This helped me understand that Camel Timer is defaulting to fixed-delay. From the Camel code: https://github.com/Talend/apache-camel/blob/master/camel-core/src/main/java/org/apache/camel/component/timer/TimerConsumer.java if (endpoint.isFixedRate()) { timer.scheduleAtFixedRate(task, endpoint.getDelay(), endpoint.getPeriod()); } // fixed-rate else { timer.schedule(task, endpoint.getDelay(), endpoint.getPeriod()); } // fixed-delay
From the Javadoc: https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Timer.html In fixed-rate execution, each execution is scheduled relative to the scheduled execution time of the initial execution. Fixed-rate execution is appropriate for recurring activities that are sensitive to absolute time, such as ringing a chime every hour on the hour. In fixed-delay execution, each execution is scheduled relative to the actual execution time of the previous execution. Fixed-delay execution is appropriate for recurring activities that require "smoothness." Alex Mattern | AVP | Infomediary Architect | Investor Services BROWN BROTHERS HARRIMAN 50 Post Office Square, Boston, MA 02110 T 617-772-0096 | M 857-283-3724 | alex.matt...@bbh.com www.bbh.com -----Original Message----- From: Claus Ibsen <claus.ib...@gmail.com> Sent: Friday, August 5, 2022 3:21 AM To: users@camel.apache.org Subject: [EXTERNAL SENDER:] Re: Timer ensure that the route only runs once at a time Hi Do you mean only 1 run in total, then you can use repeatCount=1 The Timer is a JDK timer so it has fixed rate | fixed interval. So set fixedRate=true if you want to sleep 90000 between the runs, regardless for how long time a task takes. On Fri, Aug 5, 2022 at 9:03 AM Simon Martinelli <si...@martinelli.ch> wrote: > Hi, > > I use a timer:// and must make sure that the route only runs once even > if it takes longer than the period. > > I tried: > fixedRate=false&period=90000 > > But Camel starts a second route if the first run is not finished. > > Thanks, > Simon > -- Claus Ibsen ----------------- https://urldefense.com/v3/__http://davsclaus.com__;!!KV6Wb-o!871gYpwanej9QZN9tiw2SA3m2EAhS05sQmigyk3LW-09kWDl2fImnpPOiMfn45ziJ3CHW0H2SmouKMVThRtP$ @davsclaus Camel in Action 2: https://urldefense.com/v3/__https://www.manning.com/ibsen2__;!!KV6Wb-o!871gYpwanej9QZN9tiw2SA3m2EAhS05sQmigyk3LW-09kWDl2fImnpPOiMfn45ziJ3CHW0H2SmouKGkIzbil$ *************************** IMPORTANT NOTE***************************** The opinions expressed in this message and/or any attachments are those of the author and not necessarily those of Brown Brothers Harriman & Co., its subsidiaries and affiliates ("BBH"). There is no guarantee that this message is either private or confidential, and it may have been altered by unauthorized sources without your or our knowledge. Nothing in the message is capable or intended to create any legally binding obligations on either party and it is not intended to provide legal advice. BBH accepts no responsibility for loss or damage from its use, including damage from virus. ******************************************************************************
