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authorPranav <prprakas@redhat.com>2020-06-01 10:35:30 +0530
committerBala Konda Reddy M <bala12352@gmail.com>2020-06-02 09:11:49 +0000
commit2d56ff3360042072de4bd67b0bf950d1f3404d67 (patch)
treeee01263ae50f0ded183817ca7e683e49faaa0dca /glustolibs-gluster/glustolibs/gluster
parent3979be96355f1bc694056c036928df9b71117870 (diff)
[Lib] Add find_specific_hashed method
This method helps in cases of rename scenarios where the new filename has to be hashed to a specific subvol Change-Id: Ia36ea8e3d279ddf130f3a8a940dbe1fcb1910974 Signed-off-by: Pranav <prprakas@redhat.com>
Diffstat (limited to 'glustolibs-gluster/glustolibs/gluster')
-rw-r--r--glustolibs-gluster/glustolibs/gluster/dht_test_utils.py34
1 files changed, 34 insertions, 0 deletions
diff --git a/glustolibs-gluster/glustolibs/gluster/dht_test_utils.py b/glustolibs-gluster/glustolibs/gluster/dht_test_utils.py
index 55dcce5..eaf4fc9 100644
--- a/glustolibs-gluster/glustolibs/gluster/dht_test_utils.py
+++ b/glustolibs-gluster/glustolibs/gluster/dht_test_utils.py
@@ -342,6 +342,40 @@ def find_new_hashed(subvols, parent_path, oldname):
return None
+def find_specific_hashed(subvols, parent_path, subvol):
+ """ Finds filename that hashes to a specific subvol.
+
+ Args:
+ subvols(list): list of subvols
+ parent_path(str): parent path (relative to mount) of "oldname"
+ subvol(str): The subvol to which the new name has to be hashed
+
+ Returns:
+ (Class Object): For success returns an object of type NewHashed
+ holding information pertaining to new name.
+ None, otherwise
+ Note: The new hash will be searched under the same parent
+ """
+ # pylint: disable=protected-access
+ brickobject = create_brickobjectlist(subvols, parent_path)
+ if brickobject is None:
+ g.log.error("could not form brickobject list")
+ return None
+ count = -1
+ for item in range(1, 5000, 1):
+ newhash = calculate_hash(brickobject[0]._host, str(item))
+ for brickdir in brickobject:
+ count += 1
+ if subvol._fqpath == brickdir._fqpath:
+ ret = brickdir.hashrange_contains_hash(newhash)
+ if ret:
+ g.log.debug("oldhashed %s new %s count %s",
+ subvol, brickdir._host, str(count))
+ return NewHashed(item, brickdir, count)
+ count = -1
+ return None
+
+
class NewHashed(object):
'''
Helper Class to hold new hashed info