Change compression algoritm for diagnostic snapshot

[Sergey Galkin]

We have https://bugs.launchpad.net/mos/+bug/1382511

I tried to use xz -9 for snapshot with /var/log/ = 2.9 G and have this results.

305M ноя 20 10:28 fuel-snapshot-2014-11-20_06-35-34.tar.gz
132M ноя 20 10:05 fuel-snapshot-2014-11-20_06-35-34.tar.xz

Can we use xz for snapshots in the Fuel ?

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/135912

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/5.1
Review: https://review.openstack.org/135913

[OpenStack Infra (hudson-openstack)]

Change abandoned by Vladimir Kozhukalov (<email address hidden>) on branch: stable/5.1
Review: https://review.openstack.org/135913
Reason: This change is to be back ported from master.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/136361

[Dmitry Pyzhov (dpyzhov)]

We need to compare possible solutions and choose the best one. See this e-mail thread: http://lists.openstack.org/pipermail/openstack-dev/2014-November/051268.html

[OpenStack Infra (hudson-openstack)]

Related fix proposed to branch: master
Review: https://review.openstack.org/157331

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/157344

[Dima Shulyak (dshulyak)]

Assigning back to fuel-python, will get back to them ater ff

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/157331
Committed: https://git.openstack.org/cgit/stackforge/fuel-main/commit/?id=404e7a7eec0f43976ecd1c1e6dc096de6641d631
Submitter: Jenkins
Branch: master

commit 404e7a7eec0f43976ecd1c1e6dc096de6641d631
Author: Dmitry Shulyak <email address hidden>
Date: Thu Feb 19 13:13:25 2015 +0200

    Add xz to shotgun spec

    xz utils already installed on master host, but we need them in
    mcollective container

    Change-Id: I2d8cd154cdb258d590227565e34de748e9c71e5d
    Related-Bug: 1394487

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/157344
Committed: https://git.openstack.org/cgit/stackforge/fuel-web/commit/?id=a397cfe51887a163334ab12dc227090ce53125e7
Submitter: Jenkins
Branch: master

commit a397cfe51887a163334ab12dc227090ce53125e7
Author: Dmitry Shulyak <email address hidden>
Date: Thu Feb 19 14:04:03 2015 +0200

    Use xz as compression tool for snapshot

    Default compression level will: -3

    Played with it on logs with ~6Gb of data

    Snapshot compressed with:
    - gzip takes: 479m Mb
    - xz 3 level - 272 and takes 4 minutes
    - xz 9 level - 239 and takes ~ 30 min

    It is possible to use pixz utility that will run compressing
    on multiple cores, but i dont think it is wise to depend on it,
    because when master host will be installed on vm - it may take
    very long time to generate snapshot

    DocImpact
    Change-Id: I84e66e92ebc20ceba2db98ff41f08b1fde323c0b
    Closes-Bug: 1394487

[OpenStack Infra (hudson-openstack)]

Change abandoned by Aleksey Kasatkin (<email address hidden>) on branch: master
Review: https://review.openstack.org/135912
Reason: Covered by https://review.openstack.org/157344

[Anastasia Palkina (apalkina)]

Verified on ISO #226

"build_id": "2015-03-24_22-54-44", "ostf_sha": "a4cf5f218c6aea98105b10c97a4aed8115c15867", "build_number": "226", "release_versions": {"2014.2-6.1": {"VERSION": {"build_id": "2015-03-24_22-54-44", "ostf_sha": "a4cf5f218c6aea98105b10c97a4aed8115c15867", "build_number": "226", "api": "1.0", "nailgun_sha": "3b9f2c83c63653113701971492a6d8039db2cce2", "production": "docker", "python-fuelclient_sha": "3624051242c83fdbdd1df9a0e466797c06b75043", "astute_sha": "631f96d5a09cc48bfbddcbf056b946c8a80438f0", "feature_groups": ["mirantis"], "release": "6.1", "fuelmain_sha": "320b5f46fc1b2798f9e86ed7df51d3bda1686c10", "fuellib_sha": "acd7659a727ab890076de41272c2054744be4d20"}}}, "auth_required": true, "api": "1.0", "nailgun_sha": "3b9f2c83c63653113701971492a6d8039db2cce2", "production": "docker", "python-fuelclient_sha": "3624051242c83fdbdd1df9a0e466797c06b75043", "astute_sha": "631f96d5a09cc48bfbddcbf056b946c8a80438f0", "feature_groups": ["mirantis"], "release": "6.1", "fuelmain_sha": "320b5f46fc1b2798f9e86ed7df51d3bda1686c10", "fuellib_sha": "acd7659a727ab890076de41272c2054744be4d20"

[OpenStack Infra (hudson-openstack)]

Change abandoned by Vladimir Kozhukalov (<email address hidden>) on branch: master
Review: https://review.openstack.org/136361