This material is made to educate operators, who deal with cassandra in production environment and based on cassandra version 1.1.X
? ??? Cassandra? ?? ???? ???? ??, ???? ?? ?? ??? Cassandra 1.1.X? ???? ??? ?????.
This document discusses the results of a NoSQL database benchmark test conducted by NHN on Cassandra, HBase and MongoDB. It describes the test environment and four test cases performed: data insertion, random reads and updates on existing data, reads only on existing data, and random reads and inserts with additional data added. The test measured average transactions per second for each database and test case. Cassandra and HBase performance varied depending on compaction levels while MongoDB update and insert performance lagged the others.
This document provides an introduction and overview of Couchbase Server, a NoSQL document database. It describes Couchbase Server as the leading open source project focused on distributed database technology. It outlines key features such as easy scalability, always-on availability, flexible data modeling using JSON documents, and core features including clustering, replication, indexing and querying. The document also provides examples of basic write, read and update operations on a single node and cluster, adding nodes, handling node failures, indexing and querying capabilities, and cross data center replication.
This material is made to educate operators, who deal with cassandra in production environment and based on cassandra version 1.1.X
? ??? Cassandra? ?? ???? ???? ??, ???? ?? ?? ??? Cassandra 1.1.X? ???? ??? ?????.
This document discusses the results of a NoSQL database benchmark test conducted by NHN on Cassandra, HBase and MongoDB. It describes the test environment and four test cases performed: data insertion, random reads and updates on existing data, reads only on existing data, and random reads and inserts with additional data added. The test measured average transactions per second for each database and test case. Cassandra and HBase performance varied depending on compaction levels while MongoDB update and insert performance lagged the others.
This document provides an introduction and overview of Couchbase Server, a NoSQL document database. It describes Couchbase Server as the leading open source project focused on distributed database technology. It outlines key features such as easy scalability, always-on availability, flexible data modeling using JSON documents, and core features including clustering, replication, indexing and querying. The document also provides examples of basic write, read and update operations on a single node and cluster, adding nodes, handling node failures, indexing and querying capabilities, and cross data center replication.
This document provides information about the Grow a Row, Share a Row program in Vancouver that encourages gardeners to plant an extra row of vegetables to donate to local programs. It lists several drop-off locations around the city where gardeners can donate their extra harvest from June to October. Participating helps support the community and counts towards the City's goal of having 2,010 community gardens by 2010.