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<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Hi Allain,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Thanks for your reply! I agree with your opinions. About configuration option, I think we can propose to add max_rpc_response_timeout or multipler into the config file. The function get_max_timeout()
should return max_rpc_response_timeout or multipler*rpc_response_timeout. The default value for max_rpc_response_timeout can be 300s and for multipler can be 5. Coud you please help review and comment?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Best Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">Xu, Chenjie<o:p></o:p></span></p>
<p class="MsoNormal"><a name="_MailEndCompose"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></a></p>
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<p class="MsoNormal" align="left" style="text-align:left"><a name="_____replyseparator"></a><b><span lang="EN-US" style="font-size:11.0pt">From:</span></b><span lang="EN-US" style="font-size:11.0pt"> Legacy, Allain [mailto:Allain.Legacy@windriver.com]
<br>
<b>Sent:</b> Tuesday, November 6, 2018 8:30 PM<br>
<b>To:</b> Xu, Chenjie <chenjie.xu@intel.com>; Peters, Matt <Matt.Peters@windriver.com><br>
<b>Cc:</b> starlingx-discuss@lists.starlingx.io<br>
<b>Subject:</b> RE: [Starlingx-discuss] Analysis of patch 2e4ca00 for StarlingX Upstreaming<o:p></o:p></span></p>
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<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">The issue with changing the configuration value from 60 to 6 is that provides the default value for _<i>METHOD</i>_TIMEOUTS which means now each RPC request will timeout after 6
seconds rather than 60 seconds. In a heavily loaded system that timeout will get hit frequently thus leading to repeated RPC requests and an increased load on the server.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">We need a way to control the maximum timeout without reducing the timeout of each individual RPC timeout so much as to increase the load on the server.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">I think it is unlikely that upstream will accept the current change in its current form. Perhaps we need to propose a configuration option that can be controlled via config file
but still leaves the default as it is today.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">Allain<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal" align="left" style="text-align:left"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#333333">Allain Legacy</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#333333">,
Software Developer, Wind River</span><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"><br>
</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#333333">direct 613.270.2279 fax 613.492.7870 skype allain.legacy<o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#404040">350 Terry Fox Drive, Suite 200, Ottawa, Ontario, K2K 2W5<o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"><br>
<br>
</span><span lang="EN-US"><a href="http://www.windriver.com/" title=""Innovators Start Here" "><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:#CC0000;text-decoration:none"><img border="0" width="160" height="92" id="Picture_x0020_1" src="cid:image001.png@01D4769B.A4E97A00" alt="WIND"></span></a></span><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal" align="left" style="text-align:left"><b><span lang="EN-US" style="font-size:11.0pt">From:</span></b><span lang="EN-US" style="font-size:11.0pt"> Xu, Chenjie [<a href="mailto:chenjie.xu@intel.com">mailto:chenjie.xu@intel.com</a>]
<br>
<b>Sent:</b> Tuesday, November 06, 2018 2:35 AM<br>
<b>To:</b> Peters, Matt<br>
<b>Cc:</b> <a href="mailto:starlingx-discuss@lists.starlingx.io">starlingx-discuss@lists.starlingx.io</a><br>
<b>Subject:</b> [Starlingx-discuss] Analysis of patch 2e4ca00 for StarlingX Upstreaming<o:p></o:p></span></p>
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<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Hi Matt,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The patch 2e4ca00 changes function get_max_timeout() by changing the multiplication factor of 10 to 1 to avoid wait for 60*10 seconds(The default value for rpc_response_timeout is 60). This can be done by changing the
default value from 60 to 6. Then will wait 6*10 seconds. This patch may be just a configuration problem to neutron upstream. Do you think we should upstream this patch or not?<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">Best Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Xu, Chenjie<o:p></o:p></span></p>
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