Improvements to daemon mode operations
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Key: QPID-1114
URL: https://issues.apache.org/jira/browse/QPID-1114
Project: Qpid
Issue Type: Improvement
Components: C++ Broker
Affects Versions: M3
Reporter: Ted Ross
Assignee: Ted Ross
Priority: Minor
Fix For: M3
This update improves daemon-mode operation of the C++ broker.
When run as a daemon (--daemon), the broker currently creates a PID file
specific to the port the broker is listening on. This allows multiple daemons
to run simultaneously on the same system. The PID file is stored in "/var/run"
if the broker is running as root, otherwise, it is stored in "/tmp".
The problem with this is that since it is recommended that the broker not run
as root for security reasons, installed/deployed brokers write their PID files
to /tmp. This is not the right place for such a file and may run afoul of the
security policy on the system it is installed on. It also means that root
users can't use the --quit option to stop daemons that were started by non-root
users.
This update does the following:
1) Removes the root/not-root distinction and always defaults to "/tmp". This
is useful for developers who run the broker from SVN and not as a service.
2) Provides a new option "--pid-dir" that allows the configuration (command
line, file, or env-variables) to control the directory for PID file storage.
3) Adds a line to the default configuration file (/etc/qpidd.conf) that sets
the pid-dir to "/var/run/qpidd". This is useful for real deployment.
4) Adds commands in the install spec-file to create /var/run/qpidd with read
and write access for user "qpidd"
Note that there is also a bug-fix in the qpidd startup script. Instead of
using the "daemon" command to spawn the service (which retrieves the PID of the
qpidd parent process, not the child), the runuser command is used instead.
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