupport by using "autosupport invoke-diagnostic -node * -message "ctran.jpc.valid.failed" -subsystem kcs" and contact NetApp technical support support.

Syslog Message

CTRAN JPC validation failed on local node (name=%s, id=%llu, num_groups=%llu).

Parameters

localhostname (STRING): Host name of the local node.
localnodeid (LONGINT): Node ID of the local node.
numgroups (LONGINT): Number of inconsistent groups.