celery守护

Question

按照此处找到的说明，我将脚本从github复制到 /etc/init.d/celeryd中 ，然后使其可执行；

$ ll /etc/init.d/celeryd
-rwxr-xr-x 1 root root 9481 Feb 19 11:27 /etc/init.d/celeryd*

我按照说明创建了配置文件 / etc / default / celeryd ：

# Names of nodes to start
#   most will only start one node:
#CELERYD_NODES="worker1"
#   but you can also start multiple and configure settings
#   for each in CELERYD_OPTS (see `celery multi --help` for examples).
CELERYD_NODES="worker1 worker2 worker3"

# Absolute or relative path to the 'celery' command:
CELERY_BIN="/usr/local/bin/celery"
#CELERY_BIN="/virtualenvs/def/bin/celery"

# App instance to use
# comment out this line if you don't use an app
#CELERY_APP="proj"
# or fully qualified:
#CELERY_APP="proj.tasks:app"

# Where to chdir at start.
CELERYD_CHDIR="/path/to/folder/containing/tasks/"

# Extra command-line arguments to the worker
CELERYD_OPTS="--time-limit=3000 --concurrency=3 --config=celeryconfig"

# %N will be replaced with the first part of the nodename.
CELERYD_LOG_FILE="/var/log/celery/%N.log"
CELERYD_PID_FILE="/var/run/celery/%N.pid"

# Workers should run as an unprivileged user.
#   You need to create this user manually (or you can choose
#   a user/group combination that already exists, e.g. nobody).
CELERYD_USER="celery"
CELERYD_GROUP="celery"

# If enabled pid and log directories will be created if missing,
# and owned by the userid/group configured.
CELERY_CREATE_DIRS=1

注意 ：我在CELERYD_OPTS中添加了 --config = celeryconfig 部分。

我创建了一个新的用户 芹菜 与

sudo useradd -N -M --system -s /bin/false celery

然后创建集体 芹菜 并向其中添加用户：

$ id celery
uid=999(celery) gid=1005(celery) groups=1005(celery)

我将chown celery：celery用于文件夹：

/ var / run / celery /

/ var / log / celery /

当我尝试启动服务时，没有任何错误提示：

$ sudo service celeryd start
celery init v10.0.
Using config script: /etc/default/celeryd

但是状态使我“找不到pid”：

$ sudo service celeryd status
celery init v10.0.
Using config script: /etc/default/celeryd
celeryd is stopped: no pids were found

实际上，ps -ef没有给出结果，也没有创建PID文件或日志文件：

$ ll /var/run/celery
total 0
drwxr-sr-x  2 celery celery  40 Feb 19 14:13 ./
drwxr-xr-x 16 root   root   620 Feb 19 12:35 ../

$ ll /var/log/celery
total 8
drwxr-sr-x  2 celery celery 4096 Feb 19 14:13 ./
drwxr-xr-x 13 root   root   4096 Feb 19 11:37 ../

附加信息：

$ pip freeze | grep celery
celery==3.1.9

我想念什么？关于celeryd为什么不开始，我应该在哪里寻找更多线索？

Answer 1

我重复了您的步骤，并导致了相同的问题。问题是芹菜使用者没有外壳。

sudo useradd -N -M --system -s /bin/false celery

进行更改-s /bin/false以-s /bin/bash解决此问题。原因是celeryd初始化脚本使用celery用户的shell执行celery命令。如果没有外壳，则以下su命令将以静默方式退出。

_chuid () {
    su "$CELERYD_USER" -c "$CELERYD_MULTI $*"
}