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<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">Hi Yuan,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D;mso-fareast-language:EN-US">please compare similar issue described in this bug report [1] and the corresponding fix [2].<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D;mso-fareast-language:EN-US">As Craig explained in his comment to patch set 4, Kafka server closes idle connections after around 10 minutes, which causes first write to the topic fail.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D;mso-fareast-language:EN-US">I hope it helps.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D;mso-fareast-language:EN-US">Witek<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D;mso-fareast-language:EN-US">[1]
<a href="https://storyboard.openstack.org/#!/story/2001386">https://storyboard.openstack.org/#!/story/2001386</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D;mso-fareast-language:EN-US">[2] https://review.openstack.org/525669<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> Yuan.Pen@t-systems.com [mailto:Yuan.Pen@t-systems.com]
<br>
<b>Sent:</b> Freitag, 12. Januar 2018 19:36<br>
<b>To:</b> roland.hochmuth@hpe.com<br>
<b>Cc:</b> Bedyk, Witold <witold.bedyk@est.fujitsu.com>; monasca@lists.launchpad.net; Trebski, Tomasz <Tomasz.Trebski@ts.fujitsu.com>; bradley.klein@charter.com<br>
<b>Subject:</b> alarm transition events are missing in kafka queue - mysql alarm state is updated properly<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US">Hi Roland,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">This is Yuan Pen from Deutsche Telekom. I am sending this email to the monasca community asking for help on monasca threshold engine. We have found that when sometime alarm state transitions happened, the threshold engine
updated mysql alarm state properly, but failed to put state transition events in kafka queue (alarm-state-transitions). Does this ring a bell to anyone in the community? If this is a real problem, is there anything we can do to make sure the event in transition
queue and state in mysql is synched? Any comments or help are greatly appreciated.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Best Regard, <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Yuan Pen<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">571-594-6155<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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