Why does a SAPInstance resource unexpectedly failover when using the `sap_cluster_connector`?
Issue
- Unexpected failover of the
SAPInstance
cluster resources when the monitor operation detects the statusGRAY
:
SAPInstance(SID_SCS<InstanceNumber>)[pid]: ERROR: SAP instance service msg_server is not running with status GRAY !
SAPInstance(SID_SCS<InstanceNumber>)[pid]: ERROR: SAP instance service enserver is not running with status GRAY !
SAPInstance(SID_SCS<InstanceNumber>)[pid]: ERROR: SAP instance service gwrd is not running with status GRAY !
- The number of file descriptors limit for the user
SIDadm
is reached. - The file
sapstartsrv.log
reports the following message around the time theSAPInstance
resource reports the SAP instance has statusGRAY
:
SAP HA Trace: === SAP_HA_CheckConfig ===
SAP HA Error: num_active_calls overflowSAP HA Trace: Fire system command /usr/bin/sap_cluster_connector hcc ...
Environment
Red Hat Enterprise Linux 8 with High-Availability Add-on
Pacemaker cluster running SAPInstance
resources
sap_cluster_connector
is configured for the SAPInstance
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