hbase monitoring

The following error is reported when you log on to the server after setting up the HBase environment: Hadoop @ gpmasterlogs] $ hbaseshellSLF4J: Classpathcontainsmult When you log on to the server after setting up the HBase Environment last time, the following error is reported: Hadoop @ gpmaster logs] $ hbase shell SLF4J: Class path contains mult The followi

Recently in the study of the use of hbase, and carefully read an official recommended blog, here on the side of the translation as a summary of the way and everyone together to comb the HBase data model and basic table design ideas. Official recommended Blog Original address: http://0b4af6cdc2f0c5998459-c0245c5c937c5dedcca3f1764ecc9b2f.r43.cf2.rackcdn.com/9353-login1210_ Khurana.pdf Click on the Open link

1. Enter the hbase shell command: $ {Hbase_home}/bin/hbase Shell 2. Obtain the command list: Hbase> help 3. Alter: 1) In the 't1' table, add or modify a columnfamily => 'f1' and keep its maxversions as 5: Hbase> alter 't1', {name => 'f1', versions => 5} 2) Delete columnfamily whose value is 'f1 'in 't1:

Transferred from: http://my.oschina.net/u/189445/blog/595232 HBase shell command Describe Alter Modify Column family (family) mode Count Number of rows in the statistics table Create Create a table Describe Show table-related details Delete Deletes the value of the specified object (can be a value for a table, row, column, or a timestamp v

http://blog.csdn.net/zhaonanemail/article/details/6654558 Here are a few key relationships: 1. The results of the map and reduce operations appear to be written to hbase, but in fact HBase Hlog and storefile files in flush to disk operations, these two files are stored in HDFs datanode. HDFs is the permanent store. What does 2.ZooKeeper have to do with Hadoop Core and

There are several main relationships: 1. the results produced after map and reduce operations seem to have been written to hbase. However, when the files in hlog and storefile of hbase are flush to disk, these two files are stored in the HDFS datanode, and HDFS is permanently stored. 2. What is the relationship between zookeeper and hadoop core and hbase? Wha

Reprint: http://ju.outofmemory.cn/entry/50064With the drive of Big data table application, our hbase cluster is getting bigger and larger, however, due to some uncertainties in machine, network and HBase, the system is faced with some uncertain faults.Therefore, HBase has a lot of region components and needs to control the state of each table's region. Analysis:

Author: those things |ArticleCan be reproduced. Please mark the original source and author information in the form of a hyperlink Web: http://www.cnblogs.com/panfeng412/archive/2013/06/08/hbase-slow-query-troubleshooting.html Recently, the hbase cluster encountered a slow query request. The following describes the problem and the troubleshooting process. 1. Problems Found There is an