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authorErik Johnston <erik@matrix.org>2020-03-30 16:37:24 +0100
committerGitHub <noreply@github.com>2020-03-30 16:37:24 +0100
commit4f21c33be301b8ea6369039c3ad8baa51878e4d5 (patch)
tree82e127e643b07b00e3afa63d2c1ea99a8d856c70 /docs
parentMerge pull request #7160 from matrix-org/dbkr/always_send_own_device_list_upd... (diff)
downloadsynapse-4f21c33be301b8ea6369039c3ad8baa51878e4d5.tar.xz
Remove usage of "conn_id" for presence. (#7128)
* Remove `conn_id` usage for UserSyncCommand.

Each tcp replication connection is assigned a "conn_id", which is used
to give an ID to a remotely connected worker. In a redis world, there
will no longer be a one to one mapping between connection and instance,
so instead we need to replace such usages with an ID generated by the
remote instances and included in the replicaiton commands.

This really only effects UserSyncCommand.

* Add CLEAR_USER_SYNCS command that is sent on shutdown.

This should help with the case where a synchrotron gets restarted
gracefully, rather than rely on 5 minute timeout.
Diffstat (limited to 'docs')
-rw-r--r--docs/tcp_replication.md6
1 files changed, 6 insertions, 0 deletions
diff --git a/docs/tcp_replication.md b/docs/tcp_replication.md
index d4f7d9ec18..3be8e50c4c 100644
--- a/docs/tcp_replication.md
+++ b/docs/tcp_replication.md
@@ -198,6 +198,12 @@ Asks the server for the current position of all streams.
 
    A user has started or stopped syncing
 
+#### CLEAR_USER_SYNC (C)
+
+   The server should clear all associated user sync data from the worker.
+
+   This is used when a worker is shutting down.
+
 #### FEDERATION_ACK (C)
 
    Acknowledge receipt of some federation data