if (not active):
print NAMESPACE+" : namespace inactive"
# Get the active disk list
A_DISKS = cache_disk_lib.get_active_disks()
logger.info('------------------------------------------------------------')
logger.info('Starting background listing...')
logger.info("Starting mgmt build list with (%s, %s, %s)", NAMESPACE, NS_UID, PATTERN)
#NICE_VAL_0=os.nice(-10)
#logger.info("nice val is %d", NICE_VAL_0)
# If lock file exists then it means the task is already in progress
# Hence, nothing to do
if mgmt_lib.is_lock_valid(LOCK_FILE):
print "Object list generation is already in progress. Please retry after few minutes"
logger.info('Bailing on retry since task is running.')
sys.exit()
else:
# Check if the list file exists
if os.path.exists(OBJECT_LIST_FILE):
# If the number of objects in the old list is above 10K
# we would like to create a 2 min pause between subsequent
# requests
old_list_count=len(OBJECT_LIST_FILE)
if old_list_count > 10000 :
# Now find the time since that last update
# to the object list file
file_change_time=os.path.getmtime(OBJECT_LIST_FILE)
curr_time=time.time()
print "Object queued for deletion"
print "Please run the object list command for the URI"
else:
print "Object not found"
sys.exit()
# Convert the PATTERN that is grep friendly
# first made . as literal and then made the normal grep friendly pattern
#[!!fix for bug 1737]
#Setup the signal handler here,
# at paths which take object listing
signal.signal(signal.SIGCHLD, handleSIGCHLD)
if mgmt_lib.is_lock_valid(SLOW_DEL_LOCK_FILE):
print NAMESPACE + " : Object deletion is already in progress.Please try after sometime."
sys.exit()
if mgmt_lib.is_lock_valid(OBJ_BUILD_LOCK_FILE):
print NAMESPACE + " : Object list generation is already in progress.Please try after sometime."
sys.exit()
# Check if a delete is already in progress
#Moved this check here as files are created only for a pattern or delete all
if mgmt_lib.is_lock_valid(LOCK_FILE):
print NAMESPACE+" : Deletion of objects for this namespace already"+ \
" in progress"
print "Issue this command only after the earlier one has completed"
print "Check log for status of deletion"
sys.exit()
LOG_DIR = "/var/log/nkn/cache"
LOCK_FILE = LOG_DIR + "/ns_objects_" + NAMESPACE + ".slow.del.lck"
if (NS_DOMAIN == "all"):
NS_DOMAIN = "any"
# Sanity check
if (not os.path.isfile(LIST_FILE)):
syslog.syslog(syslog.LOG_NOTICE, "file doesnot exists : " + LIST_FILE)
syslog.syslog(
syslog.LOG_NOTICE,
"[Cache Deletion] Error: List file missing for Domain : " + NS_DOMAIN)
sys.exit()
if mgmt_lib.is_lock_valid(LOCK_FILE):
print "Object deletion is already in progress. Please retry after few minutes"
sys.exit()
else:
mgmt_lib.acquire_lock(LOCK_FILE)
if not NAMESPACE == "":
syslog.syslog(syslog.LOG_NOTICE,
"[Cache Deletion] Starting for Namespace: " + NAMESPACE)
syslog.syslog(syslog.LOG_NOTICE,
"[Cache Deletion] Starting for Domain : " + NS_DOMAIN)
#Queue the delete request
#arglist = "-s "+NS_DOMAIN+" -N del_uri_file:"+LIST_FILE+" -r /tmp/ignore -q /tmp/FMGR.queue"
#fq_arglist = "/opt/nkn/bin/nknfqueue "+_arglist
print "Please run the object list command for the URI"
else:
print "Object not found"
sys.exit()
# Convert the PATTERN that is grep friendly
# first made . as literal and then made the normal grep friendly pattern
#[!!fix for bug 1737]
#Setup the signal handler here,
# at paths which take object listing
signal.signal(signal.SIGCHLD, handleSIGCHLD)
if mgmt_lib.is_lock_valid(SLOW_DEL_LOCK_FILE):
print NAMESPACE+" : Object deletion is already in progress.Please try after sometime."
sys.exit()
if mgmt_lib.is_lock_valid(OBJ_BUILD_LOCK_FILE):
print NAMESPACE+" : Object list generation is already in progress.Please try after sometime."
sys.exit()
# Check if a delete is already in progress
#Moved this check here as files are created only for a pattern or delete all
if mgmt_lib.is_lock_valid(LOCK_FILE):
print NAMESPACE+" : Deletion of objects for this namespace already"+ \
" in progress"
print "Issue this command only after the earlier one has completed"
OBJ_PATTERN = OBJ_PATTERN.replace("^", "\^")
OBJ_PATTERN = OBJ_PATTERN.replace("?", "\?")
OBJ_PATTERN = OBJ_PATTERN.replace(".", "\.")
# Get the active disk list
A_DISKS = cache_disk_lib.get_active_disks()
#Get the object path alone
OBJ_DIR_PATH = os.path.dirname(OBJ_PATTERN)
#Canonicalize the path
OBJ_DIR = os.path.abspath(OBJ_DIR_PATH)
#lock start
#Lock for single object display. This set of commands call the ramcache action directly, display
#the output and delete the temp files.Don't allow two commands to call this set of commands immediately.
#If lock is present, display the error message for the command trying to acquire the lock.
if mgmt_lib.is_lock_valid(SINGLE_LOCK_FILE):
print "The task is already in progress. Please retry after few minutes"
sys.exit()
else:
mgmt_lib.acquire_lock(SINGLE_LOCK_FILE)
#BUG FIX:10727.
#If file for single object exists remove this and then open a new one.
#This is to handle the case where in the previous listing had script error due to some invalid exp
#The cleanup is handled here to ensure only the object is listed only once.
#Issue: The single object file was not getting cleanedup and the new query was appending the new list to old list
#resulting in multiple entry display.
if os.path.exists(GREPED_SINGLE_OBJECT_LIST_FILE):
os.remove(GREPED_SINGLE_OBJECT_LIST_FILE)
if os.path.exists(SINGLE_OBJECT_LIST_FILE):
os.remove(SINGLE_OBJECT_LIST_FILE)
OBJ_PATTERN = OBJ_PATTERN.replace("^", "\^")
OBJ_PATTERN = OBJ_PATTERN.replace("?", "\?")
OBJ_PATTERN = OBJ_PATTERN.replace(".", "\.")
# Get the active disk list
A_DISKS = cache_disk_lib.get_active_disks()
#Get the object path alone
OBJ_DIR_PATH = os.path.dirname(OBJ_PATTERN)
#Canonicalize the path
OBJ_DIR = os.path.abspath(OBJ_DIR_PATH)
#lock start
#Lock for single object display. This set of commands call the ramcache action directly, display
#the output and delete the temp files.Don't allow two commands to call this set of commands immediately.
#If lock is present, display the error message for the command trying to acquire the lock.
if mgmt_lib.is_lock_valid(SINGLE_LOCK_FILE):
print "The task is already in progress. Please retry after few minutes"
sys.exit()
else:
mgmt_lib.acquire_lock(SINGLE_LOCK_FILE)
#BUG FIX:10727.
#If file for single object exists remove this and then open a new one.
#This is to handle the case where in the previous listing had script error due to some invalid exp
#The cleanup is handled here to ensure only the object is listed only once.
#Issue: The single object file was not getting cleanedup and the new query was appending the new list to old list
#resulting in multiple entry display.
if os.path.exists(GREPED_SINGLE_OBJECT_LIST_FILE):
os.remove(GREPED_SINGLE_OBJECT_LIST_FILE)
if os.path.exists(SINGLE_OBJECT_LIST_FILE):
os.remove(SINGLE_OBJECT_LIST_FILE)
