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It is required to use https scheme and different host to download
packages from maven repository.
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This closes #371 issue on GitHub.
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This patch includes packaging changes - update unit-go installation
directory.
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For backward compatibility, the Linux capabilities macros exposes v1 semantics
(32-bit) by default. We probe the version at runtime (because of pre-compiled
binaries) but the kernel syscall API is conservative and it doesn't return a
64-bit capability version if the input version is v1.
This patch suppress the kernel > 5.0 dmesg log below:
capability: warning: 'unitd' uses 32-bit capabilities (legacy support in use)
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Each request processed in a separate goroutine. In case of OOSM state,
during response write, request goroutine blocks on channel which waits
event from main thread about SHM_ACK message from router.
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ServerResponse.write() method tries to write data buffer using libunit
and stores buffers to write in a Server-wide output queue, which is
processed in response to SHM_ACK message from router.
As a side effect 'drain' event implemented and socket.writable flag
reflect current state.
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- OOSM (out of shared memory). Sent by application process to router
when application reaches the limit of allocated shared memory and
needs more.
- SHM_ACK. Sent by router to application when the application's shared
memory is released and the OOSM flag is enabled for the segment.
This implements blocking mode (the library waits for SHM_ACK in case of
out of shared memory condition and retries allocating the required memory
amount) and non-blocking mode (the library notifies the application that
it's out of shared memory and returns control to the application module
that sets up the output queue and puts SHM_ACK in the main message loop).
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The function unchains the buffer from the buffer's linked list.
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Current shared memory buffer implementation uses fixed-size memory blocks,
allocating at least 16384 bytes. When application sends data in a large
number of small chunks, it makes sense to buffer them or use plain
memory buffers to improve performance and reduce memory footprint.
This patch introduces minimum size limit (1024 bytes) for shared
memory buffers.
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This patch includes packaging changes related to files move.
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To support Go modules, the unit-go module should be platform independent.
All platform-dependent logic is moved to libunit, so the unit-dev package
should be installed before building unit-go.
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They actually have been broken since 00d8049418cf,
where NXT_VERSION was removed from nxt_main.h.
Also, shebang is added.
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This is an optimization to avoid creating them at runtime on each request.
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Temporary file name with configure process PID used to download
JAR from external repository. Then file renamed using command 'mv'.
The issue reproduced in clean environment when 2 or more concurrent builds
started.
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The setuid/setgid syscalls requires root capabilities but if the kernel
supports unprivileged user namespace then the child process has the full
set of capabilities in the new namespace, then we can allow setting "user"
and "group" in such cases (this is a common security use case).
Tests were added to ensure user gets meaningful error messages for
uid/gid mapping misconfigurations.
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This is required to avoid include cycles, as some nxt_clone_* functions
depend on the credential structures, but nxt_process depends on clone
structures.
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Introduces the functions nxt_process_init_create() and
nxt_process_init_creds_set().
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This changes the language versions we provide:
- python 3.5 -> python 3.7
- go 1.7/1.8 -> go 1.11
- perl 5.24 -> perl 5.28
- ruby 2.3 -> ruby 2.5
- php 7.0 -> php 7.3
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Now the nxt_user_groups_get() function uses getgrouplist(3) when available
(except MacOS, see below). For some platforms, getgrouplist() supports
a method of probing how much groups the user has but the behavior is not
consistent. The method used here consists of optimistically trying to get up
to min(256, NGROUPS_MAX) groups; only if ngroups returned exceeds the original
value, we do a second call. This method can block main's process if LDAP/NDIS+
is in use.
MacOS has getgrouplist(3) but it's buggy. It doesn't update ngroups if the
value passed is smaller than the number of groups the user has. Some
projects (like Go stdlib) call getgrouplist() in a loop, increasing ngroups
until it exceeds the number of groups user belongs to or fail when a limit
is reached. For performance reasons, this is to be avoided and MacOS is
handled in the fallback implementation.
The fallback implementation is the old Unit approach. It saves main's
user groups (getgroups(2)) and then calls initgroups(3) to load application's
groups in main, then does a second getgroups(2) to store the gids and restore
main's groups in the end. Because of initgroups(3)' call to setgroups(2),
this method requires root capabilities. In the case of OSX, which has
small NGROUPS_MAX by default (16), it's not possible to restore main's groups
if it's large; if so, this method fallbacks again: user_cred gids aren't
stored, and the worker process calls initgroups() itself and may block for
some time if LDAP/NDIS+ is in use.
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The reason for the change is that the req_app_link reference count
was incorrect if the application crashed at start; in this case,
the nxt_request_app_link_update_peer() function was never called.
This closes #332 issue on GitHub.
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- The mode of testdir was changed to allow reading from other users/groups.
- The java multipart test now uploads the file into an app writable dir.
- The build directory was made readable for other users.
- The python environment test now uses the HOME env var instead of PWD
because the latter is not set by the root shell (/bin/sh) by default.
- The node `node_modules` directory now is copied into the `testdir` instead
of using symlinks.
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In particular, it was previously broken on Ubuntu 19.10 and Fedora 31.
See for details: https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=2ab5741
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