Munin contributed plugins

Révision 16d38264

[btrfs_device_usage] fix division by zero when btrfs pool is unhealthy

During certain situations, a device in the btrfs pool can show a total
capacity of 0 bytes. This is aspecially true when replacing or removing a
failed disk.

This fix stops the plugin from crashing in that situation but just report
the devices percentage as unknown (U). That way other devices in the pool
stil can be monitored.

    for this_device in devices:

        this_dev_info = fs.dev_info(this_device.devid)

        usage = 100.0 * this_dev_info.bytes_used / this_dev_info.total_bytes

        print("btrfs_percent_" + fsid + "_" + str(this_device.devid) +

              ".value " + str(round(usage, 2)))

        if this_dev_info.total_bytes > 0:

            usage = 100.0 * this_dev_info.bytes_used / this_dev_info.total_bytes

            print("btrfs_percent_" + fsid + "_" + str(this_device.devid) +

                  ".value " + str(round(usage, 2)))

        else:

            print("btrfs_percent_" + fsid + "_" + str(this_device.devid) +

                  ".value U")

    print("")

Formats disponibles : Unified diff