On 03/02/2012 11:27 PM, Deepak C Shetty wrote:
Hi,
In my simple experiment, i connected to a SHAREDFS storage server and then created a data domain But the createStorageDomain failed with code 351, which just says "Error creating a storage domain".


How to find out what the real reason behind the failure.

Surprisingly, the domain dir structure does get created, so looks like it worked, but still it gives
failure as the return result, why ?

>> Sample code...

#!/usr/bin/python
# GPLv2+

import sys
import uuid
import time

sys.path.append('/usr/share/vdsm')

import vdscli
from storage.sd import SHAREDFS_DOMAIN, DATA_DOMAIN, ISO_DOMAIN
from storage.volume import COW_FORMAT, SPARSE_VOL, LEAF_VOL, BLANK_UUID

spUUID = str(uuid.uuid4())
sdUUID = str(uuid.uuid4())
imgUUID = str(uuid.uuid4())
volUUID = str(uuid.uuid4())

print "spUUID = %s"%spUUID
print "sdUUID = %s"%sdUUID
print "imgUUID = %s"%imgUUID
print "volUUID = %s"%volUUID

gluster_conn = "llm65.in.ibm.com:myvol"

s = vdscli.connect()

masterVersion = 1
hostID = 1

def vdsOK(d):
    print d
    if d['status']['code']:
    raise Exception(str(d))
    return d

def waitTask(s, taskid):
while vdsOK(s.getTaskStatus(taskid))['taskStatus']['taskState'] != 'finished':
        time.sleep(3)
    vdsOK(s.clearTask(taskid))

vdsOK(s.connectStorageServer(SHAREDFS_DOMAIN, "my gluster mount", [dict(id=1, spec=gluster_conn, vfs_type="glusterfs", mnt_options="")]))

vdsOK(s.createStorageDomain(SHAREDFS_DOMAIN, sdUUID, "my gluster domain", gluster_conn, DATA_DOMAIN, 0))

>> Output...

./dpk-sharedfs-vm.py
spUUID = 852110d5-c3d2-456e-ae75-b72e929e9bae
sdUUID = 1c15bc91-f62b-43c8-b68a-fd2bd3ed18fe
imgUUID = c29100e7-19cd-4a27-adc6-4c35cc5e690c
volUUID = 1d074f24-8bf0-4b68-8a35-40c3f2c33723
{'status': {'message': 'OK', 'code': 0}, 'statuslist': [{'status': 0, 'id': 1}]} {'status': {'message': "Error creating a storage domain: ('storageType=6, sdUUID=1c15bc91-f62b-43c8-b68a-fd2bd3ed18fe, domainName=my gluster domain, domClass=1, typeSpecificArg=llm65.in.ibm.com:myvol domVersion=0',)", 'code': 351}}
Traceback (most recent call last):
  File "./dpk-sharedfs-vm.py", line 74, in <module>
vdsOK(s.createStorageDomain(SHAREDFS_DOMAIN, sdUUID, "my gluster domain", gluster_conn, DATA_DOMAIN, 0))
  File "./dpk-sharedfs-vm.py", line 62, in vdsOK
    raise Exception(str(d))
Exception: {'status': {'message': "Error creating a storage domain: ('storageType=6, sdUUID=1c15bc91-f62b-43c8-b68a-fd2bd3ed18fe, domainName=my gluster domain, domClass=1, typeSpecificArg=llm65.in.ibm.com:myvol domVersion=0',)", 'code': 351}}

>> But it did create the dir structure...

]# find /rhev/data-center/mnt/llm65.in.ibm.com\:myvol/
/rhev/data-center/mnt/llm65.in.ibm.com:myvol/
/rhev/data-center/mnt/llm65.in.ibm.com:myvol/1c15bc91-f62b-43c8-b68a-fd2bd3ed18fe /rhev/data-center/mnt/llm65.in.ibm.com:myvol/1c15bc91-f62b-43c8-b68a-fd2bd3ed18fe/dom_md /rhev/data-center/mnt/llm65.in.ibm.com:myvol/1c15bc91-f62b-43c8-b68a-fd2bd3ed18fe/dom_md/metadata /rhev/data-center/mnt/llm65.in.ibm.com:myvol/1c15bc91-f62b-43c8-b68a-fd2bd3ed18fe/dom_md/leases /rhev/data-center/mnt/llm65.in.ibm.com:myvol/1c15bc91-f62b-43c8-b68a-fd2bd3ed18fe/dom_md/outbox /rhev/data-center/mnt/llm65.in.ibm.com:myvol/1c15bc91-f62b-43c8-b68a-fd2bd3ed18fe/dom_md/inbox /rhev/data-center/mnt/llm65.in.ibm.com:myvol/1c15bc91-f62b-43c8-b68a-fd2bd3ed18fe/dom_md/ids /rhev/data-center/mnt/llm65.in.ibm.com:myvol/1c15bc91-f62b-43c8-b68a-fd2bd3ed18fe/images

# mount | grep gluster
llm65.in.ibm.com:myvol on /rhev/data-center/mnt/llm65.in.ibm.com:myvol type fuse.glusterfs (rw,relatime,user_id=0,group_id=0,default_permissions,allow_other,max_read=131072)

Attaching the vdsm.log....

Thread-46::INFO::2012-03-03 04:49:16,092::nfsSD::64::Storage.StorageDomain::(create) sdUUID=1c15bc91-f62b-43c8-b68a-fd2bd3ed18fe domainName=my gluster domain remotePath=llm65.in.ibm.com:myvol domClass=1 Thread-46::DEBUG::2012-03-03 04:49:16,111::persistentDict::175::Storage.PersistentDict::(__init__) Created a persistant dict with FileMetadataRW backend Thread-46::DEBUG::2012-03-03 04:49:16,113::persistentDict::216::Storage.PersistentDict::(refresh) read lines (FileMetadataRW)=[] Thread-46::WARNING::2012-03-03 04:49:16,113::persistentDict::238::Storage.PersistentDict::(refresh) data has no embedded checksum - trust it as it is Thread-46::DEBUG::2012-03-03 04:49:16,113::persistentDict::152::Storage.PersistentDict::(transaction) Starting transaction Thread-46::DEBUG::2012-03-03 04:49:16,114::persistentDict::158::Storage.PersistentDict::(transaction) Flushing changes Thread-46::DEBUG::2012-03-03 04:49:16,114::persistentDict::277::Storage.PersistentDict::(flush) about to write lines (FileMetadataRW)=['CLASS=Data', 'DESCRIPTION=my gluster domain', 'IOOPTIMEOUTSEC=1', 'LEASERETRIES=3', 'LEASETIMESEC=5', 'LOCKPOLICY=', 'LOCKRENEWALINTERVALSEC=5', 'POOL_UUID=', 'REMOTE_PATH=llm65.in.ibm.com:myvol', 'ROLE=Regular', 'SDUUID=1c15bc91-f62b-43c8-b68a-fd2bd3ed18fe', 'TYPE=SHAREDFS', 'VERSION=0', '_SHA_CKSUM=c8ba67889d4b62ccd9fd368c584501404e8ee84e'] Thread-46::DEBUG::2012-03-03 04:49:16,118::persistentDict::160::Storage.PersistentDict::(transaction) Finished transaction Thread-46::DEBUG::2012-03-03 04:49:16,120::fileSD::98::Storage.StorageDomain::(__init__) Reading domain in path /rhev/data-center/mnt/llm65.in.ibm.com:myvol/1c15bc91-f62b-43c8-b68a-fd2bd3ed18fe Thread-46::DEBUG::2012-03-03 04:49:16,120::persistentDict::175::Storage.PersistentDict::(__init__) Created a persistant dict with FileMetadataRW backend Thread-46::ERROR::2012-03-03 04:49:16,121::task::855::TaskManager.Task::(_setError) Task=`9d108fc4-5fd4-4c88-8f4a-f44309ea0ce0`::Unexpected error
Traceback (most recent call last):
  File "/usr/share/vdsm/storage/task.py", line 863, in _run
    return fn(*args, **kargs)
  File "/usr/share/vdsm/logUtils.py", line 38, in wrapper
    res = f(*args, **kwargs)
  File "/usr/share/vdsm/storage/hsm.py", line 1922, in createStorageDomain
    typeSpecificArg, storageType, domVersion)
  File "/usr/share/vdsm/storage/nfsSD.py", line 87, in create
    fsd = cls(os.path.join(mntPoint, sdUUID))
  File "/usr/share/vdsm/storage/fileSD.py", line 104, in __init__
    sdUUID = metadata[sd.DMDK_SDUUID]
  File "/usr/share/vdsm/storage/persistentDict.py", line 75, in __getitem__
    return dec(self._dict[key])
File "/usr/share/vdsm/storage/persistentDict.py", line 183, in __getitem__
    with self._accessWrapper():
  File "/usr/lib64/python2.7/contextlib.py", line 17, in __enter__
    return self.gen.next()
File "/usr/share/vdsm/storage/persistentDict.py", line 137, in _accessWrapper
    self.refresh()
  File "/usr/share/vdsm/storage/persistentDict.py", line 214, in refresh
    lines = self._metaRW.readlines()
  File "/usr/share/vdsm/storage/fileSD.py", line 71, in readlines
    return misc.stripNewLines(self._oop.directReadLines(self._metafile))
  File "/usr/share/vdsm/storage/processPool.py", line 53, in wrapper
    return self.runExternally(func, *args, **kwds)
  File "/usr/share/vdsm/storage/processPool.py", line 64, in runExternally
    return self._procPool.runExternally(*args, **kwargs)
  File "/usr/share/vdsm/storage/processPool.py", line 154, in runExternally
    raise err

OSError: [Errno 22] Invalid argument: '/rhev/data-center/mnt/llm65.in.ibm.com:myvol/1c15bc91-f62b-43c8-b68a-fd2bd3ed18fe/dom_md/metadata' Thread-46::DEBUG::2012-03-03 04:49:16,129::task::874::TaskManager.Task::(_run) Task=`9d108fc4-5fd4-4c88-8f4a-f44309ea0ce0`::Task._run: 9d108fc4-5fd4-4c88-8f4a-f44309ea0ce0 (6, '1c15bc91-f62b-43c8-b68a-fd2bd3ed18fe', 'my gluster domain', 'llm65.in.ibm.com:myvol', 1, 0) {} failed - stopping task Thread-46::DEBUG::2012-03-03 04:49:16,130::task::1201::TaskManager.Task::(stop) Task=`9d108fc4-5fd4-4c88-8f4a-f44309ea0ce0`::stopping in state preparing (force False) Thread-46::DEBUG::2012-03-03 04:49:16,130::task::980::TaskManager.Task::(_decref) Task=`9d108fc4-5fd4-4c88-8f4a-f44309ea0ce0`::ref 1 aborting True Thread-46::INFO::2012-03-03 04:49:16,130::task::1159::TaskManager.Task::(prepare) Task=`9d108fc4-5fd4-4c88-8f4a-f44309ea0ce0`::aborting: Task is aborted: "[Errno 22] Invalid argument: '/rhev/data-center/mnt/llm65.in.ibm.com:myvol/1c15bc91-f62b-43c8-b68a-fd2bd3ed18fe/dom_md/metadata'" - code 100 Thread-46::DEBUG::2012-03-03 04:49:16,130::task::1164::TaskManager.Task::(prepare) Task=`9d108fc4-5fd4-4c88-8f4a-f44309ea0ce0`::Prepare: aborted: [Errno 22] Invalid argument: '/rhev/data-center/mnt/llm65.in.ibm.com:myvol/1c15bc91-f62b-43c8-b68a-fd2bd3ed18fe/dom_md/metadata' Thread-46::DEBUG::2012-03-03 04:49:16,130::task::980::TaskManager.Task::(_decref) Task=`9d108fc4-5fd4-4c88-8f4a-f44309ea0ce0`::ref 0 aborting True Thread-46::DEBUG::2012-03-03 04:49:16,131::task::915::TaskManager.Task::(_doAbort) Task=`9d108fc4-5fd4-4c88-8f4a-f44309ea0ce0`::Task._doAbort: force False Thread-46::DEBUG::2012-03-03 04:49:16,131::resourceManager::841::ResourceManager.Owner::(cancelAll) Owner.cancelAll requests {} Thread-46::DEBUG::2012-03-03 04:49:16,131::task::588::TaskManager.Task::(_updateState) Task=`9d108fc4-5fd4-4c88-8f4a-f44309ea0ce0`::moving from state preparing -> state aborting Thread-46::DEBUG::2012-03-03 04:49:16,131::task::537::TaskManager.Task::(__state_aborting) Task=`9d108fc4-5fd4-4c88-8f4a-f44309ea0ce0`::_aborting: recover policy none Thread-46::DEBUG::2012-03-03 04:49:16,132::task::588::TaskManager.Task::(_updateState) Task=`9d108fc4-5fd4-4c88-8f4a-f44309ea0ce0`::moving from state aborting -> state failed Thread-46::DEBUG::2012-03-03 04:49:16,132::resourceManager::806::ResourceManager.Owner::(releaseAll) Owner.releaseAll requests {} resources {} Thread-46::DEBUG::2012-03-03 04:49:16,132::resourceManager::841::ResourceManager.Owner::(cancelAll) Owner.cancelAll requests {} Thread-46::ERROR::2012-03-03 04:49:16,132::dispatcher::93::Storage.Dispatcher.Protect::(run) [Errno 22] Invalid argument: '/rhev/data-center/mnt/llm65.in.ibm.com:myvol/1c15bc91-f62b-43c8-b68a-fd2bd3ed18fe/dom_md/metadata'
Traceback (most recent call last):
  File "/usr/share/vdsm/storage/dispatcher.py", line 85, in run
    result = ctask.prepare(self.func, *args, **kwargs)
  File "/usr/share/vdsm/storage/task.py", line 1166, in prepare
    raise self.error
OSError: [Errno 22] Invalid argument: '/rhev/data-center/mnt/llm65.in.ibm.com:myvol/1c15bc91-f62b-43c8-b68a-fd2bd3ed18fe/dom_md/metadata'

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