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Some lines (incorrectly) had an indentation of 3 or 5, or 7 or 9,
or 11 or 13, or 15 or 17 spaces instead of 4, 8, 12, or 16. Fix them.
Found with:
$ find src -type f | xargs grep -n '^ [^ ]';
$ find src -type f | xargs grep -n '^ [^ *]';
$ find src -type f | xargs grep -n '^ [^ ]';
$ find src -type f | xargs grep -n '^ [^ *]';
$ find src -type f | xargs grep -n '^ [^ +]';
$ find src -type f | xargs grep -n '^ [^ *+]';
$ find src -type f | xargs grep -n '^ [^ +]';
$ find src -type f | xargs grep -n '^ [^ *+]';
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After the c8790d2a89bb commit, the SIGCHLD handler may return before processing
all awaiting PIDs. To avoid zombie processes and ensure successful main
process termination, waitpid() must be called until an error is returned.
This closes #600 issue on GitHub.
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After the c8790d2a89bb commit, the SIGCHLD handler may return before processing
all awaiting PIDs. To avoid zombie processes and ensure successful main
process termination, waitpid() must be called until an error is returned.
This closes #600 issue on GitHub.
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Application process started with shared port (and queue) already configured.
But still waits for PORT_ACK message from router to start request processing
(so-called "ready state").
Waiting for router confirmation is necessary. Otherwise, the application may
produce response and send it to router before the router have the information
about the application process. This is a subject of further optimizations.
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This enables the reuse of process creation functions.
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Introducting application graceful stop. For now only used when application
process reach request limit value.
This closes #585 issue on GitHub.
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Declarations became unused after 6976d36be926.
No functional changes.
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Found by Clang Static Analyzer.
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This feature allows one to specify blocks of code that are called when certain
lifecycle events occur. A user configures a "hooks" property on the app
configuration that points to a script. This script will be evaluated on boot
and should contain blocks of code that will be called on specific events.
An example of configuration:
{
"type": "ruby",
"processes": 2,
"threads": 2,
"user": "vagrant",
"group": "vagrant",
"script": "config.ru",
"hooks": "hooks.rb",
"working_directory": "/home/vagrant/unit/rbhooks",
"environment": {
"GEM_HOME": "/home/vagrant/.ruby"
}
}
An example of a valid "hooks.rb" file follows:
File.write("./hooks.#{Process.pid}", "hooks evaluated")
on_worker_boot do
File.write("./worker_boot.#{Process.pid}", "worker booted")
end
on_thread_boot do
File.write("./thread_boot.#{Process.pid}.#{Thread.current.object_id}",
"thread booted")
end
on_thread_shutdown do
File.write("./thread_shutdown.#{Process.pid}.#{Thread.current.object_id}",
"thread shutdown")
end
on_worker_shutdown do
File.write("./worker_shutdown.#{Process.pid}", "worker shutdown")
end
This closes issue #535 on GitHub.
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For listen socket request reply port can be NULL if Router crashes immediately
after issuing the request.
Found by Coverity (CID 366310).
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This patch is required to remove fragmented messages functionality.
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Introducing manual protocol selection for 'universal' apps and frameworks.
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This closes #486 issue on GitHub.
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This closes #482 issue on GitHub.
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This closes #458 issue on GitHub.
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This closes #459 issue on GitHub.
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Now it is possible to specify the name of the application callable using
optional parameter 'callable'. Default value is 'application'.
This closes #290 issue on GitHub.
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Now it's possible to disable default bind mounts of
languages by setting:
{
"isolation": {
"automount": {
"language_deps": false
}
}
}
In this case, the user is responsible to provide a "rootfs"
containing the language libraries and required files for
the application.
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Previously, an error during the prefork phase triggered assert:
src/nxt_port.c:27 assertion failed: port->pair[0] == -1
and resulted in exiting of the main process.
This could be easily reproduced by pushing a configuration with "rootfs",
when daemon is running without required permissions.
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The process abstraction has changed to:
setup(task, process)
start(task, process_data)
prefork(task, process, mp)
The prefork() occurs in the main process right before fork.
The file src/nxt_main_process.c is completely free of process
specific logic.
The creation of a process now supports a PROCESS_CREATED state. The
The setup() function of each process can set its state to either
created or ready. If created, a MSG_PROCESS_CREATED is sent to main
process, where external setup can be done (required for rootfs under
container).
The core processes (discovery, controller and router) doesn't need
external setup, then they all proceeds to their start() function
straight away.
In the case of applications, the load of the module happens at the
process setup() time and The module's init() function has changed
to be the start() of the process.
The module API has changed to:
setup(task, process, conf)
start(task, data)
As a direct benefit of the PROCESS_CREATED message, the clone(2) of
processes using pid namespaces now doesn't need to create a pipe
to make the child block until parent setup uid/gid mappings nor it
needs to receive the child pid.
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This allows to specify multiple subsequent targets inside PHP applications.
For example:
{
"listeners": {
"*:80": {
"pass": "routes"
}
},
"routes": [
{
"match": {
"uri": "/info"
},
"action": {
"pass": "applications/my_app/phpinfo"
}
},
{
"match": {
"uri": "/hello"
},
"action": {
"pass": "applications/my_app/hello"
}
},
{
"action": {
"pass": "applications/my_app/rest"
}
}
],
"applications": {
"my_app": {
"type": "php",
"targets": {
"phpinfo": {
"script": "phpinfo.php",
"root": "/www/data/admin",
},
"hello": {
"script": "hello.php",
"root": "/www/data/test",
},
"rest": {
"root": "/www/data/example.com",
"index": "index.php"
},
}
}
}
}
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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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- Introduced nxt_runtime_process_port_create().
- Moved nxt_process_use() into nxt_process.c from nxt_runtime.c.
- Renamed nxt_runtime_process_remove_pid() as nxt_runtime_process_remove().
- Some public functions transformed to static.
This closes #327 issue on GitHub.
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This avoids memory leak reports from the address sanitizer.
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This patch closes #328 in github.
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When Unit starts, the main process waits for module discovery message for a
while. If a QUIT signal arrives at this time, the router and controller
processes created by main and Unit stay running. Also, the main process
doesn't stop them after the second QUIT signal is received in this case.
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The <sched.h> is already included by nxt_unix.h.
This closes #314 PR on GitHub.
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Found by Coverity (CID 349485).
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This closes #312 issue on GitHub.
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This is related to issue #198 on GitHub.
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There's nothing specific to Go language. This type of application object can
be used to run any external application that utilizes libunit API.
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Router requests application start by sending port message with application
parameters to master. In response router gets application port. Stream id
used to link request and response. If application process terminates
unexpectedly (e.g. before ready state), it is required to notify router about
application start failure. For this purpose stream id is stored in process
initialization parameters.
Stream id sequentially incremented and starts from 1 in case of router
resurrection. New router application start stream id may coincide with
stream id of currently running/terminating application processes. In such
cases router may receive REMOVE_PID message with same stream id as used in
application start request and mistakenly reports application start failure.
This commit tries to avoid such errors by resetting stream for processes in
ready state.
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