runtime.properties

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druid.service=druid/historical
druid.plaintextPort=8083

druid.server.tier={{service_tier}}
druid.server.priority={{service_priority}}

# HTTP server threads
druid.server.http.numThreads={{num_http_connections + 10}}

# Processing threads and buffers
druid.processing.buffer.sizeBytes=500MiB
druid.processing.numMergeBuffers={{num_merge_buffers}}
druid.processing.numThreads={{num_threads}}
druid.processing.tmpDir=/mnt/disk2/var/druid/processing

# Segment storage
druid.segmentCache.locations={{segment_cache_list | safe}}
druid.segmentCache.locationSelector.strategy=mostAvailableSize
druid.segmentCache.lazyLoadOnStart=true

# How many segments to drop or load concurrently from deep storage
druid.segmentCache.numLoadingThreads={{num_segment_loading_threads}}

# Query cache
druid.historical.cache.useCache=true
druid.historical.cache.populateCache=true
druid.cache.type=caffeine
druid.cache.sizeInBytes={{cache_size}}

druid.monitoring.monitors=["org.apache.druid.java.util.metrics.JvmMonitor", "org.apache.druid.server.metrics.HistoricalMetricsMonitor", "org.apache.druid.server.metrics.QueryCountStatsMonitor"]