sendsync from a service to another service seems to cause a deadlock under load
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Key: SM-512
URL: https://issues.apache.org/activemq/browse/SM-512
Project: ServiceMix
Issue Type: Bug
Affects Versions: 3.0-M2
Environment: Windows 2003, Intel 2.8 xeon processor. Java 1.5 3.0-M2
Reporter: anand somani
Fix For: 3.0-M3
Attachments: test.zip
We have 2 services A and B. A makes sync requests to B. We have a JMS client
that feeds requests to A and that triggers a sync request to B. We are trying
to push some 5000 requests (not sequential). Now
With st flow - A gets all the responses from B and we are good
with Seda flow - A gets some responses from B (sometimes none) and then
all the threads are blocked (seen using JMX) on syncsend(), looks like B has no
threads to service requests.
with JMS flow ( A and B on different VMs), we see the similar behavior as
with seda flow
With async requests everything works just fine. We have tried increasing seda
capacity and workmanager thread count, that did not help. I am attaching
service A and B code along with configuration files
Also it would be nice to have all the tunable features documented with some
explaination somewhere ( I could not find it anywhere)
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