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path: root/manifests/profile/pacemaker/cinder/volume.pp
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2017-01-25Composable HAMichele Baldessari1-1/+21
This commit implements composable HA for the pacemaker profiles. - Everytime a pacemaker resource gets included on a node, that node will add a node cluster property with the name of the resource (e.g. galera-role=true) - Add a location rule constraint to force running the resource only on the nodes that have that property - We also make sure that any pacemaker resource/property creation has a predefined number of tries (20 by default). The reason for this is that within composable HA, it might be possible to get "older CIB" errors when another node changed the CIB while we were doing an operation on it. Simply retrying fixes this. - Also make sure that we use the newly introduced pacemaker::constraint::order class instead of the older pacemaker::constraint::base class. The former uses the push_cib() function and hence behaves correctly in case multiple nodes try to modify the CIB at the same time. Change-Id: I63da4f48da14534fd76265764569e76300534472 Depends-On: Ib931adaff43dbc16220a90fb509845178d696402 Depends-On: I8d78cc1b14f0e18e034b979a826bf3cdb0878bae Depends-On: Iba1017c33b1cd4d56a3ee8824d851b38cfdbc2d3
2017-01-18Do not depend on bootstrap_nodeid for any pacemaker profileMichele Baldessari1-2/+2
When we create a pacemaker resource it must happen from a single node. If it happens from multiple nodes an immediate error will be returned by pcs. For the pacemaker roles we enforce this by leveraging the recently introduced <SERVICE_NAME_bootstrap_short_node_name> which gives us the first hostname per-service, regardless of the role. (introduced via I03e8685f939e8ae1fcd8b16883b559615042505d) With this approach if a pacemaker service belongs to two different roles (say role Controller on node A and role galera on node B), it will only create the resource from one of the two and not both (which would return an error). Only setting Partial-Bug for this one, because it addresses the issue from the pacemaker resource creation POV (which is always affected). But the issue itself is a race that we're theoretically affected by since the composable roles work landed. While I have tried to fix the more general case in previous attempts, I think it is best if we start a discussion on how to fix it, because each approach has a bunch of potential drawbacks and is quite invasive on how we do things. A discussion slot for this has been proposed for the Atlanta PTG. Change-Id: I662398cab60d523d204b57a5674ca8f5c0f2e68a Partial-Bug: #1615983
2016-10-03Fix the timeout for pacemaker systemd resourcesMichele Baldessari1-1/+3
Back in the Mitaka cycle via the change If6b43982c958f63bc78ad997400bf1279c23df7e we made sure that the default start and stop timeouts for pacemaker systemd resources is 200s (>= twice the default 90s DefaultTimeoutStopSec in systemd). We did this change by setting puppet resource defaults for the Pacemaker::Resource::Service class: Pacemaker::Resource::Service { op_params => 'start timeout=200s stop timeout=200s', } The problem is that after the composable services rework, this does not work anymore and the pacemaker systemd resources that still exist do not have these timeouts set. We want to move away from resource defaults for this because its results are dependent on the inclusion order which in tripleo is not guaranteed any longer (https://docs.puppet.com/puppet/latest/reference/lang_scope.html#scope-lookup-rules) The only services affected in Newton are: cinder-volume, cinder-backup, manila-share, haproxy. I preferred fixing all the pacemaker resources because it seems the cleanest and most logical commit. Change-Id: If89a95706514e536a7a2949871a0002c79b6046e Closes-Bug: #1629366
2016-08-30Write restart flags to restart services only when necessaryJiri Stransky1-0/+6
Write restart flag file for services managed by Pacemaker into /var/lib/tripleo/pacemaker-restarts directory. The name of the file must match the name of the clone resource defined in pacemaker. The post-puppet restart script will restart each service having a restart flag file and remove those files. This approach focuses on $pacemaker_master only (we don't want to restart the pacemaker services 3 times when we have 3 controllers), so it relies on the assumption that we're making the matching config changes across the pacemaker nodes. Change-Id: I6369ab0c82dbf3c8f21043f8aa9ab810744ddc12
2016-08-08Fix parameters and headers inconsistency in the puppet manifests.Carlos Camacho1-1/+0
As we are staring to manually check overcloud services the first step is to check that the puppet profiles are all aligned. Changes applied: No logic added or removed in this submission. Removed unused parameters. Align header comments structure. All profiles parameters sorted following: "Mandatory params first sorted alphabetically then optional params sorted alphabetically." Note: Following submissions will check pacemaker, cinder, mistral and redis services in the base profiles as some of them has the $pacemaker_master parameter defaulted to true. Change-Id: I2f91c3f6baa33f74b5625789eec83233179a9655
2016-08-01Next generation HA architecture workMichele Baldessari1-17/+1
This change moves the cinder-volume/cinder-scheduler constraints in the cinder-scheduler profile as these can't be applied by the cinder-volume service when cinder-scheduler isn't managed by Pacemaker. Blueprint: https://blueprints.launchpad.net/tripleo/+spec/ha-lightweight-architecture Change-Id: I5e7585c08675d8a4bd071523b94210d325d79b59 Implements: blueprint ha-lightweight-architecture Co-Author: cmsj@tenshu.net
2016-06-02Add Cinder API/Scheduler/Volume rolesGiulio Fidente1-0/+70
Includes both the base and the pacemaker roles. Change-Id: I3c6d5226eed5f0f852b0ad9476c7cd9a959fda69