mirror of https://github.com/apache/druid.git
117 lines
3.3 KiB
Markdown
117 lines
3.3 KiB
Markdown
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---
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layout: doc_page
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---
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Broker Node Configuration
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=========================
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For general Broker Node information, see [here](Broker.html).
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Quick Start
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-----------
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Run:
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```
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io.druid.cli.Main server broker
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```
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With the following JVM configuration:
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```
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-server
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-Xmx256m
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-Duser.timezone=UTC
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-Dfile.encoding=UTF-8
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druid.host=localhost
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druid.service=broker
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druid.port=8080
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druid.zk.service.host=localhost
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```
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Production Configs
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------------------
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These production configs are using S3 as a deep store.
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JVM settings:
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```
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-server
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-Xmx#{HEAP_MAX}g
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-Xms#{HEAP_MIN}g
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-XX:NewSize=#{NEW_SIZE}g
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-XX:MaxNewSize=#{MAX_NEW_SIZE}g
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-XX:+UseConcMarkSweepGC
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-XX:+PrintGCDetails
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-XX:+PrintGCTimeStamps
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-Duser.timezone=UTC
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-Dfile.encoding=UTF-8
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-Djava.io.tmpdir=/mnt/tmp
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-Dcom.sun.management.jmxremote.port=17071
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-Dcom.sun.management.jmxremote.authenticate=false
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-Dcom.sun.management.jmxremote.ssl=false
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```
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Runtime.properties:
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```
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druid.host=#{IP_ADDR}:8080
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druid.port=8080
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druid.service=druid/prod/broker
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druid.zk.service.host=#{ZK_IPs}
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druid.zk.paths.base=/druid/prod
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druid.discovery.curator.path=/prod/discovery
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druid.broker.cache.type=memcached
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druid.broker.cache.hosts=#{MC_HOST1}:11211,#{MC_HOST2}:11211,#{MC_HOST3}:11211
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druid.broker.cache.expiration=2147483647
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druid.broker.cache.memcachedPrefix=d1
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druid.broker.http.numConnections=20
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druid.broker.http.readTimeout=PT5M
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druid.server.http.numThreads=50
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druid.request.logging.type=emitter
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druid.request.logging.feed=druid_requests
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druid.monitoring.monitors=["com.metamx.metrics.SysMonitor","com.metamx.metrics.JvmMonitor", "io.druid.client.cache.CacheMonitor"]
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# Emit metrics over http
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druid.emitter=http
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druid.emitter.http.recipientBaseUrl=#{EMITTER_URL}
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# If you choose to compress ZK announcements, you must do so for every node type
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druid.announcer.type=batch
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druid.curator.compress=true
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```
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Runtime Configuration
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---------------------
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The broker module uses several of the default modules in [Configuration](Configuration.html) and has the following set of configurations as well:
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|Property|Possible Values|Description|Default|
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|--------|---------------|-----------|-------|
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|`druid.broker.cache.type`|`local`, `memcached`|The type of cache to use for queries.|`local`|
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|`druid.broker.balancer.type`|`random`, `connectionCount`|Determines how the broker balances connections to compute nodes. `random` choose randomly, `connectionCount` picks the node with the fewest number of active connections to|`random`|
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#### Local Cache
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|Property|Description|Default|
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|--------|-----------|-------|
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|`druid.broker.cache.sizeInBytes`|Maximum size of the cache. If this is zero, cache is disabled.|0|
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|`druid.broker.cache.initialSize`|The initial size of the cache in bytes.|500000|
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|`druid.broker.cache.logEvictionCount`|If this is non-zero, there will be an eviction of entries.|0|
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#### Memcache
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|Property|Description|Default|
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|--------|-----------|-------|
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|`druid.broker.cache.expiration`|Memcache [expiration time ](https://code.google.com/p/memcached/wiki/NewCommands#Standard_Protocol).|2592000 (30 days)|
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|`druid.broker.cache.timeout`|Maximum time in milliseconds to wait for a response from Memcache.|500|
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|`druid.broker.cache.hosts`|Memcache hosts.|none|
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|`druid.broker.cache.maxObjectSize`|Maximum object size in bytes for a Memcache object.|52428800 (50 MB)|
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|`druid.broker.cache.memcachedPrefix`|Key prefix for all keys in Memcache.|druid|
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