From e00270b51896f168d5013b7dc92ec7f8b9e19da3 Mon Sep 17 00:00:00 2001
From: Dan Mick <dan.mick@redhat.com>
Date: Wed, 10 Dec 2014 13:19:16 -0800
Subject: [PATCH 1/2] rados.py: remove Rados.__del__(); it just causes problems
Recent versions of Python contain a change to thread shutdown that
causes ceph to hang on exit; see http://bugs.python.org/issue21963.
As it turns out, this is relatively easy to avoid by not spawning
threads on exit, as Rados.__del__() will certainly do by calling
shutdown(); I suspect, but haven't proven, that the problem is
that shutdown() tries to start() a threading.Thread() that never
makes it all the way back to signal start().
Also add a PendingReleaseNote and extra doc comments to clarify.
Fixes: #8797
Signed-off-by: Dan Mick <dan.mick@redhat.com>
(cherry picked from commit 5ba9b8f21f8010c59dd84a0ef2acfec99e4b048f)
Conflicts:
PendingReleaseNotes
---
src/pybind/rados.py | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/src/pybind/rados.py b/src/pybind/rados.py
index 0fbd10e..ec68919 100644
--- a/src/pybind/rados.py
+++ b/src/pybind/rados.py
@@ -246,7 +246,8 @@ Rados object in state %s." % (self.state))
def shutdown(self):
"""
- Disconnects from the cluster.
+ Disconnects from the cluster. Call this explicitly when a
+ Rados.connect()ed object is no longer used.
"""
if (self.__dict__.has_key("state") and self.state != "shutdown"):
run_in_thread(self.librados.rados_shutdown, (self.cluster,))
@@ -260,9 +261,6 @@ Rados object in state %s." % (self.state))
self.shutdown()
return False
- def __del__(self):
- self.shutdown()
-
def version(self):
"""
Get the version number of the ``librados`` C library.
@@ -410,7 +408,7 @@ Rados object in state %s." % (self.state))
def connect(self, timeout=0):
"""
- Connect to the cluster.
+ Connect to the cluster. Use shutdown() to release resources.
"""
self.require_state("configuring")
ret = run_in_thread(self.librados.rados_connect, (self.cluster,),
--
1.9.3