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From joshelser <...@git.apache.org>
Subject [GitHub] accumulo pull request #211: ACCUMULO-4480 - update user manual for 1.8
Date Mon, 06 Feb 2017 21:16:36 GMT
Github user joshelser commented on a diff in the pull request:

    https://github.com/apache/accumulo/pull/211#discussion_r99686023
  
    --- Diff: docs/src/main/asciidoc/chapters/administration.txt ---
    @@ -1182,17 +1182,19 @@ conditions that vary from the environments individually tested
in the various
     components. For example, Accumulo's use of HDFS includes many short block
     reads, which differs from the more common full file read used in most
     map/reduce applications. We have found that certain versions of Accumulo and
    -Hadoop will include stability bugs that greatly affect overall stability. In
    -our testing, Accumulo 1.6.2, Hadoop 2.6.0, and Zookeeper 3.4.6 resulted in a
    -stable VM clusters that did not fail a month of testing, while Accumulo 1.6.1,
    -Hadoop 2.5.1, and Zookeeper 3.4.5 had a mean time between failure of less than
    -a week under heavy ingest and query load. We expect that results will vary with
    -other configurations, and you should choose your software versions with that in
    -mind.
    -
    -
    -
    -
    -
    -
    -
    +Hadoop will include stability bugs that greatly affect overall stability.
    +Release notes typically contain information about versions used in
    +release testing.
    +
    +The following table shows the Hadoop, Zookeeper and
    +Thrift versions defined in the dependency section of the POM for building the
    +artifacts.  
    +
    +|================================================
    +|Accumulo |Hadoop |Zookeeper |Thrift
    +|1.7            |2.2.0     |3.4.6          |0.9.1
    +|1.8            |2.6.4     |3.4.6          |0.9.3
    +|================================================
    +
    --- End diff --
    
    That works too.
    
    Makes me wonder: are we signing up to modify all release notes if/when we find out that
we were shipping Accumulo that didn't work with some specific version? I'm just now thinking
through the practice of what we need to do when Hadoop x.y.z is busted.


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