Hi Ruwan, How can I capture a thread dump?
Dan -----Original Message----- From: Ruwan Linton [mailto:[email protected]] Sent: Friday, March 06, 2009 1:04 PM To: [email protected] Subject: Re: JMS proxy stopped reading messages Hi Dan, You cannot assure that Synapse is not locked because of a task is running, this is because the JMS transport is using a different thread pool than the one used to run tasks. Tasks are running on the synapse core thread pool where as the JMS message reading process is done by the transport thread pool. I suspect that the JMS transport thread pool has been locked and exhausted due to some reason. Can you please try to reproduce this and attach a thread dump after it stops reading the JMS queue? Thanks, Ruwan On Fri, Mar 6, 2009 at 11:55 PM, Daniel Mc Iver <[email protected]>wrote: > Hi guys, > > I had a issue in a live system where after reading about 250 messages from > two JMS queues (on ActiveMQ) the JMS proxies stopped reading messages and > they started queuing up in the JMS queues. Synapse wasn't locked up as a > task continued to run periodically after it stopped reading messages. When I > restarted Synapse it started reading the messages again. Can you give me > some guidance as to what may have gone wrong? I can't find anything in the > log files. ActiveMQ and Synapse are on the same server and were both up > throughout. > > Thanks, > > Dan > > ________________________________ > The information in this message is confidential and may be legally > privileged. It is intended solely for the addressee. Access to this message > by anyone else is unauthorised. If you are not the intended recipient, any > disclosure, copying, or distribution of the message, or any action or > omission taken by you in reliance on it, is prohibited and may be unlawful. > Please immediately contact the sender if you have received this message in > error. > > The views and opinions expressed in this email may not reflect the views > and opinions of any member of Lagan Technologies Limited, or any of its > subsidiaries. > > Lagan Technologies Limited is a company registered in Northern Ireland with > registration number NI 28773. The registered office of Lagan Technologies > Limited is 209 Airport Road West, Belfast, Co. Antrim, BT3 9EZ. > > -- Ruwan Linton http://wso2.org - "Oxygenating the Web Services Platform" http://ruwansblog.blogspot.com/ The information in this message is confidential and may be legally privileged. It is intended solely for the addressee. Access to this message by anyone else is unauthorised. If you are not the intended recipient, any disclosure, copying, or distribution of the message, or any action or omission taken by you in reliance on it, is prohibited and may be unlawful. Please immediately contact the sender if you have received this message in error. The views and opinions expressed in this email may not reflect the views and opinions of any member of Lagan Technologies Limited, or any of its subsidiaries. Lagan Technologies Limited is a company registered in Northern Ireland with registration number NI 28773. The registered office of Lagan Technologies Limited is 209 Airport Road West, Belfast, Co. Antrim, BT3 9EZ.
