[PATCH 1/2] Re-claim memory in C library periodically

[Tony Asleson]

The lvm C library requires that you close/re-open for long
running processes to reclaim memory.

Signed-off-by: Tony Asleson <tasleson(a)redhat.com&gt;
---
 targetd/block.py | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/targetd/block.py b/targetd/block.py
index da78872..35c27ab 100644
--- a/targetd/block.py
+++ b/targetd/block.py
@@ -54,13 +54,24 @@ def vgopen(pool_name):
     """
     Helper function to check/close vg for us.
     """
+    global lib_calls
     pool_check(pool_name)
     with contextlib.closing(lvm.vgOpen(pool_name, "w")) as vg:
         yield vg
 
+    #Clean library periodically
+    lib_calls += 1
+    if lib_calls > 50:
+        try:
+            #May not be present if using older library
+            lvm.gc()
+        except AttributeError:
+            pass
+        lib_calls = 0
 
 pools = []
 target_name = None
+lib_calls = 0
 
 
 #
-- 
1.8.2.1