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| author | Jenkins <jenkins@review.openstack.org> | 2015-12-03 07:16:03 +0000 |
|---|---|---|
| committer | Gerrit Code Review <review@openstack.org> | 2015-12-03 07:16:03 +0000 |
| commit | 36fc947b1543f0fa1a898cd34a6d1b8312e7ae5b (patch) | |
| tree | 85200659bb513e478b2e81afd6d98c5dfc6ae4a3 | |
| parent | b6ad95e1caa19a755e11077facaa2022b64d0cf0 (diff) | |
| parent | cc97ba2e17d48cc5fa02f8d9c32b2e0ffacab1a6 (diff) | |
| download | oslo-messaging-36fc947b1543f0fa1a898cd34a6d1b8312e7ae5b.tar.gz | |
Merge "doc: explain rpc call/cast expection"
| -rw-r--r-- | oslo_messaging/rpc/client.py | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/oslo_messaging/rpc/client.py b/oslo_messaging/rpc/client.py index f67f673..7beea84 100644 --- a/oslo_messaging/rpc/client.py +++ b/oslo_messaging/rpc/client.py @@ -356,6 +356,10 @@ class RPCClient(object): Similarly, the request context must be a dict unless the client's serializer supports serializing another type. + Note: cast doesn't ensure the remote method to be been executed + on each destination. But ensures that it will be not executed twice + on a destination. + :param ctxt: a request context dict :type ctxt: dict :param method: the method name @@ -392,6 +396,12 @@ class RPCClient(object): allowed_remote_exmods list, then a messaging.RemoteError exception is raised with all details of the remote exception. + Note: call is done 'at-most-once'. In case of we can't known + if the call have been done correctly, because we didn't get the + response on time, MessagingTimeout exception is raised. + The real reason can vary, transport failure, worker + doesn't answer in time or crash, ... + :param ctxt: a request context dict :type ctxt: dict :param method: the method name |