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Nginx [nginx-announce] unit-1.21.0

Discussion in 'Nginx and PHP-FPM news & discussions' started by eva2000, Nov 20, 2020.

  1. eva2000

    eva2000 Administrator Staff Member

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    Hi,

    I'm glad to announce a new release of NGINX Unit.

    Our two previous releases were thoroughly packed with new features and
    capabilities, but Unit 1.21.0 isn't an exception either. This is our
    third big release in a row, with only six weeks since the previous one!

    Perhaps, the most notable feature of this release is the support for
    multithreaded request handling in application processes. Now, you can
    fine-tune the number of threads used for request handling in each
    application process; this improves scaling and optimize memory usage.

    As a result, your apps can use a combination of multiple processes and
    multiple threads per each process for truly dynamic scaling; the feature
    is available for any Java, Python, Perl, or Ruby apps out of the box
    without any need to update their code.

    Moreover, if you make use of ASGI support in Unit (introduced in the
    previous release), each thread of each process of your application
    can run asynchronously. Pretty neat, huh?

    To configure the number of threads per process, use the "threads" option
    of the application object:

    - https://unit.nginx.org/configuration/#applications

    Yet another cool feature is the long-awaited support for regular expressions.
    In Unit, they enable granular request filtering and routing via our compound
    matching rules; now, with PCRE syntax available, your request matching
    capabilities are limited only by your imagination. For details and examples,
    see our documentation:

    - https://unit.nginx.org/configuration/#routes


    Changes with Unit 1.21.0 19 Nov 2020

    *) Change: procfs is mounted by default for all languages when "rootfs"
    isolation is used.

    *) Change: any characters valid according to RFC 7230 are now allowed in
    HTTP header field names.

    *) Change: HTTP header fields with underscores ("_") are now discarded
    from requests by default.

    *) Feature: optional multithreaded request processing for Java, Python,
    Perl, and Ruby apps.

    *) Feature: regular expressions in route matching patterns.

    *) Feature: compatibility with Python 3.9.

    *) Feature: the Python module now supports ASGI 2.0 legacy applications.

    *) Feature: the "protocol" option in Python applications aids choice
    between ASGI and WSGI.

    *) Feature: the fastcgi_finish_request() PHP function that finalizes
    request processing and continues code execution without holding onto
    the client connection.

    *) Feature: the "discard_unsafe_fields" HTTP option that enables
    discarding request header fields with irregular (but still valid)
    characters in the field name.

    *) Feature: the "procfs" and "tmpfs" automount isolation options to
    disable automatic mounting of eponymous filesystems.

    *) Bugfix: the router process could crash when running Go applications
    under high load; the bug had appeared in 1.19.0.

    *) Bugfix: some language dependencies could remain mounted after using
    "rootfs" isolation.

    *) Bugfix: various compatibility issues in Java applications.

    *) Bugfix: the Java module built with the musl C library couldn't run
    applications that use "rootfs" isolation.


    Also, packages for Ubuntu 20.10 "Groovy" are available in our repositories:

    - https://unit.nginx.org/installation/#ubuntu-2010

    Thanks to Sergey Osokin, the FreeBSD port of Unit now provides an almost
    exhaustive set of language modules:

    - https://www.freshports.org/www/unit/

    We encourage you to follow our roadmap on GitHub, where your ideas and requests
    are always more than welcome:

    - https://github.com/orgs/nginx/projects/1

    Stay tuned!

    wbr, Valentin V. Bartenev



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