Hi Gordon, Thanks a lot for the information. I have raise the JIRA issue: https://issues.apache.org/jira/browse/QPID-3316
By the way, are there any plans to implement any paging solution you have mentioned, to make qpidd to consume more hdd space rather than memory? Best Regards, Sergey Zhemzhitsky -----Original Message----- From: Gordon Sim [mailto:[email protected]] Sent: Wednesday, June 22, 2011 4:33 PM To: [email protected] Subject: Re: flow-to-disk limit policy does not work On 06/22/2011 01:22 PM, Zhemzhitsky Sergey wrote: > Hi there, > > I'm using qpid 0.8 and I'm trying to configure queue to use the limit-policy > parameter without luck. > > Here is the command to create a queue > > qpid-config add queue myQueue --durable --file-size=256 > --file-count=96 --max-queue-count=100 --limit-policy=flow-to-disk > > Here is output of the top command after qpid starts > > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND > 28146 qpidd 19 0 123m 5596 4104 S 0.0 0.3 0:00.00 qpidd > > As you can see it uses ~5.6mb of memory. > > After I start to send non-persistent messages (size of each message is 32 > bytes) without consumption the output of the top command is the following: > > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND > 28146 qpidd 16 0 2541m 1.8g 3520 S 49.0 94.1 0:41.75 qpidd > > Now qpid consumes 1.8Gb and it continues to consume more. > > I'm wondering why so? How to make the queue to use the limit-policy parameter > correctly? That policy allows the body of the message to be released from memory, but the headers etc will still be held in memory. For small messages (such as the 32 byte message you are sending), this policy will not really do anything useful. Your use case really requires a proper paging solution which qpidd does not yet support. --------------------------------------------------------------------- Apache Qpid - AMQP Messaging Implementation Project: http://qpid.apache.org Use/Interact: mailto:[email protected] _______________________________________________________ The information contained in this message may be privileged and conf idential and protected from disclosure. If you are not the original intended recipient, you are hereby notified that any review, retransmission, dissemination, or other use of, or taking of any action in reliance upon, this information is prohibited. If you have received this communication in error, please notify the sender immediately by replying to this message and delete it from your computer. Thank you for your cooperation. Troika Dialog, Russia. If you need assistance please contact our Contact Center (+7495) 258 0500 or go to www.troika.ru/eng/Contacts/system.wbp --------------------------------------------------------------------- Apache Qpid - AMQP Messaging Implementation Project: http://qpid.apache.org Use/Interact: mailto:[email protected]
