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Hi everyone, I was going around trying to figure out how to get ceph metrics
on a more detailed level than daemons. Of course, I found and
explored API for watching rados objects, but I'm more interested
in getting metrics about RBD images. And while I could get list of
objects for particular image, and then watch all of them, it
doesn't seem like very efficient way to go about it. I checked librbd API and there isn't anything helping with my goal. So I went through the source code and found list of performance counters for image which are incremented by other parts of ceph when making corresponding operations: https://github.com/ceph/ceph/blob/master/src/librbd/ImageCtx.cc#L364 I have 2 questions about it: 1) is there any workaround to use those counters right now? maybe
when compiling against ceph the code doing it. Looks like I need
to be able to access particular ImageCtx object (instead of
creating my own), and I just can't find appropriate class / part
of the librbd allowing me to do so. 2) are there any plans on making those counters accessible via API like librbd or librados? I see that these questions might be more appropriate for the devel list, but: - it seems to me that question of getting ceph metrics is more
interesting for those who use ceph - I couldn't subscribe to it with an error provided below. Thanks! majordomo@xxxxxxxxxxxxxxx: SMTP error from remote server for MAIL FROM command, host: vger.kernel.org (209.132.180.67) reason: 553 5.7.1 Hello [74.208.4.201], for your MAIL FROM address <masha.atakova@xxxxxxxx> policy analysis reported: Your address is not liked source for email --- The header of the original message is following. --- Received: from [192.168.1.10] ([223.206.146.181]) by mail.gmx.com (mrgmxus001 [74.208.5.15]) with ESMTPSA (Nemesis) id 0M92q3-1d0LS03yov-00CTwW for <majordomo@xxxxxxxxxxxxxxx>; Mon, 27 Mar 2017 05:55:46 +0200 To: majordomo@xxxxxxxxxxxxxxx From: Masha Atakova <masha.atakova@xxxxxxxx> Subject: subscribe ceph-devel Message-ID: <174d9bc0-b50d-fc80-ede8-5ba9d472e56a@xxxxxxxx> Date: Mon, 27 Mar 2017 10:55:43 +0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.7.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K0:Lau7llt7/MuJt+nRLjXIhY91IuCvCBJGtqDzxLgqkh2ERVkWeep 5CDyh9GHW7QSodn80xWCPOOD2kvvnr6YxrB5R9SZ1iloI9VO2YoTXAauDq4mtWh+abwUOiY wQgj6YvUcLjfUinsh0t68Q9m3h3ufZIoKIeWhKFGbsRALqsvZjgWBVlaAR/V5Vt4O/wFJGG YULQ6/t4oDSsBuy4agFdQ== X-UI-Out-Filterresults: notjunk:1;V01:K0:xLdjozptxu8=:nO7vxZvAbidrXk7gcv7Wqc Bjr14pXiTEv8gVIlRTZ78cNDEQthT557sAgBBRnJkDGXkP1efvEN2QqsZAzfa52Og4ysSFXub BPSiDOI0wkzxQMu1QHqWzvURobFX9LxrctwYB3k9nrOtHFgJwm0eQWfV1QKg7i0ESzT244u2c 2xKpGGrhNUspJtEep97xjY3DyDvR3ApYx9x+RO9ZQAE0Is9AO0mBYqDR3NqrF1KzabJWuCA7I yu1y9N0QILgr/WmUf74qxeh1k20n+7yYuYPzgIl9Cm2vyrVu2ONUTJMpN2p+iUit8hhUsTuYQ /TNde22Q5OOCz+oGVhWq04J+CBP23VrEkent4kw2vhejDjQD/F2J4o2XkfkPt7ZqpMreGWBfB jtpfz4jHyp+voLlldhw7+cKUGY4ux8dihtlaCm9N3FQ2qvQ9CTsFuLsTNHNe7uRx5oeZgBFFh 6t1OVBLlRR1wwSMDbx6vE5UTx47vbAtu5I/vyryQ1jVnzyQitjWE6iLMEC8faatMquOxJreoF 4ALLNVStuHEkaGC0zimjQ5YkiFe6nHqxwsaYU7Vcy0j9GXTkiakh6kwluOyLqy5Q1e1FHPfSG /swFoOHGvb07bK81+G1OLT7nIIArC+NrsHGmsrycXpw9gvZGubLYoYSgRskhJ1F+QxCzspFK0 XOgA5Ko3M3djFYkMM0S+xHHyVIIpUr4qQXv1sKuWUY63wlalu3JLwWn7t8CBhC2R0s/3ec0WT WD+iDs0hWe0INwfX+BNVWIuyzim7qKg8wbG95YWyAI9J9dyx7lv4VETd2Zf5raU1TgNFB/6OP RQrUx3O |
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