<div dir="ltr"><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Jan 15, 2014 at 1:32 PM, ZhiQiang Fan <span dir="ltr"><<a href="mailto:aji.zqfan@gmail.com" target="_blank">aji.zqfan@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div>Hi,<br><br>When read Ceilometer install guide[1], the mul<span style="font-family:arial,helvetica,sans-serif">ti valued option notification_driver is set to two drivers, My question is that is the first one, which means <span style="text-indent:0px;letter-spacing:normal;font-variant:normal;text-align:left;font-style:normal;display:inline!important;font-weight:normal;float:none;line-height:17.3281px;text-transform:none;font-size:13px;white-space:pre-wrap;word-spacing:0px">nova.openstack.common.notifier.rpc_notifier, necessary? what will happen if it is removed?<br>
</span></span></div></div></div></blockquote><div><br></div><div><div class="gmail_default" style="font-size:small">If the rpc notifier is not configured in nova's settings, then nova will not send notifications to the message bus and ceilometer will not have data to record about nova resources.</div>
<br></div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><span style="font-family:arial,helvetica,sans-serif"><span style="text-indent:0px;letter-spacing:normal;font-variant:normal;text-align:left;font-style:normal;display:inline!important;font-weight:normal;float:none;line-height:17.3281px;text-transform:none;font-size:13px;white-space:pre-wrap;word-spacing:0px">Note, it is not configured even in Nova installation, but is set in Ceilometer compute agent configuration part.<br>
</span></span></div></div></div></blockquote><div><br></div><div><div class="gmail_default" style="font-size:small">The rpc notifier isn't required for nova to operate by itself, only for the integration with ceilometer.</div>
<br></div><div><div class="gmail_default" style="font-size:small">Doug</div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>
<div><span style="font-family:arial,helvetica,sans-serif"><span style="text-indent:0px;letter-spacing:normal;font-variant:normal;text-align:left;font-style:normal;display:inline!important;font-weight:normal;float:none;line-height:17.3281px;text-transform:none;font-size:13px;white-space:pre-wrap;word-spacing:0px">
</span></span></div><div><span style="font-family:arial,helvetica,sans-serif"><span style="text-indent:0px;letter-spacing:normal;font-variant:normal;text-align:left;font-style:normal;display:inline!important;font-weight:normal;float:none;line-height:17.3281px;text-transform:none;font-size:13px;white-space:pre-wrap;word-spacing:0px"><br>

</span></span></div><span style="font-family:arial,helvetica,sans-serif"><span style="text-indent:0px;letter-spacing:normal;font-variant:normal;text-align:left;font-style:normal;display:inline!important;font-weight:normal;float:none;line-height:17.3281px;text-transform:none;font-size:13px;white-space:pre-wrap;word-spacing:0px">I already read the link of SystemUsageData[2], </span></span>NotificationSystem[3], but still get no idea.<br>

<br></div>Please help, thanks<br><div><div><div><div><br><a href="http://docs.openstack.org/havana/install-guide/install/apt/content/ceilometer-install-nova.html" target="_blank">[1] http://docs.openstack.org/havana/install-guide/install/apt/content/ceilometer-install-nova.html</a><br>

[2] <a href="https://wiki.openstack.org/wiki/SystemUsageData" target="_blank">https://wiki.openstack.org/wiki/SystemUsageData</a><br>[3] <a href="https://wiki.openstack.org/wiki/NotificationSystem" target="_blank">https://wiki.openstack.org/wiki/NotificationSystem</a><span class="HOEnZb"><font color="#888888"><br>

-- <br><div dir="ltr"><div>blog: <a href="http://zqfan.github.com" target="_blank">zqfan.github.com</a><br></div>git: <a href="http://github.com/zqfan" target="_blank">github.com/zqfan</a><br></div>
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