Uses of Package
org.apache.hadoop.hbase.regionserver

A Store data file.

RegionScanner describes iterators over rows in an HRegion.

Defines the procedure to atomically perform multiple scans and mutations on a HRegion.

Services provided by HRegionServer

Objects implementing this interface actually do the task that has been acquired by a SplitLogWorker.

This interface is used for the tracking and enforcement of Deletes during the course of a Get or Scan operation.

Scanner that returns the next KeyValue.

Regions store data for a certain region of a table.

RegionScanner describes iterators over rows in an HRegion.

Defines the procedure to atomically perform multiple scans and mutations on a HRegion.

Interface for objects that hold a column family in a Region.

Reader for a StoreFile.

Internal scanners differ from client-side scanners in that they operate on HStoreKeys and byte[] instead of RowResults.

Immutable information for scans over a store.

Interface for objects that hold a column family in a Region.

Reader for a StoreFile.

Implements the regionserver RPC services.

Reads special method annotations and table names to figure a priority for use by QoS facility in ipc; e.g: rpcs to hbase:meta get priority.

HRegionServer makes a set of HRegions available to clients.

Interface to Map of online regions.

Implements the regionserver RPC services.

Services provided by HRegionServer

HRegionServer makes a set of HRegions available to clients.

Services provided by HRegionServer

Regions store data for a certain region of a table.

Base class for RowProcessor with some default implementations.

A Set of Cells implemented on top of a ConcurrentSkipListMap.

Simple wrapper for a byte buffer and a counter.

Compact region on request and then run split if appropriate

A RegionSplitPolicy implementation which splits a region as soon as any of its store files exceeds a maximum configurable size.

This interface is used for the tracking and enforcement of Deletes during the course of a Get or Scan operation.

Returns codes for delete result.

A flush policy determines the stores that need to be flushed when flushing a region.

Listener which will get notified regarding flush requests of regions.

State and utility processing HRegion.getClosestRowBefore(byte[], byte[]).

POJO which holds the result of memory tuning done by HeapMemoryTuner implementation.

A chunk of memory out of which allocations are sliced.

Struct-like class that tracks the progress of a batch operation, accumulating status codes and tracking the index at which processing is proceeding.

RegionScannerImpl is used to combine scanners from multiple Stores (aka column families).

Class used to represent a lock on a row.

View to an on-disk Region.

A Store holds a column family in a Region.

Internal scanners differ from client-side scanners in that they operate on HStoreKeys and byte[] instead of RowResults.

Last flushed sequence Ids for the regions and their stores on region server

LeaseListener is an interface meant to be implemented by users of the Leases class.

This class tracks a single Lease.

Runs periodically to determine if the WAL should be rolled.

The MemStore holds in-memory modifications to the Store.

Thread that flushes cache on request NOTE: This class extends Thread rather than Chore because the sleep time can be interrupted when there is something to do, rather than the Chore sleep time which is invariant.

A memstore-local allocation buffer.

This is the glue between the HRegion and whatever hadoop shim layer is loaded (hbase-hadoop1-compat or hbase-hadoop2-compat).

Interface for classes that expose metrics about the regionserver.

This interface will be implemented to allow single regions to push metrics into MetricsRegionAggregateSource that will in turn push data to the Hadoop metrics system.

Manages the read/write consistency.

A "non-lazy" scanner which always does a real seek operation.

Thrown if request for nonexistent column family.

This class stores the Operation status code and the exception message that occurs in case of failure of operations like put, delete, etc.

Listener class to enable callers of bulkLoadHFile() to perform any necessary pre/post processing of a given bulkload call

Row lock held by a given thread.

Implements the coprocessor environment and runtime support for coprocessors loaded within a Region.

Encapsulation of the environment of each coprocessor

Executes region merge as a "transaction".

Each enum is a step in the merge transaction.

RegionScanner describes iterators over rows in an HRegion.

Services provided by HRegionServer

A split policy determines when a region should be split.

A sink for a replication stream has to expose this service.

Defines the procedure to atomically perform multiple scans and mutations on a HRegion.

Implements the regionserver RPC services.

Immutable information for scans over a store.

The various scopes where a limit can be enforced.

Generate a new style scanner id to prevent collision with previous started server or other RSs.

ScanQueryMatcher.match(org.apache.hadoop.hbase.Cell) return codes.

Implementation of nonce manager that stores nonces in a hash map and cleans them up after some time; if nonce group/client ID is supplied, nonces are stored by client ID.

This worker is spawned in every regionserver, including master.

Split transaction journal entry

Split transaction listener

A more restricted interface for HStore.

A Store data file.

A StoreFile writer.

Describe a StoreFile (hfile, reference, link)

A chore for refreshing the store files for secondary regions hosted in the region server.

A package protected interface for a store flushing.

Scanner scans both the memstore and the Store.

Base class for cell sink that separates the provided cells into multiple files.

Configuration class for stripe store and compactions.

The state class.

Stores the minimum and maximum timestamp values (both are inclusive).

Thrown when a request contains a key which is not part of this region

Internal scanners differ from client-side scanners in that they operate on HStoreKeys and byte[] instead of RowResults.

Enum to distinguish general scan types.

A more restricted interface for HStore.

KeyValueScanner adaptor over the Reader.

Configuration class for stripe store and compactions.

Services provided by HRegionServer

HRegionServer makes a set of HRegions available to clients.

Services provided by HRegionServer

Manages the read/write consistency.

Gateway to Cluster Replication.

A source for a replication stream has to expose this service.

Internal scanners differ from client-side scanners in that they operate on HStoreKeys and byte[] instead of RowResults.

Regions store data for a certain region of a table.

RegionScanner describes iterators over rows in an HRegion.

Interface for objects that hold a column family in a Region.

This interface is used for the tracking and enforcement of Deletes during the course of a Get or Scan operation.

Internal scanners differ from client-side scanners in that they operate on HStoreKeys and byte[] instead of RowResults.

This class stores the Operation status code and the exception message that occurs in case of failure of operations like put, delete, etc.

RegionScanner describes iterators over rows in an HRegion.

Describe a StoreFile (hfile, reference, link)

HRegionServer makes a set of HRegions available to clients.

Wraps together the mutations which are applied as a batch to the region and their operation status and WALEdits.

HRegionServer makes a set of HRegions available to clients.

A "non-lazy" scanner which always does a real seek operation.

Describe a StoreFile (hfile, reference, link)

Last flushed sequence Ids for the regions and their stores on region server

Write number and whether write has completed given out at start of a write transaction.

HRegionServer makes a set of HRegions available to clients.