Rashid Mahmood created JAMES-3086:
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Summary: Mail Server Load Test giving very low throughput
Key: JAMES-3086
URL: https://issues.apache.org/jira/browse/JAMES-3086
Project: James Server
Issue Type: Bug
Components: POP3Server, SMTPServer
Affects Versions: 3.3.0
Reporter: Rashid Mahmood
Attachments: image-2020-03-04-09-30-30-054.png, threaddump.txt
After functional tests, we are performing load tests against James Server setup
with Casandra/Elasticsearch packaging option. With JMeter constant throughput
timer of 300 SMPT requests per seconds we are achieving around 10 requests per
seconds. Each Request is with 100KB attachment. Observed CPU of the machine
(where MailServer running) was over exhausted.
Many of the threads in thread dump were in awaiting notifications state.
I see around 100 threads from Elastic search, is there any configuration to
control this?
Where is the bottleneck?
!image-2020-03-04-09-30-30-054.png!
See the thread dump in attachment.
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