When swift-proxy was seperated from controller, memcached communication error occured

[ByungYeol Woo]

When swif-proxy was seperated from controller, memcached ECONNREFUSED error occured.

There are no memchaced in swift-proxy-server. So I think memcache_servers in proxy-server.conf.j2 needs to be changed from 'swift-proxy-server' to 'memcached'.

==== ERROR LOGS:
2018-05-31T02:21:02Zsyslog.local0.err{"Payload":"swift-proxy-server: STDERR: ERROR:root:Error connecting to memcached: 192.168.20.6:11211: [Errno 111] ECONNREFUSED (txn: txd95c7a64e9c4457595832-005b0f5c0e)\u0000","log_level":"err","Hostname":"swift03","programname":"swift"}

==== part of proxy-server.conf.j2
[filter:cache]
use = egg:swift#memcache
memcache_servers = {% for host in groups['swift-proxy-server'] %}{{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ memcached_port }}{% if not loop.last %},{% endif %}{% endfor %}

[zibort (zibort)]

May be it will be nice to start memcached container on swift-proxy-server, when swift-proxy-server is not on controller?

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/686975

[Mark Goddard (mgoddard)]

@Lev, memcached doesn't need to be colocated with swift-proxy. We just need to fix the connection string to reference the memcached group.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/686975
Committed: https://git.openstack.org/cgit/openstack/kolla-ansible/commit/?id=3488479d06bc9fc39058532d29229b67f25d4ec0
Submitter: Zuul
Branch: master

commit 3488479d06bc9fc39058532d29229b67f25d4ec0
Author: Mark Goddard <email address hidden>
Date: Mon Oct 7 09:22:24 2019 +0100

    Fix swift-proxy-server memcached configuration

    Currently, swift-proxy config uses hosts in the swift-proxy-server group
    to generate the list of memcached servers. However, memcached is
    deployed to hosts in the memcached group.

    This change fixes the memcached_servers option for swift-proxy to be the
    same as other services.

    Change-Id: Ib850a1bb2a504ac3e1396846ca3f1d9a30e8fca0
    Closes-Bug: #1774313

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/stein
Review: https://review.opendev.org/687236

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/rocky
Review: https://review.opendev.org/687237

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/queens
Review: https://review.opendev.org/687238

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/687238
Committed: https://git.openstack.org/cgit/openstack/kolla-ansible/commit/?id=422682006cb98adf1028ed8f29429f0b647960c7
Submitter: Zuul
Branch: stable/queens

commit 422682006cb98adf1028ed8f29429f0b647960c7
Author: Mark Goddard <email address hidden>
Date: Mon Oct 7 09:22:24 2019 +0100

    Fix swift-proxy-server memcached configuration

    Currently, swift-proxy config uses hosts in the swift-proxy-server group
    to generate the list of memcached servers. However, memcached is
    deployed to hosts in the memcached group.

    This change fixes the memcached_servers option for swift-proxy to be the
    same as other services.

    Change-Id: Ib850a1bb2a504ac3e1396846ca3f1d9a30e8fca0
    Closes-Bug: #1774313
    (cherry picked from commit 3488479d06bc9fc39058532d29229b67f25d4ec0)

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/687237
Committed: https://git.openstack.org/cgit/openstack/kolla-ansible/commit/?id=78b7086605c7f25cc3ca8e14d04836e46d2f0f76
Submitter: Zuul
Branch: stable/rocky

commit 78b7086605c7f25cc3ca8e14d04836e46d2f0f76
Author: Mark Goddard <email address hidden>
Date: Mon Oct 7 09:22:24 2019 +0100

    Fix swift-proxy-server memcached configuration

    Currently, swift-proxy config uses hosts in the swift-proxy-server group
    to generate the list of memcached servers. However, memcached is
    deployed to hosts in the memcached group.

    This change fixes the memcached_servers option for swift-proxy to be the
    same as other services.

    Change-Id: Ib850a1bb2a504ac3e1396846ca3f1d9a30e8fca0
    Closes-Bug: #1774313
    (cherry picked from commit 3488479d06bc9fc39058532d29229b67f25d4ec0)

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/687236
Committed: https://git.openstack.org/cgit/openstack/kolla-ansible/commit/?id=8db18241cb2830d1f158a301f1a0de8b23d42c37
Submitter: Zuul
Branch: stable/stein

commit 8db18241cb2830d1f158a301f1a0de8b23d42c37
Author: Mark Goddard <email address hidden>
Date: Mon Oct 7 09:22:24 2019 +0100

    Fix swift-proxy-server memcached configuration

    Currently, swift-proxy config uses hosts in the swift-proxy-server group
    to generate the list of memcached servers. However, memcached is
    deployed to hosts in the memcached group.

    This change fixes the memcached_servers option for swift-proxy to be the
    same as other services.

    Change-Id: Ib850a1bb2a504ac3e1396846ca3f1d9a30e8fca0
    Closes-Bug: #1774313
    (cherry picked from commit 3488479d06bc9fc39058532d29229b67f25d4ec0)

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/kolla-ansible 6.2.3 release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/kolla-ansible 9.0.0.0rc1 release candidate.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/kolla-ansible 7.2.0 release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/kolla-ansible 8.1.0 release.