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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 …

ceph radosgw (set)lifecycle - AWS v4 is broken

Posted on Wed 26 April 2017 in Ceph • Tagged with ceph, elasticsearch, radosgw, howto, linux, notepad, work • 1 min read

First - s3cmd config
Setting signature_v2 = true is not enough! You have to set --signature-v2 as a parameter.

Second - 'Prefix' tag
You have specify a Prefix tag - and yes with a captial P!

without prefix tag

<LifecycleConfiguration>
    <Rule>
        <ID>ExampleRule</ID>
    <Status>Enabled</Status>
        <Expiration>
             <Days>1</Days>
        </Expiration>
    </Rule>
</LifecycleConfiguration …

ceph metasearch - elasticsearch backend

Posted on Fri 21 April 2017 in Ceph • Tagged with ceph, elasticsearch, radosgw, howto, linux, notepad, work • 1 min read

ceph-kraken

Fetch zonegroup configuration (json struct)

# radosgw-admin zonegroup get > /tmp/zonegroup.json

change the tier_type to elasticsearch

Import the configuration

# radosgw-admin zonegroup set --infile /tmp/zonegroup.json

Fetch zone configuration (json struct)

# radosgw-admin zone get > /tmp/zone.json

Add the following parameter endpoint & {url} for the section tier_config

    "tier_config": [
        {
            "key": "endpoint …

Fixing ceph partition uuid or OSD data dir is not mounted

Posted on Mon 06 February 2017 in Ceph • Tagged with ceph, linux, notepad, work • 1 min read

OSD_UUID

4fbd7e29-9d25-41b8-afd0-062c0ceff05d

JOURNAL_UUID

45b0969e-9b03-4f30-b4c6-b4b80ceff106

To fix the partition uuid

sgdisk --info=##partnr## -t ##partnr##:##part-uuid## /dev/##disk##

eg.
sgdisk --info=1 -t 1:4fbd7e29-9d25-41b8-afd0-062c0ceff05d /dev/sda1

Ref: /lib/udev/rules.d/95-ceph-osd.rules

Openstack Manila with CephFS as backend [notepad]

Posted on Thu 22 December 2016 in openstack • Tagged with ceph, Openstack, linux, notepad, work • 1 min read

openstack-manila-cephfs

ceph - setting up rbd-mirror between two ceph clusters

Posted on Sat 15 October 2016 in Ceph • Tagged with ceph, rbdmirror, howto, linux, notepad, work • 3 min read

Environment
2x ceph cluster (aio) running centos 7.2 /w ceph jewel. Added a 2nd crush rule to both clusters:

rule rep_osd {
    ruleset 1
    type replicated
    min_size 1
    max_size 10
    step take default
    step choose firstn 0 type osd
    step emit
}

(ceph crush map)

Setup

Install the rbd-mirror package in …

Google Software Updater fuckups

Posted on Thu 22 September 2016 in Linux • Tagged with notepad, osx, linux, Google Chrome • 1 min read

google-software-updater

To disable the ksfetch (ks = keystone) daemon (which comes with google products) there are several ways to do this.

Uninstall the Google Software Update Agent

$ /Library/Google/GoogleSoftwareUpdate/GoogleSoftwareUpdate.bundle \
    /Contents/Resources/GoogleSoftwareUpdateAgent.app/Contents/Resources/ksinstall [--nuke]

The --nuke parameter will also remove ksfetch related stuff.

Set the checkInterval …

ejabberd + letsencrypt (ssl config)

Posted on Mon 05 September 2016 in Linux • Tagged with letsencrypt, Linux, notepad, ejabberd • 1 min read

[...]
listen: 
  - 
    port: 5222
    module: ejabberd_c2s
    certfile: "/etc/ejabberd/ejabberd.pem"
    starttls: true
    starttls_required: true
    protocol_options:
      - "no_sslv2"
      - "no_sslv3"
      - "no_tlsv1"
      - "no_tlsv1_1"
    ciphers: "ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256"
    dhfile: "/etc/ejabberd/dh2048.pem"
    [...]
  - 
    port: 5269
    ip: "::"
    module: ejabberd_s2s_in
    protocol_options:
      - "no_sslv2"
      - "no_sslv3"
      - "no_tlsv1"
      - "no_tlsv1_1"

[...]
s2s_use_starttls: required
s2s_certfile: "/etc/ejabberd …

RHEV/ovirt - can't switch SPM role - async_tasks are stucked

Posted on Mon 29 August 2016 in ovirt • Tagged with KVM, Linux, ovirt, RHEV, rev, redhat • 1 min read

On the host with the SPM role

$ vdsClient -s 0 getAllTasksStatuses
{'status': {'message': 'OK', 'code': 0}, 'allTasksStatus': {'feb3aaa5-ec1c-42a6-8f17-f7c94891b43f': {'message': '1 jobs completed successfully', 'code': 0, 'taskID': '631fd441-0955-49da-9376-1cba24764aa7', 'taskResult': 'success', 'taskState': 'finished'}, 'b4fe0c6d-d458-4ed2-a9e2-2c0d41914b8f': {'message': '1 jobs completed successfully', 'code': 0, 'taskID': '67e1a2e8-3747-43fa-b0dd-fc469a6f6a02', 'taskResult': 'success',
'taskState': 'finished'}}}

On the RHEV/ovirt manager …

RHEV/ovirt - find stucked / zombie tasks

Posted on Sun 14 August 2016 in ovirt • Tagged with KVM, Linux, RHEV, rev, redhat • 1 min read

Random notes

$ vdsClient -s 0 getAllTasksStatuses
$ vdsClient stopTask 
$ vdsClient clearTask

$ su - postgres
$ psql -d engine -U postgres
> select * from job order by start_time desc;
> select DeleteJob('702e9f6a-e2a3-4113-bd7d-3757ba6bc4ef');

/usr/share/ovirt-engine/dbscripts/engine-psql.sh -c "select * from job;"

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