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Re: Persisted timer event couldn't find work item handler after reload
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created by <a href="https://community.jboss.org/people/tmag">tmag</a> in <i>jBPM</i> - <a href="https://community.jboss.org/message/760587#760587">View the full discussion</a>
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<div class="jive-rendered-content"><p>Anyone faced similar issue before?  </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span>In this link : </span><a class="jive-link-external-small" href="https://issues.jboss.org/browse/JBPM-3170" target="_blank">https://issues.jboss.org/browse/JBPM-3170</a><span>, I see :</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Note that timers are persistent.  They are saved as part of the session state.  <strong>Restoring a session from database also restores the timers, so they can fire if necessary.  Timers also fire only once, on the session where the timer is registered.</strong></p><p>The JIRA refers to the fact that the session needs to be active for the timer to fire.<strong> If the user disposes the session, the timer will not fire any more. </strong> In situations where a long-lived session is used to execute processes, the session will always be alive (and can be restored in case of server restart) and timers will fire as requested.</p><p>In more complex set-ups, where multiple sessions are used and sessions could be disposed in between, a centralised session could be used to manage the timers when the other sessions are disposed.</p><p>A solution where sessions can automatically be restored when a timer might need to fire, for example by using quartz to trigger this, is under development in the community but not yet available.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>a) What does it mean by "<strong>timers fire only once & they will not fire anymore if the user disposes the session</strong>"? </p><p>b) Session always need to be active? but its also mentioned restoring a session from database also restores timers.</p><p>c) In my case when I reload the session before the timer period( i.e., 30 secs) the timer running fine. But if I wait for more time before reloading the session - getting above exception and entry removed from ProcessInstanceInfo.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Would really appreciate anyone's help on this please.</p></div>
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