ACCUMULO-1857 Clean up the README to be more informative about what users must do instead of guessing at what their distribution might do.
Project: http://git-wip-us.apache.org/repos/asf/accumulo/repo Commit: http://git-wip-us.apache.org/repos/asf/accumulo/commit/b0ec17de Tree: http://git-wip-us.apache.org/repos/asf/accumulo/tree/b0ec17de Diff: http://git-wip-us.apache.org/repos/asf/accumulo/diff/b0ec17de Branch: refs/heads/master Commit: b0ec17de67e71174cea7c80e986f99ef0e9831b5 Parents: 806f00e Author: Josh Elser <els...@apache.org> Authored: Wed Nov 6 17:13:24 2013 -0500 Committer: Josh Elser <els...@apache.org> Committed: Wed Nov 6 17:13:24 2013 -0500 ---------------------------------------------------------------------- README | 21 +++++++++------------ 1 file changed, 9 insertions(+), 12 deletions(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/accumulo/blob/b0ec17de/README ---------------------------------------------------------------------- diff --git a/README b/README index 4b29864..2c47ed3 100644 --- a/README +++ b/README @@ -81,18 +81,15 @@ You will need to have hadoop installed and configured on your system. Accumulo you must enable HDFS durable sync. How you enable this depends on your version of Hadoop. Please consult the table below for information regarding your version. If you need to set the coniguration, please be sure to restart HDFS. See -ACCUMULO-623 for more information. - -HADOOP RELEASE VERSION SYNC NAME DEFAULT -Apache Hadoop 0.20.205 dfs.support.append false -Apache Hadoop 0.23.x dfs.support.append true -Apache Hadoop 1.0.x dfs.support.append false -Apache Hadoop 1.1.x dfs.durable.sync true -Apache Hadoop 2.0.0-2.0.4 dfs.support.append true -Cloudera CDH 3u0-3u3 ???? true -Cloudera CDH 3u4 dfs.support.append true -Hortonworks HDP `1.0 dfs.support.append false -Hortonworks HDP `1.1 dfs.support.append false +ACCUMULO-623 and ACCUMULO-1637 for more information. + +The following releases of Apache Hadoop require special configuration to ensure +that data is not inadvertently lost; however, in all releases of Apache Hadoop, +`dfs.durable.sync` and `dfs.support.append` should *not* be configured as `false`. + +VERSION NAME=VALUE +0.20.205.0 - dfs.support.append=true +1.0.x - dfs.support.append=true The example accumulo configuration files are placed in directories based on the memory footprint for the accumulo processes. If you are using native libraries
