HbaseMaster

Host name of the HBase Master server and the port number on which the Master server listens.

Specify the port number based on the

hbase.master.port

parameter configured in HBase.

Use the following format to specify a value for the

HbaseMaster

parameter:

<Master Server Host Name>:<Port>

HbaseZookeeperQuorum

Comma-separated list of ZooKeeper servers when HBase uses an ensemble of ZooKeeper servers.

For example: server1.domain.com,server3.domain.com

You can get the list of servers from the

hbase.zookeeper.quorum

property in the following file:

${HBASE_HOME}/conf/hbase-site.xml

HbaseZookeeperClientPort

Optional. Port number on which the ZooKeeper server listens for client connections. Default is 2181.

HbaseRootDirectory

Required if you use Hortonworks Data Platform. Directory that the region servers share on the local file system. Default is

${hbase.tmp.dir}/local

.

The

HbaseRootDirectory

parameter overrides the

hbase.rootdir

parameter configured in the following file:

${HBASE_HOME}/conf/hbase-site.xml

HbaseDistributed

Optional. Indicates whether the HBase runs in the standalone or distributed mode.

Set to true to indicate distributed mode and set to false to indicate standalone mode. In the standalone mode, HBase runs all the HBase and ZooKeeper daemons in a single Java virtual machine (JVM). Default is false.

The

HbaseDistributed

parameter overrides the

hbase.cluster.distributed

parameter configured in the following file:

${HBASE_HOME}/conf/hbase-site.xml

HbaseZookeeperZnodeParent

Required if you use Hortonworks Data Platform. Root ZNode path for the ZooKeeper files. HBase stores all the ZooKeeper files configured with the relative path in the root ZNode path. Default is

/hbase

.

The

HbaseZookeeperZnodeParent

parameter overrides the

zookeeper.znode.parent

parameter configured in the following file:

${HBASE_HOME}/conf/hbase-site.xml

HbaseCompressionAlgorithm

Optional. Compression algorithm that you want HBase to use. Use one of the following compression algorithms:

SNAPPY
LZO
LZ4
GZ
NONE

Default is NONE.

HbaseDataBlockEncoding

Optional. Type of data block encoding that you want HBase to use. Use one of the following data block encoding types:

PREFIX
DIFF
FAST_DIFF
NONE

Default is NONE.

ScanBatchSize

Optional. Number of records to return on each scan. Default is 100.

ScanCacheSize

Optional. Number of records to pass to scanners at once. Adjust the value of the

ScanCacheSize

parameter based on the

ScanMaxResultSize

parameter.

A lower value can result in multiple scans that might affect the performance of the jobs. A higher value can result in the failure of jobs if the size of the records exceeds the value of the

ScanMaxResultSize

parameter.

Default is 500.

ScanMaxResultSize

Optional. Maximum size of records in bytes to return to scanners at once. Adjust the value of the

ScanMaxResultSize

parameter based on the

ScanCacheSize

parameter.

A lower value can result in multiple scans and a higher value can result in increased memory usage that might affect the performance of the jobs.

Default is 2097152.

CacheBlock

Optional. Indicates whether you want to enable block cache for the scan.

Set to true to enable block cache and set to false to disable block cache. Default is false.

AutoFlush

Optional. Indicates whether you want to enable auto flush behavior.

Set to true if you want to enable auto flush and set to false if you want to disable auto flush. Default is false.

WALonPUT

Optional. Indicates whether you want to enable Write Ahead Log (WAL) edits for a put method.

Set to true to enable WAL edits for a put method and set to false to disable WAL edits for the put method. When you set to false, the region server does not write the logs to the file-based storage and your data might be at risk. Default is false.

EnableSmallScan

Optional. Indicates whether you want to enable small scan.

Set to true if you want to enable small scan and set to false if you want to disable small scan. Default is false.

RegionSplitSize

Optional. Key size to split the region. The value enables region split policy and groups records based on the prefix of the row key. Default is 8 bytes.

DriverName

Optional. Name of the HBase driver to use. The supported driver name is

com.informatica.mdmbde.database.hbase.HBaseDatabaseAdapterImplVOne

.

CoprocessorPath

Absolute path and file name for the coprocessor JAR file that you must generate and deploy in HDFS. The JAR file contains the search logic that the region servers use to perform searches.

For example,

/user/cloudera/db-hbase-coprocessorDeploy.jar

.

Use the following name format for the JAR file name:

db-hbase-coprocessor<id>

The name format uses the

id

parameter that indicates a unique identifier for the JAR file. For example, if

id=Deploy

, the JAR file name must be

db-hbase-coprocessorDeploy.jar

.

CoprocessorClass

Name of the class that the coprocessor uses. Specify

com.informatica.mdmbde.database.hbase.coprocessor.BDRMRegionObserver

as the parameter value.

SearchTokenValidity

Optional. Number of seconds that a search token remains valid. When you enable pagination, a search request returns a token with the search results. You can use the token to get the subsequent pages of the search results from cache to avoid performing the search again. The token expires after the specified time. Default is 600 seconds.

KeyTabFile

Optional. Absolute path and file name of the keytab file. A keytab file contains a list of keys that are analogous to user passwords. Applicable if you use Kerberos for authentication.

If you use the

KeyTabFile

parameter, ensure that the name of the file and the absolute path to the file are the same for all the nodes in a distributed Hadoop cluster.

PrincipalName

Required if you use Kerberos for authentication. Service Principal Name (SPN) of the HBase master server. For example, hbase/_Host@realm.com.

You can get the SPN of the HBase master server from the

hbase.master.kerberos.principal

property in the following file:

${HBASE_HOME}/conf/hbase-site.xml

<HBASEConfiguration>
   <HbaseMaster>HadoopServer:60000</HbaseMaster>
   <HbaseZookeeperClientPort>2181</HbaseZookeeperClientPort>
   <HbaseZookeeperQuorum>iir-hadoop-test1</HbaseZookeeperQuorum>
   <HbaseRootDirectory />
   <HbaseDistributed>true</HbaseDistributed>
   <HbaseZookeeperZnodeParent />
   <HbaseCompressionAlgorithm>SNAPPY</HbaseCompressionAlgorithm>
   <HbaseDataBlockEncoding>PREFIX</HbaseDataBlockEncoding>
   <ScanCacheSize>100000</ScanCacheSize>
   <ScanMaxResultSize>2097152</ScanMaxResultSize>
   <CacheBlock>false</CacheBlock>
   <AutoFlush>false</AutoFlush>
   <WALonPUT>false</WALonPUT>
   <ScanBatchSize>100</ScanBatchSize>
   <EnableSmallScan>false</EnableSmallScan>
   <RegionSplitSize>8</RegionSplitSize>
   <DriverName>com.informatica.mdmbde.database.hbase.HBaseDatabaseAdapterImplVOne</DriverName>
   <SearchTokenValidity>1000</SearchTokenValidity>
   <KeyTabFile>/etc/security/keytabs/hbase.keytab</KeyTabFile>
   <PrincipalName>hbase/_Host@realm.com</PrincipalName>
</HBASEConfiguration>