Merge pull request #4260 from matrix-org/rav/python3

Notes on upgrading to python3, and README updates.
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Richard van der Hoff 2018-12-04 14:46:31 +01:00 committed by GitHub
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@ -86,7 +86,7 @@ Synapse is the reference Python/Twisted Matrix homeserver implementation.
System requirements: System requirements:
- POSIX-compliant system (tested on Linux & OS X) - POSIX-compliant system (tested on Linux & OS X)
- Python 2.7 - Python 3.5, 3.6, or 2.7
- At least 1GB of free RAM if you want to join large public rooms like #matrix:matrix.org - At least 1GB of free RAM if you want to join large public rooms like #matrix:matrix.org
Installing from source Installing from source
@ -101,13 +101,13 @@ header files for Python C extensions.
Installing prerequisites on Ubuntu or Debian:: Installing prerequisites on Ubuntu or Debian::
sudo apt-get install build-essential python2.7-dev libffi-dev \ sudo apt-get install build-essential python3-dev libffi-dev \
python-pip python-setuptools sqlite3 \ python-pip python-setuptools sqlite3 \
libssl-dev python-virtualenv libjpeg-dev libxslt1-dev libssl-dev python-virtualenv libjpeg-dev libxslt1-dev
Installing prerequisites on ArchLinux:: Installing prerequisites on ArchLinux::
sudo pacman -S base-devel python2 python-pip \ sudo pacman -S base-devel python python-pip \
python-setuptools python-virtualenv sqlite3 python-setuptools python-virtualenv sqlite3
Installing prerequisites on CentOS 7 or Fedora 25:: Installing prerequisites on CentOS 7 or Fedora 25::
@ -126,12 +126,9 @@ Installing prerequisites on Mac OS X::
Installing prerequisites on Raspbian:: Installing prerequisites on Raspbian::
sudo apt-get install build-essential python2.7-dev libffi-dev \ sudo apt-get install build-essential python3-dev libffi-dev \
python-pip python-setuptools sqlite3 \ python-pip python-setuptools sqlite3 \
libssl-dev python-virtualenv libjpeg-dev libssl-dev python-virtualenv libjpeg-dev
sudo pip install --upgrade pip
sudo pip install --upgrade ndg-httpsclient
sudo pip install --upgrade virtualenv
Installing prerequisites on openSUSE:: Installing prerequisites on openSUSE::
@ -146,20 +143,21 @@ Installing prerequisites on OpenBSD::
To install the Synapse homeserver run:: To install the Synapse homeserver run::
virtualenv -p python2.7 ~/.synapse mkdir -p ~/synapse
source ~/.synapse/bin/activate virtualenv -p python3 ~/synapse/env
source ~/synapse/env/bin/activate
pip install --upgrade pip pip install --upgrade pip
pip install --upgrade setuptools pip install --upgrade setuptools
pip install matrix-synapse pip install matrix-synapse
This installs Synapse, along with the libraries it uses, into a virtual This installs Synapse, along with the libraries it uses, into a virtual
environment under ``~/.synapse``. Feel free to pick a different directory environment under ``~/synapse/env``. Feel free to pick a different directory
if you prefer. if you prefer.
This Synapse installation can then be later upgraded by using pip again with the This Synapse installation can then be later upgraded by using pip again with the
update flag:: update flag::
source ~/.synapse/bin/activate source ~/synapse/env/bin/activate
pip install -U matrix-synapse pip install -U matrix-synapse
In case of problems, please see the _`Troubleshooting` section below. In case of problems, please see the _`Troubleshooting` section below.
@ -240,7 +238,7 @@ commandline script.
To get started, it is easiest to use the command line to register new users:: To get started, it is easiest to use the command line to register new users::
$ source ~/.synapse/bin/activate $ source ~/synapse/env/bin/activate
$ synctl start # if not already running $ synctl start # if not already running
$ register_new_matrix_user -c homeserver.yaml https://localhost:8448 $ register_new_matrix_user -c homeserver.yaml https://localhost:8448
New user localpart: erikj New user localpart: erikj
@ -266,13 +264,12 @@ Running Synapse
=============== ===============
To actually run your new homeserver, pick a working directory for Synapse to To actually run your new homeserver, pick a working directory for Synapse to
run (e.g. ``~/.synapse``), and:: run (e.g. ``~/synapse``), and::
cd ~/.synapse cd ~/synapse
source ./bin/activate source env/bin/activate
synctl start synctl start
Connecting to Synapse from a client Connecting to Synapse from a client
=================================== ===================================
@ -380,35 +377,17 @@ the generated config),
https://www.archlinux.org/packages/community/any/python2-matrix-angular-sdk/ will also need to https://www.archlinux.org/packages/community/any/python2-matrix-angular-sdk/ will also need to
be installed. be installed.
Alternatively, to install using pip a few changes may be needed as ArchLinux
defaults to python 3, but synapse currently assumes python 2.7 by default:
pip may be outdated (6.0.7-1 and needs to be upgraded to 6.0.8-1 ):: pip may be outdated (6.0.7-1 and needs to be upgraded to 6.0.8-1 )::
sudo pip2.7 install --upgrade pip sudo pip install --upgrade pip
You also may need to explicitly specify python 2.7 again during the install
request::
pip2.7 install https://github.com/matrix-org/synapse/tarball/master
If you encounter an error with lib bcrypt causing an Wrong ELF Class: If you encounter an error with lib bcrypt causing an Wrong ELF Class:
ELFCLASS32 (x64 Systems), you may need to reinstall py-bcrypt to correctly ELFCLASS32 (x64 Systems), you may need to reinstall py-bcrypt to correctly
compile it under the right architecture. (This should not be needed if compile it under the right architecture. (This should not be needed if
installing under virtualenv):: installing under virtualenv)::
sudo pip2.7 uninstall py-bcrypt sudo pip uninstall py-bcrypt
sudo pip2.7 install py-bcrypt sudo pip install py-bcrypt
During setup of Synapse you need to call python2.7 directly again::
cd ~/.synapse
python2.7 -m synapse.app.homeserver \
--server-name machine.my.domain.name \
--config-path homeserver.yaml \
--generate-config
...substituting your host and domain name as appropriate.
FreeBSD FreeBSD
------- -------
@ -475,7 +454,7 @@ You can fix this by manually upgrading pip and virtualenv::
sudo pip install --upgrade virtualenv sudo pip install --upgrade virtualenv
You can next rerun ``virtualenv -p python2.7 synapse`` to update the virtual env. You can next rerun ``virtualenv -p python3 synapse`` to update the virtual env.
Installing may fail during installing virtualenv with ``InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.`` Installing may fail during installing virtualenv with ``InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.``
You can fix this by manually installing ndg-httpsclient:: You can fix this by manually installing ndg-httpsclient::
@ -524,16 +503,6 @@ log lines and looking for any 'Processed request' lines which take more than
a few seconds to execute. Please let us know at #matrix-dev:matrix.org if a few seconds to execute. Please let us know at #matrix-dev:matrix.org if
you see this failure mode so we can help debug it, however. you see this failure mode so we can help debug it, however.
ArchLinux
~~~~~~~~~
If running `$ synctl start` fails with 'returned non-zero exit status 1',
you will need to explicitly call Python2.7 - either running as::
python2.7 -m synapse.app.homeserver --daemonize -c homeserver.yaml
...or by editing synctl with the correct python executable.
Upgrading an existing Synapse Upgrading an existing Synapse
============================= =============================
@ -731,7 +700,7 @@ port:
* Until v0.33.3, Synapse did not support SNI on the federation port * Until v0.33.3, Synapse did not support SNI on the federation port
(`bug #1491 <https://github.com/matrix-org/synapse/issues/1491>`_). This bug (`bug #1491 <https://github.com/matrix-org/synapse/issues/1491>`_). This bug
is now fixed, but means that federating with older servers can be unreliable is now fixed, but means that federating with older servers can be unreliable
when using name-based virtual hosting. when using name-based virtual hosting.
Furthermore, a number of the normal reasons for using a reverse-proxy do not Furthermore, a number of the normal reasons for using a reverse-proxy do not

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@ -51,11 +51,70 @@ returned by the Client-Server API:
Upgrading to v0.34.0 Upgrading to v0.34.0
==================== ====================
This release removes the ``riot.im`` from the default list of trusted identity servers. 1. This release is the first to fully support Python 3. We recommend switching
to Python 3, as it has been shown to give performance improvements.
For users who have installed Synapse into a virtualenv, we recommend doing
this by creating a new virtualenv. For example::
virtualenv -p python3 ~/synapse/env3
source ~/synapse/env3/bin/activate
pip install matrix-synapse
You can then start synapse as normal, having activated the new virtualenv::
cd ~/synapse
source env3/bin/activate
synctl start
Users who have installed from distribution packages should see the relevant
package documentation.
* When upgrading to Python 3, you **must** make sure that your log files are
configured as UTF-8, by adding ``encoding: utf8`` to the
``RotatingFileHandler`` configuration (if you have one) in your
``<server>.log.config`` file. For example, if your ``log.config`` file
contains::
handlers:
file:
class: logging.handlers.RotatingFileHandler
formatter: precise
filename: homeserver.log
maxBytes: 104857600
backupCount: 10
filters: [context]
console:
class: logging.StreamHandler
formatter: precise
filters: [context]
Then you should update this to be::
handlers:
file:
class: logging.handlers.RotatingFileHandler
formatter: precise
filename: homeserver.log
maxBytes: 104857600
backupCount: 10
filters: [context]
encoding: utf8
console:
class: logging.StreamHandler
formatter: precise
filters: [context]
There is no need to revert this change if downgrading to Python 2.
2. This release removes the ``riot.im`` from the default list of trusted
identity servers.
If ``riot.im`` is in your homeserver's list of
``trusted_third_party_id_servers``, you should remove it. It was added in
case a hypothetical future identity server was put there. If you don't
remove it, users may be unable to deactivate their accounts.
If ``riot.im`` is in your homeserver's list of ``trusted_third_party_id_servers``,
you should remove it. It was added in case a hypothetical future identity server was
put there. If you don't remove it, users may be unable to deactivate their accounts.
Upgrading to v0.33.7 Upgrading to v0.33.7
==================== ====================

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@ -0,0 +1 @@
Update README.rst and UPGRADE.rst for Python 3.