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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Thanks Anna, I will email you directly.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Bob Oesterlin<br>
Sr Principal Storage Engineer, Nuance<br>
507-269-0413<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-family:"Calibri",sans-serif;color:black">From:
</span></b><span style="font-family:"Calibri",sans-serif;color:black"><gpfsug-discuss-bounces@spectrumscale.org> on behalf of Anna Christina Wagner <Anna.Wagner@de.ibm.com><br>
<b>Reply-To: </b>gpfsug main discussion list <gpfsug-discuss@spectrumscale.org><br>
<b>Date: </b>Thursday, May 11, 2017 at 6:28 AM<br>
<b>To: </b>gpfsug main discussion list <gpfsug-discuss@spectrumscale.org><br>
<b>Subject: </b>[EXTERNAL] Re: [gpfsug-discuss] "mmhealth cluster show" returns error<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"sans-serif",serif">Hello Bob,</span><br>
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<span style="font-size:10.0pt;font-family:"sans-serif",serif">4.2.2 is the release were we introduced "mmhealth cluster show". And you are totally right, it can be a little fragile at times.</span><br>
<br>
<span style="font-size:10.0pt;font-family:"sans-serif",serif">So a short explanation:
</span><br>
<span style="font-size:10.0pt;font-family:"sans-serif",serif">We had this situation on test machines as well. Because of issues with the system not only the mm-commands but also usual Linux commands
</span><br>
<span style="font-size:10.0pt;font-family:"sans-serif",serif">took more than 10 seconds to return. We have internally a default time out of 10 seconds for cli commands. So if you had a failover situation, in which the cluster manager
</span><br>
<span style="font-size:10.0pt;font-family:"sans-serif",serif">was changed (we have our cluster state manager (CSM) on the cluster manager) and the mmlsmgr command did not return in 10 seconds the node does not</span><br>
<span style="font-size:10.0pt;font-family:"sans-serif",serif">know, that it is the CSM and will not start the corresponding service for that.
</span><br>
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<br>
<span style="font-size:10.0pt;font-family:"sans-serif",serif">If you want me to look further into it or if you have feedback regarding mmhealth please feel free to send me an email (Anna.Wagner@de.ibm.com)</span><br>
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<span style="font-size:7.5pt;font-family:"Arial",sans-serif">Mit freundlichen Grüßen / Kind regards</span><br>
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<b><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Wagner, Anna Christina</span></b><br>
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<span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#0060A0">Software Engineer, Spectrum Scale Development</span><br>
<span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#0060A0">IBM Systems</span><br>
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<span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#A2A2A2">IBM Deutschland Research & Development GmbH / Vorsitzende des Aufsichtsrats: Martina Koederitz<br>
Geschäftsführung: Dirk Wittkopp<br>
Sitz der Gesellschaft: Böblingen / Registergericht: Amtsgericht Stuttgart, HRB 243294
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