From 93b61589b0bdb3845ee839e9c2a4e1adb06bd483 Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Wed, 27 Jan 2021 14:06:27 +0000 Subject: Add a note to changelog about redis usage (#9227) --- CHANGES.md | 6 ++++++ changelog.d/9227.misc | 1 + docs/workers.md | 5 ++++- 3 files changed, 11 insertions(+), 1 deletion(-) create mode 100644 changelog.d/9227.misc diff --git a/CHANGES.md b/CHANGES.md index fb07650c2c..c9b6a13d7f 100644 --- a/CHANGES.md +++ b/CHANGES.md @@ -1,3 +1,9 @@ +Unreleased +========== + +Note that this release includes a change in Synapse to use Redis as a cache ─ as well as a pub/sub mechanism ─ if Redis support is enabled. No action is needed by server administrators, and we do not expect resource usage of the Redis instance to change dramatically. + + Synapse 1.26.0rc2 (2021-01-25) ============================== diff --git a/changelog.d/9227.misc b/changelog.d/9227.misc new file mode 100644 index 0000000000..a6cb77fbb2 --- /dev/null +++ b/changelog.d/9227.misc @@ -0,0 +1 @@ +Precompute joined hosts and store in Redis. diff --git a/docs/workers.md b/docs/workers.md index d01683681f..d2927d95a6 100644 --- a/docs/workers.md +++ b/docs/workers.md @@ -40,6 +40,9 @@ which relays replication commands between processes. This can give a significant cpu saving on the main process and will be a prerequisite for upcoming performance improvements. +If Redis support is enabled Synapse will use it as a shared cache, as well as a +pub/sub mechanism. + See the [Architectural diagram](#architectural-diagram) section at the end for a visualisation of what this looks like. @@ -271,7 +274,7 @@ using): Note that a HTTP listener with `client` and `federation` resources must be configured in the `worker_listeners` option in the worker config. -Ensure that all SSO logins go to a single process (usually the main process). +Ensure that all SSO logins go to a single process (usually the main process). For multiple workers not handling the SSO endpoints properly, see [#7530](https://github.com/matrix-org/synapse/issues/7530). -- cgit 1.4.1