Red Hat Bugzilla – Bug 1434521
Generated RHEL7 MapR images fail without mariadb-server
Last modified: 2017-05-17 16:10:36 EDT
Description of problem: The generated RHEL7 image for MapR don't work because they try to start mariadb.service, but mariadb-server is not installed so it fails because the unit is not found. That is probably due to mapping issues regarding mysql and RHEL (https://github.com/openstack/sahara-image-elements/blob/3446f21130a137eb02c642fe086454c8ef754f57/elements/mysql/pkg-map#L23). Found on: sahara-image-elements-6.0.0-3.el7ost diskimage-builder-1.27.1-0.20170302013848.65c6da5.el7ost.noarch python-sahara-6.0.0-2.el7ost.noarch openstack-sahara-api-6.0.0-2.el7ost.noarch openstack-sahara-engine-6.0.0-2.el7ost.noarch openstack-sahara-common-6.0.0-2.el7ost.noarch openstack-sahara-6.0.0-2.el7ost.noarch
This bugzilla has been removed from the release and needs to be reviewed and Triaged for another Target Release.
This looks like a blocker for the two Sahara RFEs, that are targeted for OSP11: https://bugzilla.redhat.com/show_bug.cgi?id=1337664 https://bugzilla.redhat.com/show_bug.cgi?id=1393498
Is this an image different than a regular overcloud image? If so, where is this generated? These are the packages that are installed by default on an overcloud image: mariadb-galera-server-5.5.42-5.el7ost.x86_64 mariadb-galera-common-5.5.42-5.el7ost.x86_64 galera-25.3.5-7.el7ost.x86_64 And there is a systemctl service "mariadb.service" as well. Are there any other logs available, showing the error you saw?
I will leave more details to Raissa, but: - this is not an overcloud image. This is a user image, the one you run inside an existing overcloud. No tripleo involvement here. - this was generated with sahara-image-elements. My guess is the mapping of the components in the mysql element of DIB is incorrect for RHEL7 and mariadb-server is not installed (it tries to install mysql-server and it fails during the building process). Interesting to know that this was informally tested for Newton and it was working, so not sure what happened (maybe a change in DIB).
Luigi summed it up, it is the RHEL 7 image we use to spawn a cluster in Sahara - in this case using the MapR plugin. I logged into the instances created with the image and checked that mariadb-server wasn't installed, so the log is pretty straightforward: Details: Cluster in Error state with a message below: Creating cluster failed for the following reason(s): RemoteCommandException: Error during command execution: "service mariadb restart" Return code: 5 STDERR: Redirecting to /bin/systemctl restart mariadb.service Failed to restart mariadb.service: Unit not found.
MapR clusters spawned with RHEL images generated with sahara-image-elements now start successfully. sahara-image-elements-6.0.0-6.el7ost.noarch diskimage-builder-1.27.1-0.20170302013848.65c6da5.el7ost.noarch dib-utils-0.0.11-1.el7ost.noarch
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHEA-2017:1245