Region Server: <%= serverInfo.getServerAddress().getHostname() %>:<%= serverInfo.getServerAddress().getPort() %>
Region Server Attributes
| Attribute Name | Value | Description |
|---|---|---|
| HBase Version | <%= org.apache.hadoop.hbase.util.VersionInfo.getVersion() %>, r<%= org.apache.hadoop.hbase.util.VersionInfo.getRevision() %> | HBase version and svn revision |
| HBase Compiled | <%= org.apache.hadoop.hbase.util.VersionInfo.getDate() %>, <%= org.apache.hadoop.hbase.util.VersionInfo.getUser() %> | When HBase version was compiled and by whom |
| Load | <%= serverInfo.getLoad().toString(interval) %> | Requests per second and count of loaded regions |
Online Regions
<% if (onlineRegions != null && onlineRegions.size() > 0) { %>| Region Name | Encoded Name | Start Key | End Key |
|---|---|---|---|
| <%= r.getRegionNameAsString() %> | <%= r.getEncodedName() %> | <%= Bytes.toString(r.getStartKey()) %> | <%= Bytes.toString(r.getEndKey()) %> |
Region names are made of the containing table's name, a comma, the start key, a comma, and a randomly generated region id. To illustrate, the region named domains,apache.org,5464829424211263407 is party to the table domains, has an id of 5464829424211263407 and the first key in the region is apache.org. The -ROOT- and .META. 'tables' are internal sytem tables (or 'catalog' tables in db-speak). The -ROOT- keeps a list of all regions in the .META. table. The .META. table keeps a list of all regions in the system. The empty key is used to denote table start and table end. A region with an empty start key is the first region in a table. If region has both an empty start and an empty end key, its the only region in the table. See HBase Home for further explication.
<% } else { %>
Not serving regions
<% } %>