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https://hbase.apache.org/docs/security/web-ui
To change the port for the web UI for a given HBase component, configure that port's setting in hbase-site
https://hbase.apache.org/docs/architecture/bulk-loading
jar completebulkload [-c /path/to/hbase/config/hbase-site
https://hbase.apache.org/powered-by-hbase
We use Hadoop and HBase to power a site-wide, real-time activity feed system for all of our members and groups
https://hbase.apache.org/docs/getting-started
Choose a download site from this list of Apache Download Mirrors
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/regionserver/RegionSplitPolicy.html
0, RegionSplitPolicy can be instantiated on the Master-side so the Phoenix local-indexer can block default hbase behavior
https://hbase.apache.org/docs/acl-matrix
In case the table goes out of date, the unit tests which check for accuracy of permissions can be found in hbase-server/src/test/java/org/apache/hadoop/hbase/security/access/TestAccessController
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/client/Connection.html
Configuration
boolean
Methods inherited from interface org
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/client/Get.html
With column-specific filters, like SingleColumnValueFilter w/filterIfMissing == true, this can deliver huge perf gains when there's a cf with lots of data; however, it can also lead to some inconsistent results, as follows: - if someone does a concurrent update to both column families in question you may get a row
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/filter/SingleColumnValueFilter.html
@Public public class SingleColumnValueFilter extends FilterBase
This filter is used to filter cells based on value. It takes a CompareOperator operator (equal, greater, not equal, etc), and either a byte [] value or a ByteArrayComparable.
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/filter/FilterList.html
MUST_PASS_ALL evaluates lazily: evaluation stops as soon as one filter does not include the Cell
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/client/Delete.html
This is an expensive call in that on the server-side, it first does a get to find the latest versions timestamp
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/client/Scan.html
(package private) Scan
Methods inherited from class org
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/mapreduce/TableReducer.html
Direct Known Subclasses:
@Public public abstract class TableReducer<KEYIN,VALUEIN,KEYOUT> extends org
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/mapreduce/IdentityTableMapper.html
Pass the given key and record as-is to the reduce phase.
Nested Class Summary
org.apache.hadoop.mapreduce.Mapper.Context
Modifier and Type
void
Methods inherited from class org.apache.hadoop.mapreduce.Mapper
Use this before submitting a
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/mapreduce/HRegionPartitioner.html
All Implemented Interfaces:
@Public public class HRegionPartitioner<KEY,VALUE> extends org
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.html
Field Summary
Fields inherited from class org
https://hbase.apache.org/apidocs/org/apache/hadoop/hbase/HColumnDescriptor.html
Not using enum here because HDFS is not using enum for storage policy, see org
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/wal/WAL.html
A Write Ahead Log (WAL) provides service for reading, writing waledits. This interface provides APIs for WAL users (such as RegionServer) to use the WAL (do append, sync, etc). Note that some internals, such as log rolling and performance
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/mapreduce/MultiTableOutputFormat.html
@Public public class MultiTableOutputFormat extends org
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/client/Put.html
Used to perform Put operations for a single row.
To perform a Put, instantiate a Put object with the row to insert to, and for each column to be inserted, execute add or add if setting the timestamp.
Field Summary
Put(byte[] rowArray, int
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/filter/BinaryPrefixComparator.html
@Public public class BinaryPrefixComparator extends ByteArrayComparable
A comparator which compares against a specified byte array, but only compares up to the length of this byte array. For the rest it is similar to BinaryComparator.
Field
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/filter/InclusiveStopFilter.html
@Public public class InclusiveStopFilter extends FilterBase
A Filter that stops after the given row. There is no "RowStopFilter" because the Scan spec allows you to specify a stop row. Use this filter to include the stop row, eg: [A,Z].
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/filter/RegexStringComparator.html
@Public public class RegexStringComparator extends ByteArrayComparable
This comparator is for use with CompareFilter implementations, such as RowFilter, QualifierFilter, and ValueFilter, for filtering based on the value of a given column.
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/filter/BinaryComponentComparator.html
@Public public class BinaryComponentComparator extends ByteArrayComparable
A comparator which compares against a specified byte array, but only compares specific portion of the byte array. For the rest it is similar to BinaryComparator.
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/filter/FirstKeyOnlyFilter.html
A filter that will only return the first KV from each row.
This filter can be used to more efficiently perform row count operations.
Nested Class Summary
Modifier and Type
boolean
protected boolean
int
void
protected void
byte[]
Methods
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/util/RegionSplitter.DecimalStringSplit.html
Field Summary
Methods inherited from class org
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/master/normalizer/SimpleRegionNormalizer.html
Simple implementation of region normalizer. Logic in use:
Get all regions of a given table
Get avg size S of the regions in the table (by total size of store files reported in RegionMetrics)
For each region R0, if R0 is bigger than S * 2
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/util/RegionSplitter.HexStringSplit.html
Field Summary
Methods inherited from class org
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/filter/SubstringComparator.html
@Public public class SubstringComparator extends ByteArrayComparable
This comparator is for use with SingleColumnValueFilter, for filtering based on the value of a given column. Use it to test if a given substring appears in a cell value in
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/filter/FamilyFilter.html
@Public public class FamilyFilter extends CompareFilter
This filter is used to filter based on the column family. It takes an operator (equal, greater, not equal, etc) and a byte [] comparator for the column family portion of a key.
This