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Squashed commit of the following: commitb5c55faf98Author: Neil Alexander <neilalexander@users.noreply.github.com> Date: Fri Jul 1 12:00:32 2022 +0100 Version 0.8.9 (#2549) * Version 0.8.9 * Update changelog commitb50a24c666Author: Neil Alexander <neilalexander@users.noreply.github.com> Date: Fri Jul 1 10:54:07 2022 +0100 Roomserver producers package (#2546) * Give the roomserver a producers package * Change init point * Populate ACLs API * Fix build issues * `RoomEventProducer` naming commit89cd0e8fc1Author: Till <2353100+S7evinK@users.noreply.github.com> Date: Fri Jul 1 11:49:26 2022 +0200 Try to fix backfilling (#2548) * Try to fix backfilling * Return start/end to not confuse clients * Update GMSL * Update GMSL commit086f182e24Author: Neil Alexander <neilalexander@users.noreply.github.com> Date: Fri Jul 1 09:50:06 2022 +0100 Disable WebAssembly builds for now commit54bed4c593Author: Neil Alexander <neilalexander@users.noreply.github.com> Date: Fri Jul 1 09:37:54 2022 +0100 Blacklist `Guest users can join guest_access rooms` test until it can be investigated commit561c159ad7Author: Till <2353100+S7evinK@users.noreply.github.com> Date: Thu Jun 30 12:34:37 2022 +0200 Silence presence logs (#2547) commit519bc1124bAuthor: Neil Alexander <neilalexander@users.noreply.github.com> Date: Wed Jun 29 15:29:39 2022 +0100 Add `evacuateUser` endpoint, use it when deactivating accounts (#2545) * Add `evacuateUser` endpoint, use it when deactivating accounts * Populate the API * Clean up user devices when deactivating * Include invites, delete pushers commit2dea466685Author: Neil Alexander <neilalexander@users.noreply.github.com> Date: Wed Jun 29 12:32:24 2022 +0100 Return an error if trying to invite a malformed user ID (#2543) commit2086992cafAuthor: Till <2353100+S7evinK@users.noreply.github.com> Date: Wed Jun 29 10:49:12 2022 +0200 Don't return `end` if there are not more messages (#2542) * Be more spec compliant * Move lazyLoadMembers to own method commit920a20821bAuthor: Jean Lucas <jean@4ray.co> Date: Mon Jun 27 04:15:19 2022 -0400 Fix nats.go commit (#2540) Signed-off-by: Jean Lucas <jean@4ray.co> commit7120eb6bc9Author: Neil Alexander <neilalexander@users.noreply.github.com> Date: Wed Jun 15 14:27:07 2022 +0100 Add `InputDeviceListUpdate` to the keyserver, remove old input API (#2536) * Add `InputDeviceListUpdate` to the keyserver, remove old input API * Fix copyright * Log more information when a device list update fails commit1b90cc9536Author: Till <2353100+S7evinK@users.noreply.github.com> Date: Wed Jun 15 12:50:02 2022 +0200 Fix rare panic when returning user devices over federation (#2534) commit4c2a10f1a6Author: Neil Alexander <neilalexander@users.noreply.github.com> Date: Mon Jun 13 15:11:10 2022 +0100 Handle state before, send history visibility in output (#2532) * Check state before event * Tweaks * Refactor a bit, include in output events * Don't waste time if soft failed either * Tweak control flow, comments, use GMSL history visibility type commitc500958583Author: Emanuele Aliberti <dev@mtka.eu> Date: Mon Jun 13 13:08:46 2022 +0200 generic CaddyFile in front of Dendrite (monolith) (#2531) for Caddy 2.5.x Co-authored-by: emanuele.aliberti <emanuele.aliberti@mtka.eu> commite1136f4d3eAuthor: Till Faelligen <davidf@element.io> Date: Mon Jun 13 11:46:59 2022 +0200 Make the linter happy again commit0a7f7dc716Author: Neil Alexander <neilalexander@users.noreply.github.com> Date: Mon Jun 13 10:16:30 2022 +0100 Add `--difference` to `resolve-state` tool commit89d2adadbdAuthor: Neil Alexander <neilalexander@users.noreply.github.com> Date: Fri Jun 10 10:58:04 2022 +0100 Attempt to raise the file descriptor limit at startup (#2527) commit1030072285Author: Neil Alexander <neilalexander@users.noreply.github.com> Date: Fri Jun 10 10:18:32 2022 +0100 Rename the page to "Optimise your installation" commit16ed1633b6Author: Neil Alexander <neilalexander@users.noreply.github.com> Date: Fri Jun 10 10:15:14 2022 +0100 Highlighting in docs commite2a64773ceAuthor: Neil Alexander <neilalexander@users.noreply.github.com> Date: Fri Jun 10 10:14:15 2022 +0100 Add new next steps page to the documentation commit660f7839f5Author: Till <2353100+S7evinK@users.noreply.github.com> Date: Thu Jun 9 18:38:07 2022 +0200 Correctly redact events over federation (#2526) * Ensure we check powerlevel/origin before redacting an event * Add passing test * Use pl.UserLevel * Make check more readable, also check for the sender
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2.2 KiB
Markdown
72 lines
2.2 KiB
Markdown
---
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title: Optimise your installation
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parent: Installation
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has_toc: true
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nav_order: 10
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permalink: /installation/start/optimisation
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---
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# Optimise your installation
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Now that you have Dendrite running, the following tweaks will improve the reliability
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and performance of your installation.
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## File descriptor limit
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Most platforms have a limit on how many file descriptors a single process can open. All
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connections made by Dendrite consume file descriptors — this includes database connections
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and network requests to remote homeservers. When participating in large federated rooms
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where Dendrite must talk to many remote servers, it is often very easy to exhaust default
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limits which are quite low.
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We currently recommend setting the file descriptor limit to 65535 to avoid such
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issues. Dendrite will log immediately after startup if the file descriptor limit is too low:
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```
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level=warning msg="IMPORTANT: Process file descriptor limit is currently 1024, it is recommended to raise the limit for Dendrite to at least 65535 to avoid issues"
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```
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UNIX systems have two limits: a hard limit and a soft limit. You can view the soft limit
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by running `ulimit -Sn` and the hard limit with `ulimit -Hn`:
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```bash
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$ ulimit -Hn
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1048576
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$ ulimit -Sn
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1024
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```
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Increase the soft limit before starting Dendrite:
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```bash
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ulimit -Sn 65535
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```
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The log line at startup should no longer appear if the limit is sufficient.
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If you are running under a systemd service, you can instead add `LimitNOFILE=65535` option
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to the `[Service]` section of your service unit file.
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## DNS caching
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Dendrite has a built-in DNS cache which significantly reduces the load that Dendrite will
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place on your DNS resolver. This may also speed up outbound federation.
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Consider enabling the DNS cache by modifying the `global` section of your configuration file:
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```yaml
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dns_cache:
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enabled: true
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cache_size: 4096
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cache_lifetime: 600s
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```
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## Time synchronisation
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Matrix relies heavily on TLS which requires the system time to be correct. If the clock
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drifts then you may find that federation no works reliably (or at all) and clients may
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struggle to connect to your Dendrite server.
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Ensure that the time is synchronised on your system by enabling NTP sync.
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