CaaS3: Update hostname

Posted on Tue 18 December 2018 in Linux • Tagged with suse, caas, kubernetes, linux, notepad • 1 min read 

linux-q0sf:~ # cat /var/lib/misc/infra-secrets/mariadb-root-password  
eVSf9Ss/HFa4Rj68ymzhmVsHvhdV6i5aqUpXuboMGRdwo1SVnysDd/wg0De+9FJymdBsJLdmYsdU

linux-q0sf:~ # docker exec -ti d72182149834 bash  
bash-4.3# mysql -u root -p  
Enter password:  
Welcome to the MariaDB monitor. Commands end with ; or \g.  
Your MariaDB connection id is 18  
Server version: 10.0.34-MariaDB SLE …

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ceph - sort osds by utilisation

Posted on Thu 20 September 2018 in Ceph • Tagged with ceph, crush, linux, notepad, code • 1 min read

Version 1: keep it simple

$ ceph osd df  | awk '{ print "osd."$1, "size: "$5, "usage: " $8 }' | sort -nk5

OSDs can be listed twice - depends on the crushmap.

Version 2: json + python

$ ceph osd df tree -f json | python sort_hdd_osds.py
osd.28  utilization: 15.278888
osd.15  utilization: 19.700484 …

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ceph - wrong osd id with lvm+filestore

Posted on Wed 04 July 2018 in Ceph • Tagged with bluestore, ceph, ceph-ansible, LVM, linux, notepad, howto • 2 min read

Not sure why...but i've found a strange ceph-volume behavior with lvm and filestore.

ceph-volume lvm list shows the wrong osd id while the affected osd is online with a another id.

$ mount | grep ceph-2
/dev/mapper/vg00-datalv1 on /var/lib/ceph/osd/ceph-2 type xfs (rw,relatime,seclabel,attr2 …

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SUSE Cloud – missing cinder key on computes - part2

Posted on Thu 07 December 2017 in openstack • Tagged with ceph, Openstack, suse cloud, SUSE Linux Enterprise Server, cinder, notepad, linux • 1 min read

I've found the root cause for the missing cinder key on the computes.

chef-client output - without any files:

[2017-11-30T09:37:33+01:00] INFO: Processing package[ceph-common] action install (nova::ceph line 50)
[2017-11-30T09:37:33+01:00] INFO: Ceph configuration file is …

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ovirt/rhev/rhv - stucked/locked task

Posted on Wed 06 December 2017 in ovirt • Tagged with ovirt, RHEV, notepad, linux • 1 min read

Query locked elements:

PGPASSWORD=password /usr/share/ovirt-engine/setup/dbutils/unlock_entity.sh -d engine -u engine -t [all|disk|vm|template] -q

Remove lock:

PGPASSWORD=password /usr/share/ovirt-engine/setup/dbutils/unlock_entity.sh -d engine -u engine -t [all|disk|vm|template] -r

SUSE Cloud - missing cinder key on computes

Posted on Fri 17 November 2017 in openstack • Tagged with ceph, Openstack, suse cloud, SUSE Linux Enterprise Server, cinder, notepad, linux • 1 min read 

2017-11-01 14:30:53.970 27835 ERROR nova.virt.libvirt.driver [instance: c5618826-98cb-4fd6-9d6f-b8899bd320b7] libvirtError: Secret not found: no secret with matching uuid '5b7c1b36-
9093-4a13-b14d-da8b8cbdd8a6'
2017-11-01 14:30:53.970 27835 ERROR nova.virt.libvirt.driver [instance: c5618826 …

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SUSE Openstack Cloud - debugging sleshammer

Posted on Fri 10 November 2017 in openstack • Tagged with Openstack, suse cloud, SUSE Linux Enterprise Server, cinder, notepad, linux • 1 min read

Slug: suse-openstack-cloud-debugging-sleshammer Status: published

To get a login shell during the discovery and [before]{.underline} the nfs is mounted:

Add the DISCOVERY_ROOT_PASSWORD parameter

root@admin:~ # crowbarctl proposal edit provisioner default

{
  "id": "provisioner-default",
  "description": "Created on Thu, 09 Nov 2017 15:43:20 +0100",
  "attributes": {
    "provisioner": {
[...]
      "discovery": {
        "append": "DISCOVERY_ROOT_PASSWORD=replace-with-your-password"
      }
[...]
    }
}

root …

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chrony - adjust time manually

Posted on Fri 22 September 2017 in Linux • Tagged with chrony, Linux, Notepad, Work • 1 min read 

$ chronyc -m "password $( awk '{ print $2 }' /etc/chrony/chrony.keys  )" makestep

openstack kolla - docker dependency tree

Posted on Thu 29 June 2017 in openstack • Tagged with openstack, kolla, linux, notepad • 1 min read

kolla dependency tree created via 

# kolla-build --save-dependency /tmp/kolla-dependency -p fullbuild

ceph metasearch – elasticsearch backend - part 2

Posted on Thu 27 April 2017 in Ceph • Tagged with ceph, elasticsearch, radosgw, howto, linux, notepad, work • 2 min read

ceph-kraken

requirements

  • ceph cluster (kraken release)
  • elasticsearch

The rgw syncer is only used/triggered in multisite configurations - so we need to setup a second zone for the metasearch.

environment / settings
export rgwhost="192.168.122.80"
export elastichost="192.168.122.71"
export realm="demo"
export zonegrp="zone-1"
export 1zone="zone1-a …

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