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2379871 - How to refresh the latency calculation time in a HADR environment

Symptom

  • You are running a SAP Business Suite application on SAP ASE and you have configured a High Aavailability Disaster Revovery (HADR) environment with SRS
  • You run sap_status path command to check the health and latency status of the replication paths in the HADR system and find that Latency Time shows the timestamp many days ago

1> sap_status path
2> go
 Path                Name          Value                    Info
 ------------------- ------------- ------------------------ ----------------------------------------------------------
                     Start Time    2016-10-19 13:50:13.163  Time command started executing.
                     Elapsed Time  00:00:03                 Command execution time.
 st127               Hostname      vm127                    Logical host name.
 st127               HADR Status   Primary : Active         Identify the primary and standby sites.
 st243               Hostname      vm243                    Logical host name.
 st243               HADR Status   Standby : Inactive       Identify the primary and standby sites.
 st127.st243.D01     State         Active                   Path is active and replication can occur.
 st127.st243.D01     Latency Time  2016-10-15 13:45:06.432  Time latency last calculated
 st127.st243.D01     Latency       2390                     Latency (ms)
 st127.st243.D01     Commit Time   2016-10-19 13:50:12.446  Time last commit replicated
 st127.st243.master  State         Active                   Path is active and replication can occur.
 st127.st243.master  Latency Time  2016-10-15 13:45:06.932  Time latency last calculated
 st127.st243.master  Latency       2656                     Latency (ms)
 st127.st243.master  Commit Time   2016-10-19 13:45:06.966  Time last commit replicated
 st243.st127.D01     State         Suspended                Path is suspended. Transactions are not being replicated.
 st243.st127.D01     Latency       Unknown                  No latency information for database 'D01'.
 st243.st127.D01     Commit Time   Unknown                  No last commit time for the database 'D01'.
 st243.st127.master  State         Suspended                Path is suspended. Transactions are not being replicated.
 st243.st127.master  Latency       Unknown                  No latency information for database 'master'.
 st243.st127.master  Commit Time   Unknown                  No last commit time for the database 'master'.

(20 rows affected)


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Environment

  • SAP Adaptive Server Enterprise (ASE) for Business Suite 15.7 SP110 and higher
  • SAP Replication Server (SRS) 15.7.1 SP111 and higher - Certified for Business Suite

Product

SAP Adaptive Server Enterprise 15.7 ; SAP Adaptive Server Enterprise 16.0 ; SAP Replication Server 15.7

Keywords

HADR, sap_send_trace, sap_status, SRS, ASE, disaster recovery, latency, trace, master, rs_ticket, replication, primary, standby , KBA , BC-SYB-REP-SAP , Replication with SAP Suite / SAP BW , BC-DB-SYB , SAP Business Suite on Sybase ASE Database Platform , How To

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