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<p class="MsoNormal">Hi all<o:p></o:p></p>
<p class="MsoNormal"> Last week, I sent a mail listed issues I met during upgrading nfv to support python3 task. With further investigating, here is my solution of the issues:
<o:p></o:p></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-indent:10.2pt"><span style="color:black"> 1. to build python3 "fm-api" rpm, pkg “python3-rpm-generators” is required. But it is conflict with pkg “rpm-build” built in the compile layer, because both of them have file (/usr/lib/rpm/pythondistdeps.py).<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:10.2pt"><span style="color:black"> // this is a general issue which will be met each time we build rpm pkg with requirement(build requirement) of python3-devel, such as python3-deamon required by logmgmt.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:10.2pt"><span style="color:black">My workaround is: rebuild python3-rpm-generators pkg from official srpm with file (usr/lib/rpm/pythondistdeps.py) removed. Pkg “rpm-build” will be the build requirement of python3-rpm-generators
pkg to ensure file (usr/lib/rpm/pythondistdeps.py) is existed after python3-rpm-generators pkg is built.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:10.2pt"><span style="color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-indent:10.2pt"><span style="color:black"> 2. as other flock services, like sysinv, are still running in python2, so it require fm-api to both run in python2 env and python3 env. It introduces a new topic: ensure it is safe
to run python2-fm-api and python3-fm-api at the same time.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:10.2pt"><span style="color:black"> // the methods
</span>fm_api provides are thread safe. So it should be safe <span style="color:black">
to run python2-fm-api and python3-fm-api at the same time.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> I’ll start to </span>build <span style="color:black">
python3 "fm-api" rpm, then model “fm-api” will supported both in python2 and python3.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:black">Thanks<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Ran </span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> An, Ran1 <ran1.an@intel.com> <br>
<b>Sent:</b> Thursday, March 12, 2020 2:19 PM<br>
<b>To:</b> starlingx-discuss@lists.starlingx.io; Tao Liu <tao.liu@windriver.com>; Al Bailey <al.bailey@windriver.com>; Bart Wensley <barton.wensley@windriver.com><br>
<b>Cc:</b> Sun, Austin <austin.sun@intel.com><br>
<b>Subject:</b> [Starlingx-discuss] [Python3] Analysis of nfv using python3<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Hi all:</span><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:black"> I’m working on task “upgrade project nfv to support python3 runtime env”. By analyzing and testing,<b> there will be 32 new python3 rpms</b>, which may impact current system.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-left:40.8pt;text-indent:-.25in"><span style="font-size:10.0pt;color:black">·</span><span style="font-size:7.0pt;color:black">
</span><span style="color:black">16 new rpms from official centos7 repo; <o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:40.8pt;text-indent:-.25in"><span style="font-size:10.0pt;color:black">·</span><span style="font-size:7.0pt;color:black">
</span><span style="color:black">12 new stx-rpms rebuilt with srpms from official centos7 repo (turn on python3 supported switch in spec);<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:40.8pt;text-indent:-.25in"><span style="font-size:10.0pt;color:black">·</span><span style="font-size:7.0pt;color:black">
</span><span style="color:black">4 stx-rpms built from tar.gz files.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:40.8pt;text-indent:-.25in"><span style="color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"> Details including pkg dependency trees and current status could be found in [1]</span><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:black">
<o:p></o:p></span></p>
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<p class="MsoNormal" style="text-indent:10.2pt"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:10.2pt"><span style="color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="text-indent:10.2pt"><span style="color:black">With patches [2], we could get an iso with nfv services (vim,vim-api, vim-webserver) running in python3.
<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:10.2pt"><span style="color:black">However, there is an run-time issues.
<b>Model “fm_api” in python3 </b>is required to support vim service reporting alarms/event_logs to fault manager (service fm-mgr). It brings following issues:<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:10.2pt"><span style="color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="text-indent:10.2pt"><span style="color:black"> 1. to build python3 "fm-api" rpm, pkg “python3-rpm-generators” is required. But it is conflict with pkg “rpm-build” built in the compile layer, because both of them have file (/usr/lib/rpm/pythondistdeps.py).<o:p></o:p></span></p>
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<p class="MsoNormal" style="text-indent:10.2pt"><span style="color:black"> 2. as other flock services, like sysinv, are still running in python2, so it require fm-api to both run in python2 env and python3 env. It introduces a new topic: ensure it is safe
to run python2-fm-api and python3-fm-api at the same time.<o:p></o:p></span></p>
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<p class="MsoNormal" style="text-indent:10.2pt"><span style="font-size:10.0pt;color:black"> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:10.2pt"><span style="color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="text-indent:10.2pt"><b><span style="color:black">The scope of this task seems expand. Is there any suggestions?
</span></b><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:10.2pt"><span style="color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-indent:10.2pt"><span style="color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black"> </span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;color:black">[1] <a href="https://bugs.launchpad.net/starlingx/+bug/1808073/+attachment/5335996/+files/nfv%20python%20dependency%20analysis.xlsx" target="_blank">
https://bugs.launchpad.net/starlingx/+bug/1808073/+attachment/5335996/+files/nfv%20python%20dependency%20analysis.xlsx</a>
</span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black">[2] patches: <a href="https://review.opendev.org/709958" target="_blank">
https://review.opendev.org/709958</a>; <a href="https://review.opendev.org/709960" target="_blank">
https://review.opendev.org/709960</a>; <a href="https://review.opendev.org/709983/1" target="_blank">
https://review.opendev.org/709983/1</a> ; <a href="https://review.opendev.org/709980" target="_blank">
https://review.opendev.org/709980</a><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black">Thanks<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:black">Ran
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
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