The "SENDING: Response ..." with the correlation id is enough, that is the response to a sync request. Ignore the "producer flow control" bit, that was just to determine the context, I was not sure because the producerAck term has a specific meaning in activemq. A producer does not typically get acks, just responses to sync requests.
On 27 June 2011 15:57, Ozan Seymen <ozan.sey...@tdpg.com> wrote: > Do you think I should rely on "SENDING: Response ..." line as the broker's > guarantee or should I enable producer flow control and trace ProducerAcks? > > I thought producer flow control was more to do with "resource management" and > broker would always send some sort of persistence guarantee even producer > flow control is disabled. Is this accurate? > > Thanks for all this info Gary. > > -----Original Message----- > From: Gary Tully [mailto:gary.tu...@gmail.com] > Sent: 27 June 2011 15:45 > To: users@activemq.apache.org > Subject: Re: Tracing Broker to Producer Acks > > great. > One thought, it may be that the network connector is not requesting a sync > send. It trys to respect the original client but in the case of a transacted > client this may be a problem as messages are send async and batched at commit > time. > > Using a client side connection url parameter, jms.alwaysSyncSend=true would > help validate if this is part of the problem as it would ensure each send is > sync from the client. > > On 27 June 2011 15:03, Ozan Seymen <ozan.sey...@tdpg.com> wrote: >> I am just interested in understanding when the broker assumed responsibility >> for a specific message. I will use this trace information to go in a bit >> deeper in my tests where I am loosing messages in some scenarios - like >> http://activemq.2283324.n4.nabble.com/Message-loss-in-network-of-brokers-transactional-send-td3588714.html#a3602343. >> >> So basically I will repeat my tests with trace=true, pointpoint the exact >> location where the message is dropped and try to understand whether broker >> is killed before it assumed responsibility for it or not. If it hasn't >> assumed responsibility, then I will need to do something on the client code >> to trap that case (no need for a JIRA!). >> >> PS: These messages are all persistent and should not be lost. That's why I >> am trying to trace "I've safely stored your message" response from broker to >> producer. >> >> -----Original Message----- >> From: Gary Tully [mailto:gary.tu...@gmail.com] >> Sent: 27 June 2011 14:42 >> To: users@activemq.apache.org >> Subject: Re: Tracing Broker to Producer Acks >> >> That is a response to the send request with responseRequired=true, note the >> correlationId = 13 which corresponds to the RECEIVED commandId=13. >> So it confirms the receipt/store of the message. >> >> A producerAck, used for flow control would be a separate request. Is that >> what you are interested in, producer flow control ? >> >> On 27 June 2011 14:24, Ozan Seymen <ozan.sey...@tdpg.com> wrote: >>> Thanks for this Gary. >>> >>> Is it possible to quickly confirm whether the line starting with "SENDING" >>> is the ack returned from broker to the producer please? >>> >>> 2011-06-27 14:15:33,352 | DEBUG | RECEIVED: ActiveMQTextMessage >>> {commandId = 13, responseRequired = true, messageId = >>> ID:HAM-NB-073-58760-634447809330389070-1:0:1:1:10, >>> >>> 2011-06-27 14:15:33,354 | DEBUG | DB.DC1 toPageIn: 200, Inflight: 0, >>> pagedInMessages.size 0, enqueueCount: 20, dequeueCount: 0 | >>> org.apache.activemq.broker.region.Queue | Queue:DB.DC1 >>> >>> 2011-06-27 14:15:33,356 | DEBUG | SI.DC1 toPageIn: 200, Inflight: 0, >>> pagedInMessages.size 0, enqueueCount: 20, dequeueCount: 0 | >>> org.apache.activemq.broker.region.Queue | Queue:SI.DC1 >>> >>> 2011-06-27 14:15:33,359 | DEBUG | Q.OUT.ToDC2.DC1 toPageIn: 190, >>> Inflight: 0, pagedInMessages.size 0, enqueueCount: 20, dequeueCount: >>> 0 >>> | org.apache.activemq.broker.region.Queue | Queue:Q.OUT.ToDC2.DC1 >>> >>> 2011-06-27 14:15:33,359 | DEBUG | SENDING: Response {commandId = 0, >>> responseRequired = false, correlationId = 13} | >>> org.apache.activemq.transport.TransportLogger.Connection:2 | ActiveMQ >>> Transport: tcp:///0:0:0:0:0:0:0:1:58759 >>> >>> >>> -----Original Message----- >>> From: Gary Tully [mailto:gary.tu...@gmail.com] >>> Sent: 23 June 2011 17:45 >>> To: users@activemq.apache.org >>> Subject: Re: Tracing Broker to Producer Acks >>> >>> use trace=true on the brokerURL to see all commands, including the >>> producerAck from the broker. >>> see: http://activemq.apache.org/tcp-transport-reference.html >>> >>> On 17 June 2011 11:35, Ozan Seymen <ozan.sey...@tdpg.com> wrote: >>>> Hi, >>>> >>>> Is there any way for me to trace acks sent from broker to producer? Are >>>> there any configuration settings that I can set in log4j.properties? >>>> >>>> Regards, >>>> Ozan >>>> >>>> ________________________________ >>>> This e-mail and any attached files are intended for the named addressee >>>> only. It contains information which may be confidential and legally >>>> privileged and also protected by copyright. Unless you are the named >>>> addressee (or authorised to receive for the addressee) you may not copy or >>>> use it or disclose it to anyone else. If you received it in error please >>>> notify the sender immediately and then delete it from your system. >>>> >>>> Please be advised that the views and opinions expressed in this e-mail may >>>> not reflect the views and opinions of The Digital Property Group Limited >>>> or any of its subsidiary companies. >>>> >>>> We make every effort to keep our network free from viruses. 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It contains information which may be confidential and legally >>> privileged and also protected by copyright. Unless you are the named >>> addressee (or authorised to receive for the addressee) you may not copy or >>> use it or disclose it to anyone else. If you received it in error please >>> notify the sender immediately and then delete it from your system. >>> >>> Please be advised that the views and opinions expressed in this e-mail may >>> not reflect the views and opinions of The Digital Property Group Limited or >>> any of its subsidiary companies. >>> >>> We make every effort to keep our network free from viruses. However, you do >>> need to check this e-mail and any attachments to it for viruses as we can >>> take no responsibility for any computer virus which may be transferred by >>> way of this e-mail. We reserve the right to monitor all e-mail >>> communications. >>> >>> The Digital Property Group Limited is a Daily Mail and General Trust plc >>> company. >>> Registered Office: Northcliffe House, 2 Derry Street, London, W8 5TT. >>> Registered in England & Wales No: 02290527 VAT no. 243571174 >>> >>> _____________________________________________________________________ >>> _ This email has been scanned by the MessageLabs Email Security >>> System. >>> For more information please visit http://www.messagelabs.com/email >>> _____________________________________________________________________ >>> _ >>> >> >> >> >> -- >> http://fusesource.com >> http://blog.garytully.com >> >> ______________________________________________________________________ >> This email has been scanned by the MessageLabs Email Security System. >> For more information please visit http://www.messagelabs.com/email >> ______________________________________________________________________ >> >> This e-mail and any attached files are intended for the named addressee >> only. It contains information which may be confidential and legally >> privileged and also protected by copyright. Unless you are the named >> addressee (or authorised to receive for the addressee) you may not copy or >> use it or disclose it to anyone else. If you received it in error please >> notify the sender immediately and then delete it from your system. >> >> Please be advised that the views and opinions expressed in this e-mail may >> not reflect the views and opinions of The Digital Property Group Limited or >> any of its subsidiary companies. >> >> We make every effort to keep our network free from viruses. However, you do >> need to check this e-mail and any attachments to it for viruses as we can >> take no responsibility for any computer virus which may be transferred by >> way of this e-mail. We reserve the right to monitor all e-mail >> communications. >> >> The Digital Property Group Limited is a Daily Mail and General Trust plc >> company. >> Registered Office: Northcliffe House, 2 Derry Street, London, W8 5TT. >> Registered in England & Wales No: 02290527 VAT no. 243571174 >> >> ______________________________________________________________________ >> This email has been scanned by the MessageLabs Email Security System. >> For more information please visit http://www.messagelabs.com/email >> ______________________________________________________________________ >> > > > > -- > http://fusesource.com > http://blog.garytully.com > > ______________________________________________________________________ > This email has been scanned by the MessageLabs Email Security System. > For more information please visit http://www.messagelabs.com/email > ______________________________________________________________________ > > This e-mail and any attached files are intended for the named addressee only. > It contains information which may be confidential and legally privileged and > also protected by copyright. Unless you are the named addressee (or > authorised to receive for the addressee) you may not copy or use it or > disclose it to anyone else. If you received it in error please notify the > sender immediately and then delete it from your system. > > Please be advised that the views and opinions expressed in this e-mail may > not reflect the views and opinions of The Digital Property Group Limited or > any of its subsidiary companies. > > We make every effort to keep our network free from viruses. However, you do > need to check this e-mail and any attachments to it for viruses as we can > take no responsibility for any computer virus which may be transferred by way > of this e-mail. We reserve the right to monitor all e-mail communications. > > The Digital Property Group Limited is a Daily Mail and General Trust plc > company. > Registered Office: Northcliffe House, 2 Derry Street, London, W8 5TT. > Registered in England & Wales No: 02290527 VAT no. 243571174 > > ______________________________________________________________________ > This email has been scanned by the MessageLabs Email Security System. > For more information please visit http://www.messagelabs.com/email > ______________________________________________________________________ > -- http://fusesource.com http://blog.garytully.com
