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authorBritney Fransen <brfransen@gmail.com>2015-09-09 21:06:40 (GMT)
committerBritney Fransen <brfransen@gmail.com>2015-09-09 21:06:40 (GMT)
commit8d24bd8ad39f4a4cb0a84628016992414ab2c1ae (patch)
tree020ab29f8264557bf27abba40e164a4a44fa980a
parent83ccffcdbdebaf747577922ea38ac1cfb0e70fc8 (diff)
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LinHES-system: balance_storage.py: script to balance mythtv storage group directories
-rwxr-xr-xabs/core/LinHES-system/PKGBUILD5
-rwxr-xr-xabs/core/LinHES-system/balance_storage.py137
2 files changed, 140 insertions, 2 deletions
diff --git a/abs/core/LinHES-system/PKGBUILD b/abs/core/LinHES-system/PKGBUILD
index 6b8670c..67f0c19 100755
--- a/abs/core/LinHES-system/PKGBUILD
+++ b/abs/core/LinHES-system/PKGBUILD
@@ -1,6 +1,6 @@
pkgname=LinHES-system
pkgver=8.3
-pkgrel=13
+pkgrel=14
arch=('i686' 'x86_64')
install=system.install
pkgdesc="Everything that makes LinHES an automated system"
@@ -17,7 +17,7 @@ binfiles="LinHES-start optimize_mythdb.py myth_mtc.py
install_supplemental_service.sh get_airplay_key importfiles.sh
lh_system_backup lh_system_backup_job lh_system_restore_job
lh_system_host_update lh_system_all_host_update
- add_storage.py diskspace.sh cacheclean lh_backend_control.sh
+ add_storage.py balance_storage.py diskspace.sh cacheclean lh_backend_control.sh
create_media_dirs.sh msg_client.py msg_daemon.py mythvidexport.py
gen_is_xml.py gen_lib_xml.py gen_light_include.py gen_game_xml.py
misc_recent_recordings.pl misc_status_config.py misc_status_info.sh
@@ -98,6 +98,7 @@ md5sums=('76842f8cff548d2c1289e0992a8b84dd'
'74e17d6f7453c52d56fecaed5c3f6ad5'
'47e093e8cfe4b5b96602358e1f540832'
'63bbc62240f46a9997eaae4a84b09b76'
+ '2aa1a285161c8bf3e2ab16ca9e511b00'
'2c005d95312018bef80092136f80f254'
'c8db6a83ecc089ea37ab7fcb0f7a01cf'
'ca63946920ba33de1f15abda83e74e40'
diff --git a/abs/core/LinHES-system/balance_storage.py b/abs/core/LinHES-system/balance_storage.py
new file mode 100755
index 0000000..a6995ca
--- /dev/null
+++ b/abs/core/LinHES-system/balance_storage.py
@@ -0,0 +1,137 @@
+#!/usr/bin/python2
+
+import argparse, glob, operator, os, random, shutil, subprocess, sys, signal
+shouldQuit = False
+
+def getFreeSpaceForDir(dir):
+ stats = os.statvfs(dir)
+ return (stats.f_bavail * stats.f_frsize)
+
+def getFreePercentForDir(dir):
+ stats = os.statvfs(dir)
+ total = (stats.f_blocks)
+ avail = (stats.f_bavail)
+ return (total - avail) / float(total)
+
+def getFileSize(fullPath):
+ return os.path.getsize(fullPath)
+
+def sizeof_fmt(num, suffix='B'):
+ for unit in ['','Ki','Mi','Gi','Ti','Pi','Ei','Zi']:
+ if abs(num) < 1024.0:
+ return "%3.1f %s%s" % (num, unit, suffix)
+ num /= 1024.0
+ return "%.1f %s%s" % (num, 'Yi', suffix)
+
+def signal_handler(signal, frame):
+ print "\nWill quit when file has been moved.\nMoving File..."
+ global shouldQuit
+ shouldQuit = True
+
+if __name__ == '__main__':
+ parser = argparse.ArgumentParser()
+ parser.add_argument('-c', '--checkonly', action='store_true', help="Check only, don't move any files.")
+ parser.add_argument('-p', '--percent', type=int, default=7, help="The percentage difference between the most full dir and least full dir that will stop balancing.")
+ cmdargs = parser.parse_args()
+
+ SGDIRS = []
+ SGgrp = "Default"
+
+ signal.signal(signal.SIGINT, signal_handler)
+
+ print "\nBalance MythTV Storage Group Directories\nPress Ctrl+C to quit"
+
+ # Get Storage Groups from MythDB
+ try:
+ from MythTV import MythDB
+ mythDB = MythDB()
+ records = mythDB.getStorageGroup()
+ except:
+ print "Couldn't connect to MythTV database."
+ sys.exit(1)
+
+ # Get Storage Group directories
+ for record in records:
+ if record.groupname == SGgrp:
+ dirname = record.dirname
+ SGDIRS.append(dirname)
+
+ # If there are less than 2 directories defined bail as we can't move anything
+ if len(SGDIRS) < 2:
+ print "There are less than 2 directories defined. Exiting."
+ sys.exit(0)
+
+ while not shouldQuit:
+ SGDIRSdata = []
+ print "\n------------------------------------------------"
+ print "'" + SGgrp + "' Storage Group Directories - Percent Used:"
+ # Get percent free and size free
+ for directory in SGDIRS:
+ # Check if SG path exists
+ if not os.path.exists(directory):
+ print " " + directory + " - Not Mounted"
+ continue
+ freePcent = getFreePercentForDir(directory)
+ freeSize = getFreeSpaceForDir(directory)
+ # Check if SG has any mpg or nuv files and if so add to SGDIRSdata
+ if len(glob.glob1(directory,"*.mpg")) or len(glob.glob1(directory,"*.nuv")):
+ SGDIRSdata.append([directory, freePcent, freeSize])
+ print " " + directory + " - " + str(freePcent * 100) + "%"
+
+ # Sort data on percent free
+ SGDIRSdata = sorted(SGDIRSdata, reverse=True, key=operator.itemgetter(1))
+ #print SGDIRSdata
+ mostFull = SGDIRSdata[0]
+ leastFull = SGDIRSdata[-1]
+
+ print "------------------------------------------------"
+ print "Most Used Storage Group Directory: "
+ print " " + str(mostFull[0]) + " - " + str(mostFull[1] * 100) + "%"
+ print "Least Used Storage Group Directory: "
+ print " " + str(leastFull[0]) + " - " + str(leastFull[1] * 100) + "%"
+
+ # Check if mostFull and leastFull are within the percent var of each other
+ if mostFull[1] - (float(cmdargs.percent) / 100) < leastFull[1]:
+ print "\nThe most used and least used storage group directories are\nwithin " + str(cmdargs.percent) + "% used of each other. No files will be moved."
+ sys.exit()
+
+ # Get random file from most used dir
+ fileToMove = random.choice([f for f in os.listdir(mostFull[0]) if f.endswith(".mpg") or f.endswith(".nuv")])
+ fileToMove = mostFull[0] + "/" + fileToMove
+
+ # Check that the file isn't too big for least used dir
+ fileSize = getFileSize(fileToMove)
+ if (fileSize > getFreeSpaceForDir(leastFull[0])):
+ # Too big to move
+ print fileToMove + " is too big to move to " + leastFull[0]
+ sys.exit()
+
+ print "------------------------------------------------"
+ print "Move File:"
+ print " " + fileToMove
+ print " Size: " + sizeof_fmt(os.path.getsize(fileToMove))
+ print "To:"
+ print " " + leastFull[0]
+ print " Available: " + sizeof_fmt(getFreeSpaceForDir(leastFull[0]))
+
+ # Move file
+ if cmdargs.checkonly:
+ print "------------------------------------------------"
+ print"Check Only option was used. No files were moved."
+ shouldQuit = True
+ else:
+ print "------------------------------------------------"
+ print "Checking System Status..."
+ if subprocess.call(["/usr/bin/python2", "/usr/LH/bin/idle.py", "-s"]):
+ print " System is busy. The file will not be moved."
+ sys.exit()
+ print "Moving File..."
+ shutil.move(fileToMove, leastFull[0])
+
+ # Remove png files
+ print "------------------------------------------------"
+ print "Removing png Files:"
+ pngFiles = glob.glob(fileToMove + "*.png")
+ for p in pngFiles:
+ os.remove(p)
+ print " " + p