<div dir="ltr">Hello Charles,<br><br><div>The specification looks very good and we can start with it for table and data item events.<br><br>The only thing I'm not quite sure is implementation of table.usage information. <br>
I mean this part of description "<span style="color:rgb(51,51,51);font-family:'Arial Unicode MS',Arial,sans-serif;font-size:14px;line-height:20px">Periodic usage notification generated by the magnetodb-table-usage-audit cron job"<br>
</span><br>Until now we don't have central place for running such job for all tables and I wouldn't want to introduce it, but having it working on each MDB api instance will multiply the number of notifications. Also I'm not sure that it will scale well with growing count of tables.</div>
<div><br></div><div>I believe that MDB should be pooled for table.usage as well as for other data what describes general state of system by monitoring system. <br><br>What do you think?<br><br>Thanks,<br>Ilya</div><div><br>
</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, May 27, 2014 at 5:56 PM, Charles Wang <span dir="ltr"><<a href="mailto:Charles_Wang@symantec.com" target="_blank">Charles_Wang@symantec.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word;color:rgb(0,0,0);font-size:14px;font-family:Calibri,sans-serif"><div>Hi Dmitriy,</div><div><br></div><div>Thank you very much for your feedback.</div><div><br></div><div>Although it looks like MagnetoDB Events & Notifications component has some similarities to Ceilometer, it is much narrower scope. We only plan to provide immediate and periodic notifications of MagnetoDB table/data item CRUD activities based on Oslo Notification. There’s no backend database storing them, and no query API for those notifications. They are different from Ceilometer metrics and events. In the future when we integrate with Ceilometer, the MagnetoDB notifications are fed into Ceilometer to collect Ceilometer metrics, and/or generate Ceilometer events. Basically Ceilometer will be a consumer of MagnetoDB notifications.</div>
<div><br></div><div>I’ll update the wiki further to define our scope clearer, and possibly drop the word "events” to indicate we focus on notifications.</div><div><br></div><div>Regards,</div><div><br></div><div>Charles </div>
<div><br></div><div><br></div><div><br></div><span><div style="font-family:Calibri;font-size:11pt;text-align:left;color:black;BORDER-BOTTOM:medium none;BORDER-LEFT:medium none;PADDING-BOTTOM:0in;PADDING-LEFT:0in;PADDING-RIGHT:0in;BORDER-TOP:#b5c4df 1pt solid;BORDER-RIGHT:medium none;PADDING-TOP:3pt">
<span style="font-weight:bold">From: </span> Dmitriy Ukhlov <<a href="mailto:dukhlov@mirantis.com" target="_blank">dukhlov@mirantis.com</a>><br><span style="font-weight:bold">Reply-To: </span> "OpenStack Development Mailing List (not for usage questions)" <<a href="mailto:openstack-dev@lists.openstack.org" target="_blank">openstack-dev@lists.openstack.org</a>><br>
<span style="font-weight:bold">Date: </span> Monday, May 26, 2014 at 7:28 AM<br><span style="font-weight:bold">To: </span> "OpenStack Development Mailing List (not for usage questions)" <<a href="mailto:openstack-dev@lists.openstack.org" target="_blank">openstack-dev@lists.openstack.org</a>><br>
<span style="font-weight:bold">Subject: </span> Re: [openstack-dev] [MagnetoDB] MagnetoDB events & notifications<br></div><div><div class="h5"><div><br></div><div dir="ltr"><div><div>Hi Charles!<br><br></div>It looks like to me that we are duplicating functionality of Ceilometer project.<br>
</div> Am I wrong? Have you considered Ceilometer integration for monitoring MagnetoDB?<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Fri, May 23, 2014 at 6:55 PM, Charles Wang <span dir="ltr"><<a href="mailto:Charles_Wang@symantec.com" target="_blank">Charles_Wang@symantec.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word;color:rgb(0,0,0);font-size:14px;font-family:Calibri,sans-serif"><div>Folks,</div><div>
<br></div><div>Please take a look at the initial draft of MagnetoDB Events and Notifications wiki page: <a href="https://wiki.openstack.org/wiki/MagnetoDB/notification" target="_blank">https://wiki.openstack.org/wiki/MagnetoDB/notification</a>. Your feedback will be appreciated. </div>
<div><br></div><div>Thanks,</div><div><br></div><div>Charles Wang</div><div><a href="mailto:charles_wang@symantec.com" target="_blank">charles_wang@symantec.com</a></div><div><br></div><div><br></div></div><br>_______________________________________________<br>
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<br></blockquote></div><br><br clear="all"><br>-- <br><div dir="ltr"><div><div>Best regards,<br></div>Dmitriy Ukhlov<br></div>Mirantis Inc.<br></div></div></div></div></span></div>
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