class LavinMQ::DataDirLock

• LavinMQ::DataDirLock
• Reference
• Object

Overview

Make sure that only one instance is using the data directory Can work as a poor mans cluster where the master nodes acquires a file lock on a shared file system like NFS

Defined in:

lavinmq/data_dir_lock.cr

Constant Summary

Log = LavinMQ::Log.for("data_dir_lock")

Constructors

• .new(data_dir)

Instance Method Summary

• #acquire

  See man 2 flock

• #poll

  Read from the lock file to detect lost lock on networked filesystems (NFS/SMB) See "Lost locks" in man 2 fcntl

• #release

Constructor Detail

Instance Method Detail