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https://hbase.apache.org/acid-semantics
Tunability
All of the above guarantees must be possible within Apache HBase
https://hbase.apache.org/sponsors
The below companies have been gracious enough to provide their commercial tool offerings free of charge to the Apache HBase™ project
https://hbase.apache.org/docs/security/web-ui
HBase allows the adminstrators to be defined via a list of usernames or groups in hbase-site
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/mapreduce/TableOutputFormat.html
Used specifying remote cluster when copying between hbase clusters (the source is picked up from 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
Our live production site is directly served from HBase
https://hbase.apache.org/docs/security/tls
Add the following configuration to hbase-site
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In case the table goes out of date, the unit tests which check for accuracy of permissions can be found in hbase-server/src/test/java/org/apache/hadoop/hbase/security/access/TestAccessController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/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/devapidocs/org/apache/hadoop/hbase/client/Connection.html
getAdmin
Retrieve an Admin implementation to administer an HBase cluster
https://hbase.apache.org/apidocs/org/apache/hadoop/hbase/HColumnDescriptor.html
LZO is not bundled as part of the hbase distribution
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/master/balancer/StochasticLoadBalancer.html
The computed costs are scaled by their respective multipliers:
hbase
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/client/Get.html
To limit the number of versions of each column to be returned, execute readVersions
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/filter/SingleColumnValueFilter.html
Only the value of this column will be tested
https://hbase.apache.org/1.4/devapidocs/org/apache/hadoop/hbase/client/HTable.html
Used to communicate with a single HBase table
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/util/RegionSplitter.HexStringSplit.html
Since this split algorithm uses hex strings as keys, it is easy to read & write in the shell but takes up more space and may be non-intuitive
https://hbase.apache.org/2.6/devapidocs/org/apache/hadoop/hbase/client/HTable.html
Used to communicate with a single HBase table
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/mapreduce/MultiTableOutputFormat.html
OutputFormat<ImmutableBytesWritable,Mutation>
Hadoop output format that writes to one or more HBase tables
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/filter/FirstKeyOnlyFilter.html
This filter can be used to more efficiently perform row count operations
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/filter/RowFilter.html
This filter can be wrapped with WhileMatchFilter to add more control
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/filter/FamilyFilter.html
This filter can be wrapped with WhileMatchFilter and SkipFilter to add more control
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/client/Scan.html
Rather than specifying a single row, an optional startRow and stopRow may be defined
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/client/Put.html
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
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/filter/RegexStringComparator.html
The row key needs to be converted to a String in order to be matched against the regular expression
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/filter/InclusiveStopFilter.html
If filterRowKey returns true, filterCell needs to be consistent with it
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/client/Delete.html
Cells defining timestamp for a future point in time (timestamp > current time) will not be deleted
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/filter/ColumnRangeFilter.html
For example, if minColumn is 'an', and maxColumn is 'be', it will pass keys with columns like 'ana', 'bad', but not keys with columns like 'bed', 'eye' If minColumn is null, there is no lower bound
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/wal/WAL.html
Extant edits are left in place in backing storage to be replayed later
https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/io/hfile/CombinedBlockCache.html
Since HBASE-29249, CacheConfig implements PropagatingConfigurationObserver and registers itself together with the used BlockCache implementation for notifications of dynamic configuration changes