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Overview

Folijet investigated MODSOURCE-581 and determined that multi-tenant concurrent DI job failures are due to exhausting database resources like database connections and CPU and/or memory.

Jira Legacy
serverSystem JiraJIRA
serverId01505d01-b853-3c2e-90f1-ee9b165564fc
keyPERF-544

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  • Multitenant DI operations (3 tenants in parallel) were completed successfully for all tests with different configs and 10k & 25k files in the 'ncp5' PTF Environment.
  • Based on the comparison, the updated configuration by increasing the RDS instance to db.r6g.2xlarge helped to decrease DI duration by up to -42%. However, the updated configuration by
    Jira Legacy
    serverSystem JiraJIRA
    serverId01505d01-b853-3c2e-90f1-ee9b165564fc
    keyMODSOURCE-629
    's recommendations didn't show positive changes (DI duration decreased up to +6%).
  • Based on global test executions behaviour, the updated configuration by increasing the RDS instance to db.r6g.2xlarge and the updated configuration by
    Jira Legacy
    serverSystem JiraJIRA
    serverId01505d01-b853-3c2e-90f1-ee9b165564fc
    keyMODSOURCE-629
    's recommendations didn't help to resolve resource utilization problems (RDS CPU usage was approx. 95% for all tests with different configs and 10k & 25k files). 

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The following table contains information about the comparison of different configurations. Based on the comparison, the updated configuration by increasing the RDS instance to db.r6g.2xlarge helped to decrease DI duration by up to 42%. However, the updated configuration by

Jira Legacy
serverSystem JiraJIRA
serverId01505d01-b853-3c2e-90f1-ee9b165564fc
keyMODSOURCE-629
's recommendations didn't show positive changes.

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The screenshot above shows the global picture during DI operations. Arrow 1 indicates the anomaly behaviour of 'mod-quick-marc'. Arrow 2 indicates some anomaly but it isn't identified by AWSfor 'edge-dematic-b'.

SRM parameters update

The screenshot above shows the behaviour of typically used DI modules during DI operations.

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RDS CPU utilization increased to approx. 95% for the updated configuration by

Jira Legacy
serverSystem JiraJIRA
serverId01505d01-b853-3c2e-90f1-ee9b165564fc
keyMODSOURCE-629
's recommendations.

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