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From ctubbsii <>
Subject [GitHub] accumulo-examples pull request #1: ACCUMULO-4511 Adding examples from Accumu...
Date Wed, 07 Dec 2016 22:02:24 GMT
Github user ctubbsii commented on a diff in the pull request:
    --- Diff: ---
    @@ -1 +1,107 @@
    +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
    +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.
     # Apache Accumulo Examples
    +## Setup instructions
    +Before running any of the examples, the following steps must be performed.
    +1. Clone and build this repository
    +        git clone
    +        mvn clean package
    +2. Install and run Accumulo via the instructions found in
    +   Remember the instance name. It will be referred to as "instance" throughout
    +   the examples. A comma-separated list of zookeeper servers will be referred
    +   to as "zookeepers".
    +3. Create an Accumulo user (for help see the 'User Administration' section of the 
    +   [user manual][manual]), or use the root user. This user and their password
    +   should replace any reference to "username" or "password" in the examples. This
    +   user needs the ability to create tables.
    +In all commands, you will need to replace "instance", "zookeepers",
    +"username", and "password" with the values you set for your Accumulo instance.
    +Commands intended to be run in bash are prefixed by '$'. These are always
    +assumed to be run the from the root of this repository.
    +It is expected that the `accumulo` and `` commands are your `PATH`.
    +These commands are found in the `bin/` and `contrib/` directories of your
    +Accumulo installation.
    +Commands intended to be run in the Accumulo shell are prefixed by '>'.
    +## Available Examples
    +Each example below highlights a feature of Apache Accumulo.
    +| Example | Description |
    +| [batch] | Using the batch writer and batch scanner |
    +| [bloom] | Creating a bloom filter enabled table to increase query performance |
    +| [bulkIngest] | Ingesting bulk data using map/reduce jobs on Hadoop |
    +| [classpath] | Using per-table classpaths |
    +| [client] | Using table operations, reading and writing data in Java. |
    +| [combiner] | Using example StatsCombiner to find min, max, sum, and count. |
    +| [compactionStrategy] | Configuring a compaction strategy |
    +| [constraints] | Using constraints with tables. |
    +| [dirlist] | Storing filesystem information. |
    +| [export] | Exporting and importing tables. |
    +| [filedata] | Storing file data. |
    +| [filter] | Using the AgeOffFilter to remove records more than 30 seconds old. |
    +| [helloworld] | Inserting records both inside map/reduce jobs and outside. And reading
records between two rows. |
    +| [isolation] | Using the isolated scanner to ensure partial changes are not seen. |
    +| [mapred] | Using MapReduce to read from and write to Accumulo tables. |
    +| [maxmutation] | Limiting mutation size to avoid running out of memory. |
    +| [regex] | Using MapReduce and Accumulo to find data using regular expressions. |
    +| [reservations] | Using conditional mutations to implement simple reservation system.
    +| [rgbalancer] | Using a balancer to spread groups of tablets within a table evenly |
    +| [rowhash] | Using MapReduce to read a table and write to a new column in the same table.
    +| [sample] | Building and using sample data in Accumulo. |
    +| [shard] | Using the intersecting iterator with a term index partitioned by document.
    +| [tabletofile] | Using MapReduce to read a table and write one of its columns to a file
in HDFS. |
    +| [terasort] | Generating random data and sorting it using Accumulo. |
    +| [visibility] | Using visibilities (or combinations of authorizations). Also shows user
permissions. |
    --- End diff --
    A list might be more readable than a table.

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