[Bug 1563393] [NEW] [FFe Needed] Update nginx to 1.9.13.

Thomas Ward teward at trekweb.org
Tue Mar 29 15:36:45 UTC 2016


Public bug reported:

NGINX has recently uploaded 1.9.13.  There are included in this upload
multiple bug fixes, but also changes to include support for other
features in the modules.

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The upstream changelog is as follows:
(http://nginx.org/en/CHANGES)

Changes with nginx 1.9.13                                        29 Mar
2016

    *) Change: non-idempotent requests (POST, LOCK, PATCH) are no longer
       passed to the next server by default if a request has been sent to a
       backend; the "non_idempotent" parameter of the "proxy_next_upstream"
       directive explicitly allows retrying such requests.

    *) Feature: the ngx_http_perl_module can be built dynamically.

    *) Feature: UDP support in the stream module.

    *) Feature: the "aio_write" directive.

    *) Feature: now cache manager monitors number of elements in caches and
       tries to avoid cache keys zone overflows.

    *) Bugfix: "task already active" and "second aio post" alerts might
       appear in logs when using the "sendfile" and "aio" directives with
       subrequests.

    *) Bugfix: "zero size buf in output" alerts might appear in logs if
       caching was used and a client closed a connection prematurely.

    *) Bugfix: connections with clients might be closed needlessly if
       caching was used.
       Thanks to Justin Li.

    *) Bugfix: nginx might hog CPU if the "sendfile" directive was used on
       Linux or Solaris and a file being sent was changed during sending.

    *) Bugfix: connections might hang when using the "sendfile" and "aio
       threads" directives.

    *) Bugfix: in the "proxy_pass", "fastcgi_pass", "scgi_pass", and
       "uwsgi_pass" directives when using variables.
       Thanks to Piotr Sikora.

    *) Bugfix: in the ngx_http_sub_filter_module.

    *) Bugfix: if an error occurred in a cached backend connection, the
       request was passed to the next server regardless of the
       proxy_next_upstream directive.

    *) Bugfix: "CreateFile() failed" errors when creating temporary files on
       Windows.

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Rationale for Update:

A longer term goal of the Server Team is to have NGINX 1.10.x (the next
stable release of NGINX) in Ubuntu Xenial, either as a post-Xenial-
release SRU, or right before we release, depending on when NGINX
releases the 1.10.x branch (which is based off the 1.9.x branch).

To reduce the delta between merges, and to reduce the amount of work
necessary to switch from 1.9.x to 1.10.x in the future of Xenial, it is
more preferable to have the latest 1.9.x available as close to 1.10.x
release as possible; this makes it much more easier to deal with build
failures, or to troubleshoot issues between versions, as there is less
of an upstream delta.

There are new features, however they do not affect the default
configuration, and some feature additions are not yet implemented
(dynamic modules are available, but not user-friendly nor are they
incorporated into the packaging at this time).

We have other bugfixes, as well, for other functions in the system,
which should all be included.

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Security Considerations:

HTTP/2
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* HTTP/2 is disabled in the NGINX builds currently. This is at the request of the Security Team. There is no security concern of HTTP/2 in this release.

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Files to be uploaded (Pending creation) for FFe Consideration:

* Debdiff between 1.9.12-0ubuntu1 and 1.9.13-0ubuntu1 (direct upload)
* Local sbuild logs (amd64, i386), including 'lintian' checks
* Installation log (Xenial amd64 VM)

** Affects: nginx (Ubuntu)
     Importance: Wishlist
         Status: New


** Tags: xenial

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https://bugs.launchpad.net/bugs/1563393

Title:
  [FFe Needed] Update nginx to 1.9.13.

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