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| author | melanie witt <melwittt@gmail.com> | 2020-03-11 02:26:52 +0000 |
|---|---|---|
| committer | Vlad Gusev <vlad.esten@gmail.com> | 2020-04-24 18:20:41 +0300 |
| commit | 11daac03bf4d33c77c7bc6f037bc16972ad64ea4 (patch) | |
| tree | 08a95b33fcf000b2bd11fe1d74bda2c88c41d964 /nova/conf | |
| parent | f50bd6e65758c7c3f3b433a1e66bd8c94f6947f8 (diff) | |
| download | nova-11daac03bf4d33c77c7bc6f037bc16972ad64ea4.tar.gz | |
Add config option for neutron client retries
Nova can occasionally fail to carry out server actions which require
calls to neutron API if haproxy happens to close a connection after
idle time if an incoming request attempts to re-use the connection
while it is being torn down.
In order to be more resilient to this scenario, we can add a config
option for neutron client to retry requests, similar to our existing
CONF.cinder.http_retries and CONF.glance.num_retries options.
Because we create our neutron client [1] using a keystoneauth1 session
[2], we can set the 'connect_retries' keyword argument to let
keystoneauth1 handle connection retries.
Conflicts:
nova/conf/neutron.py
NOTE(s10): conflict is due to Id7c2f0b53c8871ff47a836ec4c324c8cce430b79
not being in Queens.
Closes-Bug: #1866937
[1] https://github.com/openstack/nova/blob/57459c3429ce62975cebd0cd70936785bdf2f3a4/nova/network/neutron.py#L226-L237
[2] https://docs.openstack.org/keystoneauth/latest/api/keystoneauth1.session.html#keystoneauth1.session.Session
Change-Id: Ifb3afb13aff7e103c2e80ade817d0e63b624604a
(cherry picked from commit 0e34ed9733e3f23d162e3e428795807386abf1cb)
(cherry picked from commit 71971c206292232fff389dedbf412d780f0a557a)
(cherry picked from commit a96e7ab83066bee0a13a54070aab988396bae320)
(cherry picked from commit 6bed39cd6e77744ca4bbad9dba3f68c78cdc1ec0)
Diffstat (limited to 'nova/conf')
| -rw-r--r-- | nova/conf/neutron.py | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/nova/conf/neutron.py b/nova/conf/neutron.py index 48cadc77ce..d828f8ca80 100644 --- a/nova/conf/neutron.py +++ b/nova/conf/neutron.py @@ -77,6 +77,20 @@ needs to create a resource in Neutron it will requery Neutron for the extensions that it has loaded. Setting value to 0 will refresh the extensions with no wait. """), + cfg.IntOpt('http_retries', + default=3, + min=0, + help=""" +Number of times neutronclient should retry on any failed http call. + +0 means connection is attempted only once. Setting it to any positive integer +means that on failure connection is retried that many times e.g. setting it +to 3 means total attempts to connect will be 4. + +Possible values: + +* Any integer value. 0 means connection is attempted only once +"""), ] metadata_proxy_opts = [ |