authors/changelog for 2.15.1

Change-Id: Id5f5467a50119d521fead28faf751c621ce1e4ee

1 files changed, 18 insertions, 0 deletions

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+swift (2.15.1)
+    * Fixed a bug introduced in 2.15.0 where the object reconstructor
+      would exit with a traceback if no EC policy was configured.
+
+    * Fixed deadlock when logging from a tpool thread.
+
+      The object server runs certain IO-intensive methods outside the
+      main pthread for performance. Previously, if one of those methods
+      tried to log, this can cause a crash that eventually leads to an
+      object server with hundreds or thousands of greenthreads, all
+      deadlocked. The fix is to use a mutex that works across different
+      greenlets and different pthreads.
+
+    * The object reconstructor can now rebuild an EC fragment for an
+      expired object.
+
+    * Various other minor bug fixes and improvements.
+
 swift (2.15.0)
 
     * Add Composite Ring Functionality