<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
p.MsoListParagraph, li.MsoListParagraph, div.MsoListParagraph
{mso-style-priority:34;
margin-top:0in;
margin-right:0in;
margin-bottom:0in;
margin-left:.5in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
p.msonormal0, li.msonormal0, div.msonormal0
{mso-style-name:msonormal;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
span.EmailStyle18
{mso-style-type:personal;
font-family:"Calibri",sans-serif;
color:windowtext;}
span.EmailStyle19
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
/* List Definitions */
@list l0
{mso-list-id:876164898;
mso-list-type:hybrid;
mso-list-template-ids:-1565862402 -1392098328 67698713 67698715 67698703 67698713 67698715 67698703 67698713 67698715;}
@list l0:level1
{mso-level-text:"%1\)";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:20.25pt;
text-indent:-.25in;}
@list l0:level2
{mso-level-number-format:alpha-lower;
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:56.25pt;
text-indent:-.25in;}
@list l0:level3
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
margin-left:92.25pt;
text-indent:-9.0pt;}
@list l0:level4
{mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:128.25pt;
text-indent:-.25in;}
@list l0:level5
{mso-level-number-format:alpha-lower;
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:164.25pt;
text-indent:-.25in;}
@list l0:level6
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
margin-left:200.25pt;
text-indent:-9.0pt;}
@list l0:level7
{mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:236.25pt;
text-indent:-.25in;}
@list l0:level8
{mso-level-number-format:alpha-lower;
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:272.25pt;
text-indent:-.25in;}
@list l0:level9
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
margin-left:308.25pt;
text-indent:-9.0pt;}
ol
{margin-bottom:0in;}
ul
{margin-bottom:0in;}
--></style>
</head>
<body lang="EN-US" link="#0563C1" vlink="#954F72">
<div class="WordSection1">
<p class="MsoNormal">Hi Martin,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">In STX 1.0, we ran bare-metal openstack services for which we created and managed specific ceph storage pools for glance, cinder, nova, and swift. In this environment, we managed their creation and parameters (PGs and quotas) as the cluster
scaled up.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">With the move to containerizing the openstack services in STX 2.0, pool creation is now driven mostly by helm charts packaged into an application (radosgw pools are the exception). Since we don’t know what additional application(s) will
be deployed and what pools may be created, we are currently longer managing pools as in STX 1.0.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">These related functions in sysinv/conductor/ceph.py are remaining from STX 1.0 and need to be removed and/or repurposed to meet any new requirements.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I took a look at the LP logs and it looks like we only have a single application applied: platform-integ-apps. This currently results in a single pool for 6 OSDs<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> cluster:<o:p></o:p></p>
<p class="MsoNormal"> id: 6231df84-33be-4aa4-82ea-7408e0f2421c<o:p></o:p></p>
<p class="MsoNormal"> health: HEALTH_WARN<o:p></o:p></p>
<p class="MsoNormal"> <span style="background:yellow;mso-highlight:yellow">
too few PGs per OSD (21 < min 30)</span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> services:<o:p></o:p></p>
<p class="MsoNormal"> mon: 3 daemons, quorum controller-0,controller-1,storage-0<o:p></o:p></p>
<p class="MsoNormal"> mgr: controller-0(active), standbys: controller-1<o:p></o:p></p>
<p class="MsoNormal"> <span style="background:yellow;mso-highlight:yellow">osd: 6 osds: 6 up, 6 in</span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> data:<o:p></o:p></p>
<p class="MsoNormal"> pools: 1 pools, 64 pgs<o:p></o:p></p>
<p class="MsoNormal"> objects: 0 objects, 0 B<o:p></o:p></p>
<p class="MsoNormal"> usage: 645 MiB used, 5.4 TiB / 5.4 TiB avail<o:p></o:p></p>
<p class="MsoNormal"> pgs: 64 active+clean<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Since every installation will install platform-integ-apps, I think we should do the following:<o:p></o:p></p>
<ol style="margin-top:0in" start="1" type="1">
<li class="MsoListParagraph" style="margin-left:-15.75pt;mso-list:l0 level1 lfo1">
Update the chunk_size calculation in sysinv/helm/rbd_provisioner.py to be dynamically calculated based on the number OSDs provisioned in the cluster. As this may be the only pool created, it should meet the minimum size characteristics to avoid a ceph warning.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:-15.75pt;mso-list:l0 level1 lfo1">
Update the rbd-provisioner helm chart to support explicitly setting the pg_num based on the chunk size. Do this to allow setting a user override for the chunk size so that we can re-apply platform-integ-apps and explicitly set new values.
<o:p></o:p></li></ol>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal">Bob<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">"Chen, Haochuan Z" <haochuan.z.chen@intel.com><br>
<b>Date: </b>Monday, December 2, 2019 at 1:15 AM<br>
<b>To: </b>Robert Church <Robert.Church@windriver.com><br>
<b>Cc: </b>"'starlingx-discuss@lists.starlingx.io'" <starlingx-discuss@lists.starlingx.io>, Ovidiu Poncea <Ovidiu.Poncea@windriver.com><br>
<b>Subject: </b>ceph ops enabling in sysinv-conductor<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<p class="MsoNormal">Hi Bob<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">I find some many function in sysinv-conductor/ceph.py, which could manage ceph cluster, such as create/delete/configure pool, audit pg etc.<o:p></o:p></p>
<p class="MsoNormal">But why these function is not enabled? Or plan to request user to manage ceph cluster, such as create pool and configure pg num?<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Now I checked this issue, pg too few, as user maybe deploy few osd, which make alarm. So for such issue, request user to decide correct pg num or user could ignore?<o:p></o:p></p>
<p class="MsoNormal"><a href="https://bugs.launchpad.net/starlingx/+bug/1844164">https://bugs.launchpad.net/starlingx/+bug/1844164</a><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">BR!<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Martin, Chen<o:p></o:p></p>
<p class="MsoNormal">SSP, Software Engineer<o:p></o:p></p>
<p class="MsoNormal">021-61164330<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
</body>
</html>