Skip to:

  1. Skip to Jira Navigation
  2. Skip to Side Navigation
  3. Skip to Main Content

Improve diagnostics and resiliency of JMS RPC (w/ embedded ActiveMQ)

Description

Goals:
1) Make it possible / easy to diagnose issues related to ActiveMQ flow control using the Karaf shell
2) Ensure that RPC producer threads are not blocked forever when flow control kicks in
3) Improve documentation around JMS RPC

Acceptance / Success Criteria

None

Lucidchart Diagrams

Activity

Jesse White August 12, 2019 at 1:32 PM

Jesse White August 9, 2019 at 9:32 PM

I've added some shell commands for managing the embedded broker: opennms-activemq:stats and opennms-activemq:purge-queue

Can be used as follows:

admin@opennms> opennms-activemq:stats Broker statistics: Connections: 8 Memory percent usage: 436% Memory usage: 87.2 MiB Memory limit: 20.0 MiB Destination statistics (top 5): OpenNMS.Sink.Syslog (Queue) Message count: 352 Enqueue count: 352 Dequeue count: 0 Cursor full: true OpenNMS.MINION.RPC.Echo (Queue) Message count: 0 Enqueue count: 8 Dequeue count: 9 Cursor full: true OpenNMS.MINION.RPC.Collect (Queue) Message count: 0 Enqueue count: 8 Dequeue count: 8 Cursor full: true OpenNMS.MINION.RPC.Poller (Queue) Message count: 0 Enqueue count: 8 Dequeue count: 8 Cursor full: true OpenNMS.Sink.Heartbeat (Queue) Message count: 0 Enqueue count: 4 Dequeue count: 4 Cursor full: true admin@opennms> opennms-activemq:purge-queue OpenNMS.Sink.Syslog Purging: OpenNMS.Sink.Syslog admin@opennms> opennms-activemq:stats Broker statistics: Connections: 8 Memory percent usage: 2% Memory usage: 489.3 KiB Memory limit: 20.0 MiB ...
Fixed

Details

Assignee

Reporter

Sprint

Fix versions

Affects versions

Priority

PagerDuty

Created August 9, 2019 at 9:29 PM
Updated August 14, 2019 at 2:57 PM
Resolved August 14, 2019 at 2:57 PM

Flag notifications