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From ktur...@apache.org
Subject svn commit: r1574979 - in /accumulo/site/trunk/content/release_notes: ./ 1.5.1_release_notes.md
Date Thu, 06 Mar 2014 17:51:01 GMT
Author: kturner
Date: Thu Mar  6 17:51:01 2014
New Revision: 1574979

URL: http://svn.apache.org/r1574979
Log:
CMS commit to accumulo by kturner

Added:
    accumulo/site/trunk/content/release_notes/
    accumulo/site/trunk/content/release_notes/1.5.1_release_notes.md

Added: accumulo/site/trunk/content/release_notes/1.5.1_release_notes.md
URL: http://svn.apache.org/viewvc/accumulo/site/trunk/content/release_notes/1.5.1_release_notes.md?rev=1574979&view=auto
==============================================================================
--- accumulo/site/trunk/content/release_notes/1.5.1_release_notes.md (added)
+++ accumulo/site/trunk/content/release_notes/1.5.1_release_notes.md Thu Mar  6 17:51:01 2014
@@ -0,0 +1,89 @@
+Title: Apache Accumulo 1.5.1 Release Notes
+Notice:    Licensed to the Apache Software Foundation (ASF) under one
+           or more contributor license agreements.  See the NOTICE file
+           distributed with this work for additional information
+           regarding copyright ownership.  The ASF licenses this file
+           to you under the Apache License, Version 2.0 (the
+           "License"); you may not use this file except in compliance
+           with the License.  You may obtain a copy of the License at
+           .
+             http://www.apache.org/licenses/LICENSE-2.0
+           .
+           Unless required by applicable law or agreed to in writing,
+           software distributed under the License is distributed on an
+           "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+           KIND, either express or implied.  See the License for the
+           specific language governing permissions and limitations
+           under the License.
+
+## Accumulo 1.5.1 Release Notes (Work in progress)
+
+
+### Notable Improvements
+
+Accumulo client code creates background threads that users can not stop.  This
+causes problems when using Accumulo with Tomcat or JBoss.  [ACCUMULO-2128][3]
+introduced the static utility org.apache.accumulo.core.util.CleanUp to clean
+these threads up.
+
+If IPv6 is enabled on nodes but not in use on the network, then Accumulo may
+have issues communicating with itself.  [ACCUMULO-2262][4] adds java
+configuration to startup scripts to prefer IPv4.
+
+[ACCUMULO-1933][7] allows lower case memory units in Accumulo configuration.
+
+[ACCUMULO-2360][14] allows users to configure the maximum frame size an
+Accumulo server will read.  This prevents non Accumulo client from connecting
+and causing memory exhaustion.
+
+The following documentation updates were made : [ACCUMULO-2127][17],
+[ACCUMULO-1956][18], and [ACCUMULO-1428][19].
+
+### Notable Bug Fixes
+
+ * [ACCUMULO-1800][5] fixed deletes made via the Proxy.
+ * [ACCUMULO-1994][6] fixed ranges in the Proxy.
+ * [ACCUMULO-2234][8] fixed offline map reduce over non default HDFS location
+ * [ACCUMULO-1615][15] fixed service accumulo-tserver stop
+ * [ACCUMULO-1876][16] fixed issues with ivy
+
+Some important internal bugs were fixed in Accumulo that should be considered
+when deciding to upgrade. These bugs are : [ACCUMULO-2057][9],
+[ACCUMULO-2261][10], [ACCUMULO-2037][11], [ACCUMULO-1821][12],
+[ACCUMULO-1572][13], [ACCUMULO-2078][20], [ACCUMULO-1985][21],
+[ACCUMULO-1999][22],[ACCUMULO-2065][23], and [ACCUMULO-1630][24]. 
+
+
+### Known Issues
+
+When using Accumulo 1.5 and Hadoop 2, Accumulo will call hsync() on hdfs.
+Calling hsync improves durability by ensuring data is on disk, however calling
+it frequently slows writes. A work around is to increase
+tserver.mutation.queue.max.  See [ACCUMULO-1905 comment][1], [ACCUMULO-1950][2], and
+the new tserver.mutation.queue.max documentation for more information.
+
+
+[1]: https://issues.apache.org/jira/browse/ACCUMULO-1905?focusedCommentId=13915208&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13915208
+[2]: https://issues.apache.org/jira/browse/ACCUMULO-1950
+[3]: https://issues.apache.org/jira/browse/ACCUMULO-2128 
+[4]: https://issues.apache.org/jira/browse/ACCUMULO-2262
+[5]: https://issues.apache.org/jira/browse/ACCUMULO-1800
+[6]: https://issues.apache.org/jira/browse/ACCUMULO-1994
+[7]: https://issues.apache.org/jira/browse/ACCUMULO-1933
+[8]: https://issues.apache.org/jira/browse/ACCUMULO-2234
+[9]: https://issues.apache.org/jira/browse/ACCUMULO-2057
+[10]: https://issues.apache.org/jira/browse/ACCUMULO-2261
+[11]: https://issues.apache.org/jira/browse/ACCUMULO-2037
+[12]: https://issues.apache.org/jira/browse/ACCUMULO-1821
+[13]: https://issues.apache.org/jira/browse/ACCUMULO-1572
+[14]: https://issues.apache.org/jira/browse/ACCUMULO-2360
+[15]: https://issues.apache.org/jira/browse/ACCUMULO-1615
+[16]: https://issues.apache.org/jira/browse/ACCUMULO-1876
+[17]: https://issues.apache.org/jira/browse/ACCUMULO-2127
+[18]: https://issues.apache.org/jira/browse/ACCUMULO-1956
+[19]: https://issues.apache.org/jira/browse/ACCUMULO-1428
+[20]: https://issues.apache.org/jira/browse/ACCUMULO-2078
+[21]: https://issues.apache.org/jira/browse/ACCUMULO-1985
+[22]: https://issues.apache.org/jira/browse/ACCUMULO-1999
+[23]: https://issues.apache.org/jira/browse/ACCUMULO-2065
+[24]: https://issues.apache.org/jira/browse/ACCUMULO-1630
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