Ceph : Issueshttps://tracker.ceph.com/https://tracker.ceph.com/favicon.ico2020-10-01T10:03:53ZCeph
Redmine Dashboard - Bug #47714 (New): mgr/dashboard: Implement an expert settinghttps://tracker.ceph.com/issues/477142020-10-01T10:03:53ZStephan Müller
<p>To simplify forms implement an expert setting that if disabled hides not mandatory fields in the forms as the first step.</p>
<p>How should it look like?<br />Maybe on the top right an expert slider on the form and on the top panel. As it will have impact on what a users sees in the future.</p>
<p>Tip before getting to deep into the implementation please ask in the stand up if that's path we want to go down.</p> Dashboard - Feature #45306 (New): mgr/dashboard: asynchronous back-end: Use HTTP2 or websocketshttps://tracker.ceph.com/issues/453062020-04-28T13:11:52ZStephan Müller
<p>In order to determine what we want to use in future. I will compare both HTTP2 and websockets.</p>
<p>First a bunch of information.</p>
<p>Currently we use the protocol HTTP1.1, which only allows one request per connection.</p>
<p>With HTTP2 and websockets it is possible to allow an unlimited amount of request per connection.</p>
<p>What does one request per connection mean? For example a client asks the server for a file, this will open a connection telling the server GET me something, the server will respond and close the connection. As our dashboard does not only consist of one file, a lot of connections are made. To meet the demand of any modern site of so many connections all modern browsers will do 8 connections simultaneously. On every connection also the same header is send.</p>
<p>What does unlimited amount of requests per connection mean? For example a client asks for a (whole) website. The client sends the first request like in HTTP1.1, the server responds with an HTTP1.1 Upgrade header, client and server negotiate which protocol to use (handshake). A connection is established and left open for requests. The client sends requests for multiple files while the server already responds with the files. This maxes out the established connection, as both participants can send at the same time (for example a video chat). As the connection is left open the server can PUSH data to the client even if he had not explicitly asked for (removes polling). To save data, only the headers during the handshake are send, they will not be send multiple times.</p>
<p>Whats the difference between HTTP2 (released as standard 2015) and websockets (released as standard 2011)?<br />Both only need one connection. Websockets can run insecure using port 80 and both can run secure using port 443. Websockets use a different URL prefix <strong>ws://</strong> for insecure connections or <strong>wss://</strong> for secure ones, HTTP2 uses only <strong>https://</strong> as prefix. If HTTP2 is used data will automatically be compressed and the handshake is easier to implement than with websockets.</p>
<p>Sure HTTP2 is the better one as the protocol is much newer, but can we use it with cherrypy?<br />Currently I only found a <a href="https://docs.cherrypy.org/en/latest/advanced.html#websocket-support" class="external">plugin</a> for cherrypy to allow websockets.<br />I've not found one for HTTP2 yet but I'm still collecting information.</p> Dashboard - Feature #43930 (New): mgr/dashboard: Make user creation with password change on logon...https://tracker.ceph.com/issues/439302020-01-31T11:37:12ZStephan Müller
<p>After <a class="issue tracker-2 status-5 priority-6 priority-high2 closed child" title="Feature: mgr/dashboard: Enforce password change upon first login (Closed)" href="https://tracker.ceph.com/issues/24655">#24655</a> has been resolved, I can create a new user without a password an check "User must change password at next logon".</p>
<p>But I can't click the logon button without typing a password, but the user has no password as it should be set on next logon.</p>
<p>There are 3 ways to solve this:<br />1. Enable logon without a password<br />2. Enable passwords without password rule if the user has to change his PW anyway on his first logon according to the rules.<br />3. Button to automatically generate a password that complies with the rules and copy into to the clipboard.</p> Dashboard - Feature #42232 (New): mgr/dashboard: CephFs directory size calculationhttps://tracker.ceph.com/issues/422322019-10-08T15:02:25ZStephan Müller
<p>Add a button to calculate the size of the current selected directory</p> Dashboard - Bug #40331 (New): mgr/dashboard: Details should not display information that is shown...https://tracker.ceph.com/issues/403312019-06-13T12:31:31ZStephan Müller
<p>"Details" about table items should not display redundant information. Details should not be provided, if the table already displays all information available.</p> Dashboard - Feature #40310 (New): mgr/dashboard: Create a landing page (aggregated overview) pagehttps://tracker.ceph.com/issues/403102019-06-13T09:08:43ZStephan Müller
<p>Create a landing page (aggregated overview) page, the third step to take for multi cluster management.</p> Dashboard - Feature #40309 (New): mgr/dashboard: Implement the authentication configuration with ...https://tracker.ceph.com/issues/403092019-06-13T09:06:42ZStephan Müller
<p>Pairing of different cluster dashboards from web-ui, the second step to take for multi cluster management.</p> Dashboard - Feature #40308 (New): mgr/dashboard: Implement authentication with multiple Clusters ...https://tracker.ceph.com/issues/403082019-06-13T09:05:27ZStephan Müller
<p>Pairing of different cluster dashboards from commandline, the first step to take for multi cluster management.</p> Dashboard - Tasks #25167 (New): mgr/dashboard: Display useful popovers in formshttps://tracker.ceph.com/issues/251672018-07-30T14:49:33ZStephan Müller
<p>Add useful popovers to each form attribute, for inexperienced users.</p> Dashboard - Feature #25166 (New): mgr/dashboard: Add cache pool supporthttps://tracker.ceph.com/issues/251662018-07-30T14:47:06ZStephan Müller
<p>Ceph provides a concept of <a href="http://ceph.com/docs/master/dev/cache-pool/" class="external">cache pools</a>. It should be possible for an administrator to define such a cache pool and assign it to an existing pool via dashboard:</p>
<a name="Purpose"></a>
<h3 >Purpose<a href="#Purpose" class="wiki-anchor">¶</a></h3>
<p>Use a pool of fast storage devices (probably SSDs) and use it as a cache for an existing slower and larger pool.</p>
<p>Use a replicated pool as a front-end to service most I/O, and destage cold data to a separate erasure coded pool that does not currently (and cannot efficiently) handle the workload.</p>
<p>We should be able to create and add a cache pool to an existing pool of data, and later remove it, without disrupting service or migrating data around.</p>
<a name="See-also"></a>
<h3 >See also:<a href="#See-also" class="wiki-anchor">¶</a></h3>
<p><a class="external" href="http://lists.ceph.com/pipermail/ceph-users-ceph.com/2016-October/013880.html">http://lists.ceph.com/pipermail/ceph-users-ceph.com/2016-October/013880.html</a><br /><a class="external" href="http://docs.ceph.com/docs/master/rados/operations/cache-tiering/">http://docs.ceph.com/docs/master/rados/operations/cache-tiering/</a><br /><a class="external" href="https://www.packtpub.com/packtlib/book/Application-Development/9781784393502/8/ch08lvl1sec91/Creating%20a%20pool%20for%20cache%20tiering">https://www.packtpub.com/packtlib/book/Application-Development/9781784393502/8/ch08lvl1sec91/Creating%20a%20pool%20for%20cache%20tiering</a></p> Dashboard - Feature #25164 (New): mgr/dashboard: Display basic performance/utilization metrics of...https://tracker.ceph.com/issues/251642018-07-30T14:30:23ZStephan Müller
<p>When clicking on a pool in the list of pools, the pool details should show graphs of the pool's performance and utilization.</p> Dashboard - Tasks #25163 (New): mgr/dashboard: Extend the Ceph pool by configurationshttps://tracker.ceph.com/issues/251632018-07-30T14:26:53ZStephan Müller
<p>The ceph pool details found on /api/pools aren't complete yet and shall be extended by the missing configurations listed in <a class="external" href="http://docs.ceph.com/docs/master/rados/operations/pools/#get-pool-values">http://docs.ceph.com/docs/master/rados/operations/pools/#get-pool-values</a>.</p> Dashboard - Tasks #25162 (New): API interceptor should handle client and server side offline statushttps://tracker.ceph.com/issues/251622018-07-30T14:25:02ZStephan Müller
<p>API interceptor should handle client and server side offline status</p> Dashboard - Feature #25160 (New): mgr/dashboard: Create a "Create Ceph Cluster Pool Configuration...https://tracker.ceph.com/issues/251602018-07-30T14:19:56ZStephan Müller
<p>This issue is a port from this openATTIC <a href="https://tracker.openattic.org/browse/OP-1072" class="external">issue</a>.<br />For all comments and pictures please look at the original issue.</p>
<p>This Wizard should consist of these three steps:</p>
<ol>
<li>Provide a check list of options that this cluster will be used for. e.g. "openstack", "iSCSI", RGW, CephFS. Also, ask for the expected final size of this cluster.</li>
<li>Generate a dialog similar to the ceph PG calculator, which contains a table of all pools that will be created. each pool should be editable and removable.</li>
<li>Apply</li>
</ol>
<p>This wizard will only be useful, if the cluster is newly created.</p>
<p>Original Description for creating a single pool:</p>
<blockquote>
<p>Once the basic/generic functionality for creating a Ceph Pool exists (e.g. the required REST API call), we should consider creating a "Create Pool" Wizard, that guides the user through the required steps.</p>
<p>Some rough notes about this that were gathered during a call with SUSE about this:</p>
<p>First step after installation - creation of a Crush map depending if there is just one set of disks (one size, all rotational) vs. rotating disk plus SSDs (likely two different sizes?)<br />(<strong>Not</strong> for SSDs used as journal devices)</p>
<p>Crush Map creation? All your disks in one rule set, or use two separate groupings? Reason: to constrain what disks a pool can use (e.g. for creating a cache pool)<br />Can I query an OSD for the size of its disk?<br />Propose a grouping based on what is reported.</p>
<p>Create a pool for one of the following purposes</p>
<p>- Replicated or Erasure Coded? => Explain the pros and cons in sidebar<br />- Cache tiering (only if there are separate rule sets)</p>
<p>If Erasure Coded: Propose k/m values e.g. 5/3 4/2 (dropdown showing existing profiles), algorithm</p>
<p>- Suggest conservative Placement Group Number (use pgcalc algorithm?) (Hint that it can't be decreased and depends on the estimated number of Pools, probably propose a conservative number)<br />Maybe a Checkbox? "Do you intend to create additional pools?"</p>
<p>- Block devices (iSCSI), Virtual Machine Images<br />- Generic object storage</p>
<p>Note: (Cache tiering does not work with RBDs)</p>
<p>- (CephFS)</p>
</blockquote>
<p>Also Seel: <a class="external" href="http://ceph.com/pgcalc/">http://ceph.com/pgcalc/</a></p> Dashboard - Feature #25159 (New): mgr/dashboard: Add CRUSH ruleset management to CRUSH viewerhttps://tracker.ceph.com/issues/251592018-07-30T14:07:19ZStephan Müller
<p>Add support to view / create / update / delete a crush ruleset in the CRUSH map viewer.</p>