Server

Server configuration can be provided as part of the server startup parameters.

bin/pinot-admin.sh StartServer -configFileName /path/to/server.conf

server.conf can have the following properties

PropertyDefaultDescription

pinot.server.netty.port

8098

Port to query Pinot Server

pinot.server.netty.host

Pinot server hostname

pinot.server.adminapi.port

8097

Port for Pinot Server Admin UI

pinot.server.instance.id

By default the server instance id used by Helix is Server_hostname_port where the hostname and port are configured through host and port config values above. This config overwrites the default setting. User can put server id independent of the server's hostname and port.

pinot.server.instance.dataDir

java.io.tmpdir + /PinotServer/index

Directory to hold all the data

pinot.server.instance.consumerDir

pinot.server.instance.segmentTarDir

java.io.tmpdir + /PinotServer/segmentTar

Directory to hold temporary segments downloaded from Controller or Deep Store

pinot.server.instance.readMode

mmap

pinot.server.instance.reload.consumingSegment

true

Specifies if the reload segment API should reload the consuming segments. This is useful when the corresponding schema is updated and we want the changes to be reflected in the consuming segment.

pinot.server.instance.data.manager.class

org.apache.pinot.server. starter.helix.HelixInstanceDataManager

pinot.query.scheduler.name

fcfs

Currently only FCFS (first-come-first-serve) is supported

pinot.query.scheduler.query_runner_threads

CPU cores

Main thread to execute the queries (one thread per query)

pinot.query.scheduler.query_worker_threads

2 * CPU cores

Worker thread to process the segments (multiple threads per query)

pinot.query.scheduler.query.log.maxRatePerSecond

unlimited

Maximum queries to be logged per second. Queries with exceptions and costly queries are always logged.

pinot.server.query.executor.class

org.apache.pinot.core.query. executor.ServerQueryExecutorV1Impl

pinot.server.query.executor.pruner.class

ValidSegmentPruner,DataSchemaSegmentPruner, ColumnValueSegmentPruner,SelectionQuerySegmentPruner

pinot.server.query.executor.timeout

15000

Timeout for Server to process Query in Milliseconds

pinot.server.query.executor.max.execution.threads

-1 (unlimited)

Maximum number of execution threads allowed for a query. Limiting this can prevent a single expensive query from occupying all the execution threads.

pinot.server.query.executor.max.init.group.holder.capacity

10000

Initial capacity of the group key holder. Increasing this value can reduce the resizing of the group key holder, but increase the heap usage for small group-by queries.

pinot.server.query.executor.num.groups.limit

100000

Maximum number of groups kept from each segment during query execution. Once this limit is reached, no more groups will be taken (will still aggregate on existing groups).

pinot.server.query.executor.min.segment.group.trim.size

-1 (do not trim)

Minimum number of groups kept at segment level during query execution. If there are enough groups found in a segment, pinot will trim the groups to max(5 * LIMIT, minSegmentgroupTrimSize) groups based on the order-by clause. Increasing this value can increase the accuracy of the results, but also increase the heap usage of the group-by queries.

pinot.server.query.executor.min.server.group.trim.size

5000

Minimum number of groups kept at server level during query execution. If there are enough groups found in a server, pinot will trim the groups to max(5 * LIMIT, minServergroupTrimSize) groups based on the order-by clause. Increasing this value can increase the accuracy of the results, but also increase the heap usage and data transfer cost of the group-by queries.

pinot.server.query.executor.groupby.trim.threshold

1000000

Threshold for number of groups to trigger the server group trimming. Increasing this value can reduce the times of trimming, but also increase the heap usage of the group-by queries.

pinot.server.requestHandlerFactory.class

org.apache.pinot.server. request.SimpleRequestHandlerFactory

pinot.server.instance.segment.format.version

pinot.server.instance.enable.split.commit

pinot.server.instance.enable.commitend.metadata

pinot.server.instance.max.parallel.refresh.threads

1

Number of simultaneous segments that can be refreshed on one server.

pinot.server.instance.realtime.max.parallel.segment.builds

0

Specifies how many parallel realtime segments can be built. Value of <= 0 indicates unlimited.

pinot.server.instance.realtime.alloc.offheap

false

Boolean value to control whether memory for realtime consuming segments should be allocated off-heap.

pinot.server.instance.realtime.alloc.offheap.direct

false

If 'realtime.alloc.offheap' is set to true, this boolean value controls whether the corresponding allocation should be direct or not (false indicate mmap allocation)

pinot.server.startup.minResourcePercent

100

pinot.server.starter.realtimeConsumptionCatchupWaitMs

0

pinot.server.startup.timeoutMs

10 minutes

pinot.server.startup.enableServiceStatusCheck

true

pinot.server.startup.serviceStatusCheckIntervalMs

10 seconds

pinot.server.shutdown.timeoutMs

10 minutes

pinot.server.shutdown.enableQueryCheck

true

pinot.server.shutdown.noQueryThresholdMs

15 seconds

pinot.server.shutdown.enableResourceCheck

false

pinot.server.shutdown.resourceCheckIntervalMs

10 seconds

pinot.server.admin.access.control.factory.class

org.apache.pinot.server. api.access.AllowAllAccessFactory

pinot.server.adminapi.access.protocols

http

Ingress protocols to access server admin api (http or https or http,https)

pinot.server.adminapi.access.protocols.http.port

Port to access server admin api via http

pinot.server.adminapi.broker.protocols.https.port

Port to access server admin api via https

pinot.server.tls.keystore.path

Path to server TLS keystore

pinot.server.tls.keystore.password

keystore password

pinot.server.tls.truststore.path

Path to server TLS truststore

pinot.server.tls.truststore.password

truststore password

inot.server.tls.client.auth

false

toggle for requiring TLS client auth

pinot.server.netty.enabled

true

toggle for enabling unsecured netty connections to server

pinot.server.netty.port

Port for accessing pinot server via unsecured netty

pinot.server.nettytls.enabled

pinot.server.nettytls.port

Port for accessing pinot server via TLS-secured netty

pinot.server.http.server.thread.pool.corePoolSize

2 * cores

Config for the thread-pool used by pinot-server's http-server.

pinot.server.http.server.thread.pool.maxPoolSize

2 * cores

Config for the thread-pool used by pinot-server's http-server.

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