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Some of the important properties of the queryengine.properties file, needed for cluster deployment are listed here.

Property NameDescriptionSyntax/ExampleDefault Value

QUERY_ENGINE_LISTENER_PORT

The port at which the query engine will listen.

[int]

45440

ZOOKEEPER_HOSTS

Comma-separated ZooKeeper hosts and optionally their port numbers.

[host:port,host:port,host:port]

localhost: 2181

CLUSTER_NAME

The name of the ZooKeeper node used for creating a namespace for different users.

[unique_user_name]

Default_Cluster

LOG

The log file directory. The log filename is intera.log.

[path] (string)

../logs

LOG_LEVEL

The debug level for logging indicates the level of criticality to be logged.

[TRACE,DEBUG,INFO,WARN,ERROR,FATAL] (string)

ERROR

CUBOID_REPLICATION_QUEUE_SIZE

The maximum number of cuboid replication requests that can be concurrently served.

[Queue size] (int)

1000

CUBOID_REPLICATION_THREADS

The maximum number of cuboid replication threads that can be concurrently executed.

[No. of threads] (int)

5

QUERY_ENGINE_HEALTH_PUBLISHER_INTERVAL

The time interval at which the Query engine’s health is published to the ZooKeeper server.

[time in milliseconds] (int)

60000

QE_LOCAL_CACHE_PATH

The location where cube data is locally copied.

[Directory Path] (string)


PARALLEL_READS_PER_QUERY

The number of concurrent cuboid reader threads.

[Max Number of Cuboids to be read concurrently] (int)

5

MOLAP_CUBE_CACHE_SIZE

The maximum number of MOLAP cubes that can be kept in memory.

[Max Number of MOLAP cubes] (int)

10

CUBOID_PURGE_FREQUENCY

The file system purge frequency, that is, the interval after which the purge thread execution for cuboids is repeated (specified in minutes).

[>0] (int)

30

CUBE_DATA_CACHE_LIMIT

The amount of memory specified in the percentage of maximum memory assigned to the BI Server process for caching cube data.

[An integer value between 0 to 80] (int)

50



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