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The WSGI environment dictionary contains a number of static items, that are
pre-initialized on application start. Then it's copied for each request to be
filled with request-related data.
Now this dictionary copy operation will be done between processing of requests,
which should save some CPU cycles during request processing and thus reduce
response latency for non-peak load periods.
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The code had a wrong assumption that "mount namespaces" automatically
unmounts process mounts when exits but this happens only with
unprivileged mounts.
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Prerequisite checks moved to the fixture in conftest.py.
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This change eliminates the need for some classes
to run Unit one more time before running tests.
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Ruby threads need to be created with GVL; otherwise, an attempt to access
locked resources may occur, causing a crash.
The issue was occasionally reproduced on Ubuntu 18.04 with Ruby 2.5.1
while running test_ruby_application_threads.
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While alternating between running priv and unpriv tests
locally, it happens that unpriv tests can't bind mount
or create sub directories inside directories created
by root. This patch fixes this by pointing "rootfs"
to temporary directory.
Now the priv and unpriv test uses the same test function.
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This closes #498 issue on GitHub.
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According to Section #3.1.2 of RFC 7230, after the status code
there must be a space even if the reason phrase is empty.
Also, only 3 digits allowed.
This closes #507 issue on GitHub.
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This fixes a crash on exit of Node.js application. The crash reproduced
on Ubuntu 20.10 with Node.js v15.1.0. Tests 'test_node_websockets_two_clients'
and 'test_node_websockets_7_13_1__7_13_2'.
The reason of the crash is using request struct which was already freed.
The issue was introduced in 5be509fda29e.
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This change is necessary to separate the logic
and prevent possible circular dependency.
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Warnings changed for debug messages.
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If shared queue is empty, allocated read buffer should be explicitly
released.
Found by Coverity (CID 363943).
The issue was introduced in f5ba5973a0a3.
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Removing unnecessary context operations from shared queue processing loop.
Initializing temporary queues only when required.
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The issue occurred under highly concurrent request load in Go applications.
Such applications are multi-threaded but use a single libunit context; any
thread-safe code in the libunit context is only required for Go applications.
As a result of improper request state reset, the recycled request structure was
recovered in the released state, so further operations with this request
resulted in 'response already sent' warnings. However, the actual response was
never delivered to the router and the client.
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The issue only occurred in Go applications because "port_send" is overloaded
only in Go. To reproduce it, send multiple concurrent requests to the
application after it has initialised. The warning message "[unit] [go] port
NNN:dd not found" is the first visible aspect of the issue; the second and more
valuable one is a closed connection, an error response, or a hanging response to
some requests.
When the application starts, it is unaware of the router's worker thread ports,
so it requests the ports from the router after receiving requests from the
corresponding router worker threads. When multiple requests are processed
simultaneously, the router port may be required by several requests, so request
processing starts only after the application receives the required port
information. The port should be added to the Go port repository after its
'ready' flag is updated. Otherwise, Unit may start processing some requests and
use the port before it is in the repository.
The issue was introduced in changeset 78836321a126.
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Debug logging depends on macros defined in nxt_auto_config.h.
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Previously, all requests that contained in header field names characters other
than alphanumeric, or "-", or "_" were rejected with a 400 "Bad Request" error
response.
Now, the parser allows the same set of characters as specified in RFC 7230,
including: "!", "#", "$", "%", "&", "'", "*", "+", ".", "^", "`", "|", and "~".
Header field names that contain only these characters are considered valid.
Also, there's a new option introduced: "discard_unsafe_fields". It accepts
boolean value and it is set to "true" by default.
When this option is "true", all header field names that contain characters
in valid range, but other than alphanumeric or "-" are skipped during parsing.
When the option is "false", these header fields aren't skipped.
Requests with non-valid characters in header field names according to
RFC 7230 are rejected regardless of "discard_unsafe_fields" setting.
This closes #422 issue on GitHub.
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Now users can disable the default procfs mount point
in the rootfs.
{
"isolation": {
"automount": {
"procfs": false
}
}
}
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KeyboardInterrupt re-raised.
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Now users can disable the default tmpfs mount point
in the rootfs.
{
"isolation": {
"automount": {
"tmpfs": false
}
}
}
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Different applications cannot reuse the same rootfs path
if not using namespaces because of globally visible
builtin mount points.
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This closes #219 issue on GitHub.
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The php_request_shutdown() function calls sapi_deactivate() that tries to read
request body into a dummy buffer. In our case it's just waste of CPU cycles.
This change is also required for the following implementation of the
fastcgi_finish_request() function, where the request context can be
cleared by the time of finalization.
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Application shared queue only capable to pass one shared memory buffer.
The rest buffers in chain needs to be send directly to application in response
to REQ_HEADERS_AC message.
The issue can be reproduced for configurations where 'body_buffer_size' is
greater than memory segment size (10 Mb). Requests with body size greater
than 10 Mb are just `stuck` e.g. not passed to application awaiting for more
data from router.
The bug was introduced in 1d84b9e4b459 (v1.19.0).
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Introducing manual protocol selection for 'universal' apps and frameworks.
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Thanks to @wujjpp.
This closes #490 PR on GitHub.
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