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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D">Hi, Dilip<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D">Maybe you can check if the capacity_filter is working in volume creation process, and see why it choose the pool which don’t have space.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D">Thanks<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D">Wang Hao<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:宋体">发件人<span lang="EN-US">:</span></span></b><span lang="EN-US" style="font-size:10.0pt;font-family:宋体"> Dilip Sunkum Manjunath [mailto:Dilip.SunkumManjunath@toshiba-tsip.com]
<br>
</span><b><span style="font-size:10.0pt;font-family:宋体">发送时间<span lang="EN-US">:</span></span></b><span lang="EN-US" style="font-size:10.0pt;font-family:宋体"> 2016</span><span style="font-size:10.0pt;font-family:宋体">年<span lang="EN-US">2</span>月<span lang="EN-US">2</span>日<span lang="EN-US">
9:49<br>
</span><b>收件人<span lang="EN-US">:</span></b><span lang="EN-US"> openstack@lists.openstack.org<br>
</span><b>抄送<span lang="EN-US">:</span></b><span lang="EN-US"> 'itzdilip@gmail.com'<br>
</span><b>主题<span lang="EN-US">:</span></b><span lang="EN-US"> [Openstack] [CINDER] Scheduler Support for pools issue, not picking free pools<o:p></o:p></span></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Hi all,<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"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-indent:36.0pt"><b><span lang="EN-US" style="font-size:12.0pt">Use Case :
<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt;text-indent:36.0pt"><b><span lang="EN-US">Step 1<o:p></o:p></span></b></p>
<p class="MsoListParagraph" style="margin-left:108.0pt;text-indent:-18.0pt"><span lang="EN-US" style="font-family:Wingdings">§</span><span lang="EN-US" style="font-size:7.0pt;font-family:"Times New Roman","serif"">
</span><span lang="EN-US">I have multiple backend pools,<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:108.0pt;text-indent:-18.0pt"><span lang="EN-US" style="font-family:Wingdings">§</span><span lang="EN-US" style="font-size:7.0pt;font-family:"Times New Roman","serif"">
</span><span lang="EN-US">Updated the get_volume_stats() method to hold the pools information returned from storage API’s<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">Sample log : <o:p></o:p></span></p>
<p class="MsoNormal"><i><span lang="EN-US"><o:p> </o:p></span></i></p>
<p class="MsoNormal"><i><span lang="EN-US">[{'pool_name': '0', 'total_capacity_gb': 838, 'QoS_support': False, 'thick_provisioning_support': True, 'reserved_percentage': 1, 'consistencygroup_support': False, 'thin_provisioning_support': True, 'free_capacity_gb':
83.79999999999995}, {'pool_name': '1', 'total_capacity_gb': 1126, 'QoS_support': False, 'thick_provisioning_support': True, 'reserved_percentage': 1, 'consistencygroup_support': False, 'thin_provisioning_support': True, 'free_capacity_gb': 67.56000000000017}]<o:p></o:p></span></i></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:36.0pt;text-indent:36.0pt"><b><span lang="EN-US">Step 2<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="margin-left:108.0pt;text-indent:-18.0pt"><span lang="EN-US" style="font-family:Symbol">·</span><span lang="EN-US" style="font-size:7.0pt;font-family:"Times New Roman","serif"">
</span><span lang="EN-US">In Create volume method am reading the pool information as storage api need pool info(on which pool in need to create)<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:108.0pt;text-indent:-18.0pt"><span lang="EN-US" style="font-family:Symbol">·</span><span lang="EN-US" style="font-size:7.0pt;font-family:"Times New Roman","serif"">
</span><span lang="EN-US">Like pool_id = volume_utils.extract_host(volume['host'], level='pool') by making use of below import<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:72.0pt"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="margin-left:108.0pt"><span lang="EN-US">from cinder.volume import utils as volume_utils<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:90.0pt"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-indent:36.0pt"><b><span lang="EN-US">Problem am facing is:<o:p></o:p></span></b></p>
<p class="MsoNormal" style="text-indent:36.0pt"><b><span lang="EN-US"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-US"> The scheduler is not always picking the free pool which has space, it returns the pool which don’t have space.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> I came to know when I printed the volume['host'] and above pool id.<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"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Is there anything else I must do? Please suggest.<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"><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">Thanks<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Dilip<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"><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"><o:p> </o:p></span></p>
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