Experts
One of our Big table JVSO1 has performance issue during delta merges. We have 4 HANA nodes ( 4th being standby ). We did the table partition and spread across three nodes. So we have one partition on Hana1 node, 1 on Hana 2 node and 2 on Hana 3 node.
Whenever there is a Delta merge occurring on Hana1 node, we see lot of performance issues. Sometimes DB connections from our SLT and ECC servers gets timed out. Also the Delta merge time is higher for no of records compared to same in other nodes.
We have 40 CPU Cores on this host with processing power 2400 MHz. Hana1 is our Master node. I see the CPU bumped up to 100% during this period of time. How does system calculates as how many threads it allocates to Delta Merge Process
How do we start troubleshooting this issue?
Mahesh Shetty