diff options
| -rw-r--r-- | extras/ganesha/scripts/Makefile.am | 6 | ||||
| -rwxr-xr-x | extras/ganesha/scripts/generate-epoch.py | 48 |
2 files changed, 52 insertions, 2 deletions
diff --git a/extras/ganesha/scripts/Makefile.am b/extras/ganesha/scripts/Makefile.am index e71e2f6456b..224ed26e75b 100644 --- a/extras/ganesha/scripts/Makefile.am +++ b/extras/ganesha/scripts/Makefile.am @@ -1,4 +1,6 @@ -EXTRA_DIST= ganesha-ha.sh dbus-send.sh create-export-ganesha.sh +EXTRA_DIST= ganesha-ha.sh dbus-send.sh create-export-ganesha.sh \ + generate-epoch.py scriptsdir = $(libexecdir)/ganesha -scripts_SCRIPTS = create-export-ganesha.sh dbus-send.sh ganesha-ha.sh +scripts_SCRIPTS = create-export-ganesha.sh dbus-send.sh ganesha-ha.sh \ + generate-epoch.py diff --git a/extras/ganesha/scripts/generate-epoch.py b/extras/ganesha/scripts/generate-epoch.py new file mode 100755 index 00000000000..5db5e56b480 --- /dev/null +++ b/extras/ganesha/scripts/generate-epoch.py @@ -0,0 +1,48 @@ +#!/usr/bin/python +# +# Copyright (c) 2016 Red Hat, Inc. <http://www.redhat.com> +# This file is part of GlusterFS. +# +# This file is licensed to you under your choice of the GNU Lesser +# General Public License, version 3 or any later version (LGPLv3 or +# later), or the GNU General Public License, version 2 (GPLv2), in all +# cases as published by the Free Software Foundation. +# +# Generates unique epoch value on each gluster node to be used by +# nfs-ganesha service on that node. +# +# Configure 'EPOCH_EXEC' option to this script path in +# '/etc/sysconfig/ganesha' file used by nfs-ganesha service. +# +# Construct epoch as follows - +# first 32-bit contains the now() time +# rest 32-bit value contains the local glusterd node uuid + +import time +import binascii + +# Calculate the now() time into a 64-bit integer value +def epoch_now(): + epoch_time = int(time.mktime(time.localtime())) << 32 + return epoch_time + +# Read glusterd UUID and extract first 32-bit of it +def epoch_uuid(): + file_name = '/var/lib/glusterd/glusterd.info' + + for line in open(file_name): + if "UUID" in line: + glusterd_uuid = line.split('=')[1].strip() + + uuid_bin = binascii.unhexlify(glusterd_uuid.replace("-","")) + + epoch_uuid = int(uuid_bin.encode('hex'), 32) & 0xFFFF0000 + return epoch_uuid + +# Construct epoch as follows - +# first 32-bit contains the now() time +# rest 32-bit value contains the local glusterd node uuid +epoch = (epoch_now() | epoch_uuid()) +print str(epoch) + +exit(0) |