Merge pull request #46 from TimothyAsir/master

Added get_rrd_memory_details.py file to get memory details from rrd.

1 files changed, 59 insertions, 0 deletions

diff --git a/src/com.gluster.storage.management.server.scripts/src/get_rrd_memory_details.py b/src/com.gluster.storage.management.server.scripts/src/get_rrd_memory_details.py
new file mode 100755
index 00000000..4d33381b
--- /dev/null
+++ b/src/com.gluster.storage.management.server.scripts/src/get_rrd_memory_details.py
@@ -0,0 +1,59 @@
+#!/usr/bin/python
+#  Copyright (C) 2010 Gluster, Inc. <http://www.gluster.com>
+#  This file is part of Gluster Storage Platform.
+#
+#  Gluster Storage Platform is free software; you can redistribute it
+#  and/or modify it under the terms of the GNU General Public License
+#  as published by the Free Software Foundation; either version 3 of
+#  the License, or (at your option) any later version.
+#
+#  Gluster Storage Platform is distributed in the hope that it will be
+#  useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+#  of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program.  If not, see
+#  <http://www.gnu.org/licenses/>.
+import os
+import sys
+import syslog
+from XmlHandler import ResponseXml
+import Utils
+import Common
+
+def getMemData(period):
+    memRrdFile = "/var/lib/rrd/mem.rrd"
+    rs = ResponseXml()
+    command = ["rrdtool", "xport", "--start", "-1%s" % period,
+               "DEF:used=%s:memused:AVERAGE" % memRrdFile,
+               "DEF:free=%s:memfree:AVERAGE" % memRrdFile,
+               "DEF:cache=%s:memcache:AVERAGE" % memRrdFile,
+               "CDEF:total=used,free,+",
+               "XPORT:used:'used'",
+               "XPORT:free:'free'",
+               "XPORT:cache:'cache'",
+               "XPORT:total:'total'"]
+
+    rv = Utils.runCommandFG(command, stdout=True, root=True)
+    message = Common.stripEmptyLines(rv["Stdout"])
+    if rv["Stderr"]:
+        error = Common.stripEmptyLines(rv["Stderr"])
+        message += "Error: [%s]" % (error)
+        Common.log(syslog.LOG_ERR, "failed to create RRD file for memory usages %s" % file)
+        rs.appendTagRoute("status.code", rv["Status"])
+        rs.appendTagRoute("status.message", message)
+        return rs.toxml()
+    return rv["Stdout"]
+
+def main():
+    if len(sys.argv) != 2:
+        print >> sys.stderr, "usage: %s <period>" % sys.argv[0]
+        sys.exit(-1)
+
+    period = sys.argv[1]
+    print getMemData(period)
+    sys.exit(0)
+
+if __name__ == "__main__":
+    main()