Add locking to PureISCSIDriver around creating Purity Host objects.

This will prevent us from getting conflicting credentials for
connection methods which will result in iSCSI attach operations to fail.

Change-Id: Ia206e7b5ff330c8fccb49ed23a31b120a5c04eb3
Closes-Bug: 1444224
(cherry picked from commit a712afe42833443878898bb42851376cd8615ff9)

diff --git a/cinder/volume/drivers/pure.py b/cinder/volume/drivers/pure.py
index b0a435b9ec8167506b7faee56f1c91134fcffd32..c35b7df1e1f5fb9dd42e01762265d44406ae2eb5 100644 (file)
--- a/cinder/volume/drivers/pure.py
+++ b/cinder/volume/drivers/pure.py
@@ -329,6 +329,7 @@ class PureISCSIDriver(san.SanISCSIDriver):
             }
         return username, password, initiator_updates
 
+    @utils.synchronized('PureISCSIDriver._connect', external=True)
     def _connect(self, volume, connector, initiator_data):
         """Connect the host and volume; return dict describing connection."""
         connection = None