装入数据卷后，Riak容器无法启动 [英] Riak container does not start when its data volume is mounted
问题描述
以下命令可以正常运行，并且riak服务将按预期启动：
The following command works perfectly and the riak service starts as expected:
docker run --name = riak -d -p 8087 ：8087 -p 8098：8098 -v $ {pwd} / schemas：/ etc / riak / schema basho / riak-ts
docker run --name=riak -d -p 8087:8087 -p 8098:8098 -v $(pwd)/schemas:/etc/riak/schema basho/riak-ts
本地 schemas 目录已成功安装，并且riak读取了其中的 sql 文件。但是，如果我尝试挂载riak的 data 或 log 目录，则riak服务不会启动，并且15秒后会超时：
The local schemas directory is mounted successfully and the sql file in it is read by riak. However if I try to mount the riak's data or log directories, the riak service does not start and timeouts after 15 seconds:
docker run --name = riak -d -p 8087：8087 -p 8098：8098 -v $ {pwd）/ logs ：/ var / log / riak -v $ {pwd）/ schemas：/ etc / riak / schema basho / riak-ts
docker run --name=riak -d -p 8087:8087 -p 8098:8098 -v $(pwd)/logs:/var/log/riak -v $(pwd)/schemas:/etc/riak/schema basho/riak-ts
docker log riak 的输出：
+ / usr / sbin / riak start < br>
riak在15秒内无法启动，
请参见'riak console'的输出以获取更多信息。
如果您想让
等待更长的时间，将环境变量
WAIT_FOR_ERLANG设置为
等待的秒数。
+ /usr/sbin/riak start
riak failed to start within 15 seconds,
see the output of 'riak console' for more information.
If you want to wait longer, set the environment variable
WAIT_FOR_ERLANG to the number of seconds to wait.
为什么riak在日志或数据目录装入本地目录时无法启动？
Why does riak not start when it's logs or data directories are mounted to local directories?
推荐答案
此问题与挂载的 log 文件夹的目录所有者有关。文件夹 $ GROUP 和 $ USER 预期为 riak 如下所示：
This issue is with the directory owner of mounted log folder. The folder $GROUP and $USER are expected to be riak as follow:
root@20e489124b9a:/var/log# ls -l
drwxr-xr-x 2 riak riak 4096 Jul 19 10:00 riak
但是随着交易量的增加，您将得到：
but with volumes you are getting:
root@3546d261a465:/var/log# ls -l
drwxr-xr-x 2 root root 4096 Jul 19 09:58 riak
一种解决方法是将目录所有权设置为 riak 用户和主机上的组，然后再启动容器。我在docker映像中查看了UID / GID（ / etc / passwd ），它们是：
One way to solve this is to have the directory ownership as riak user and group on host before starting the container. I looked the UID/GID (/etc/passwd) in docker image and they were:
riak:x:102:105:Riak user,,,:/var/lib/riak:/bin/bash
现在在启动容器之前先更改主机目录的所有权：
now change the ownership on host directories before starting the container as:
sudo chown 102:105 logs/
sudo chown 102:105 data/
这应该可以解决。至少现在（是。详细信息此处。
This should solve it. At least for now. Details here.
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