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synapse/debian/synctl.ronn

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synctl(1) -- Synapse server control interface
=============================================
## SYNOPSIS
Start, stop or restart synapse server.
`synctl` {start|stop|restart} [configfile] [-w|--worker=<WORKERCONFIG>] [-a|--all-processes=<WORKERCONFIGDIR>]
## DESCRIPTION
**synctl** can be used to start, stop or restart Synapse server. The
control operation can be done on all processes or a single worker
process.
## OPTIONS
* `action`:
The value of action should be one of `start`, `stop` or `restart`.
* `configfile`:
Optional path of the configuration file to use. Default value is
`homeserver.yaml`. The configuration file must exist for the
operation to succeed.
* `-w`, `--worker`:
Perform start, stop or restart operations on a single worker.
Incompatible with `-a`|`--all-processes`. Value passed must be a
valid worker's configuration file.
* `-a`, `--all-processes`:
Perform start, stop or restart operations on all the workers in
the given directory and the main synapse process. Incompatible
with `-w`|`--worker`. Value passed must be a directory containing
valid work configuration files. All files ending with `.yaml`
extension shall be considered as configuration files and all other
files in the directory are ignored.
## CONFIGURATION FILE
Configuration file may be generated as follows:
$ python -m synapse.app.homeserver -c config.yaml --generate-config --server-name=<server name>
## ENVIRONMENT
* `SYNAPSE_CACHE_FACTOR`:
Synapse's architecture is quite RAM hungry currently - we deliberately
cache a lot of recent room data and metadata in RAM in order to speed up
common requests. We'll improve this in the future, but for now the easiest
way to either reduce the RAM usage (at the risk of slowing things down)
is to set the almost-undocumented ``SYNAPSE_CACHE_FACTOR`` environment
variable. The default is 0.5, which can be decreased to reduce RAM usage
in memory constrained enviroments, or increased if performance starts to
degrade.
However, degraded performance due to a low cache factor, common on
machines with slow disks, often leads to explosions in memory use due
backlogged requests. In this case, reducing the cache factor will make
things worse. Instead, try increasing it drastically. 2.0 is a good
starting value.
## COPYRIGHT
This man page was written by Sunil Mohan Adapa <<sunil@medhas.org>> for
Debian GNU/Linux distribution.
## SEE ALSO
synapse_port_db(1), hash_password(1), register_new_matrix_user(1), synapse_review_recent_signups(1)