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From sn...@apache.org
Subject [3/6] cassandra git commit: Remove offheap_buffer as option for memtable_allocation_type in cassandra.yaml
Date Wed, 01 Mar 2017 10:08:29 GMT
Remove offheap_buffer as option for memtable_allocation_type in cassandra.yaml

patch by Brad Vernon; reviewed by Robert Stupp for CASSANDRA-13179


Project: http://git-wip-us.apache.org/repos/asf/cassandra/repo
Commit: http://git-wip-us.apache.org/repos/asf/cassandra/commit/873660cf
Tree: http://git-wip-us.apache.org/repos/asf/cassandra/tree/873660cf
Diff: http://git-wip-us.apache.org/repos/asf/cassandra/diff/873660cf

Branch: refs/heads/trunk
Commit: 873660cf58cabb3942dfd4dc9c270d27b90a54ce
Parents: 56d3f93
Author: Brad Vernon <brad.vernon@datastax.com>
Authored: Wed Mar 1 11:05:33 2017 +0100
Committer: Robert Stupp <snazy@snazy.de>
Committed: Wed Mar 1 11:05:33 2017 +0100

----------------------------------------------------------------------
 CHANGES.txt         | 1 +
 conf/cassandra.yaml | 6 +++++-
 2 files changed, 6 insertions(+), 1 deletion(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/cassandra/blob/873660cf/CHANGES.txt
----------------------------------------------------------------------
diff --git a/CHANGES.txt b/CHANGES.txt
index a63bd12..2289334 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,4 +1,5 @@
 3.0.12
+ * Update c.yaml doc for offheap memtables (CASSANDRA-13179)
  * Faster StreamingHistogram (CASSANDRA-13038)
  * Legacy deserializer can create unexpected boundary range tombstones (CASSANDRA-13237)
  * Remove unnecessary assertion from AntiCompactionTest (CASSANDRA-13070)

http://git-wip-us.apache.org/repos/asf/cassandra/blob/873660cf/conf/cassandra.yaml
----------------------------------------------------------------------
diff --git a/conf/cassandra.yaml b/conf/cassandra.yaml
index 790dfd7..61d3844 100644
--- a/conf/cassandra.yaml
+++ b/conf/cassandra.yaml
@@ -397,7 +397,11 @@ concurrent_materialized_view_writes: 32
 # Specify the way Cassandra allocates and manages memtable memory.
 # Options are:
 #   heap_buffers:    on heap nio buffers
-#   offheap_buffers: off heap (direct) nio buffers
+#
+# Note: offheap_buffers are not supported in Cassandra 3.0 - 3.3.
+# They have been re-introduced in Cassandra 3.4. For details see
+# https://issues.apache.org/jira/browse/CASSANDRA-9472 and
+# https://issues.apache.org/jira/browse/CASSANDRA-11039
 memtable_allocation_type: heap_buffers
 
 # Total space to use for commit logs on disk.


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