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<p class="MsoNormal">Hi lists,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We’re trying to evaluate the node failure performance in Swift.<o:p></o:p></p>
<p class="MsoNormal">According the docs Swift should be able to mute the failed nodes:
<o:p></o:p></p>
<p class="MsoNormal">‘if a storage node does not respond in a reasonable about of time, the proxy considers it to be unavailable and will not attempt to communicate with it for a while.’<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We did a simple test on a 5 nodes cluster:<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Using COSBench to keep downloading files from the clusters.<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Stop the networking on SN1, there are lots of ‘connection timeout 0.5s’ error occurs in Proxy’s log<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="mso-list:Ignore">3.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Keep workload running and wait for about 1hour<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="mso-list:Ignore">4.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>The same error still occurs in Proxy, which means the node is not muted, but we expect the SN1 is muted in proxy side and there is no ‘connection timeout ’ error in Proxy
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">So is there any special works needs to be done to use this feature?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards, -yuanz<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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