| // 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. |
| |
| == Introduction |
| Apache Accumulo is a highly scalable structured store based on Google's BigTable. |
| Accumulo is written in Java and operates over the Hadoop Distributed File System |
| (HDFS), which is part of the popular Apache Hadoop project. Accumulo supports |
| efficient storage and retrieval of structured data, including queries for ranges, and |
| provides support for using Accumulo tables as input and output for MapReduce |
| jobs. |
| |
| Accumulo features automatic load-balancing and partitioning, data compression |
| and fine-grained security labels. |
