DB2 - Problem description
Problem IT37103 | Status: Closed |
PURESCALE DELETE ROWS PERFORMANCE REGRESSION ON RDMA NETWORKS | |
product: | |
DB2 FOR LUW / DB2FORLUW / B50 - DB2 | |
Problem description: | |
A breathing point was introduced for Db2 pureScale between some RDMA calls to reduce high CPU usage seen in specific busy workload scenarios. This was later found to introduce a performance regression in bulk delete scenarios and has been removed. Applicable to the following release: db2_v115m5fp0 and db2_v115m5fp1. | |
Problem Summary: | |
**************************************************************** * USERS AFFECTED: * * db2_v115m5fp0 and db2_v115m5fp1 * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Move up to the db2_v115m6fp0 release * **************************************************************** | |
Local Fix: | |
N/A ... Move up to db2_v115m6fp0 | |
Solution | |
Workaround | |
**************************************************************** * USERS AFFECTED: * * db2_v115m5fp0 and db2_v115m5fp1 * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Move up to the db2_v115m6fp0 release * **************************************************************** | |
Comment | |
The sleep call has been removed from the RDMA code | |
Timestamps | |
Date - problem reported : Date - problem closed : Date - last modified : | 02.06.2021 21.06.2021 21.06.2021 |
Problem solved at the following versions (IBM BugInfos) | |
Problem solved according to the fixlist(s) of the following version(s) |