(If the maxDataSize attribute is set to auto_high_volume in indexes.conf on a 64-bit operating system, what is the maximum hot bucket size?)

Question

Options

• A4 GB
• B750 MB
• C10 GB
• D1 GB

• A
  2% (1)
• B
  2% (1)
• C
  91% (41)
• D
  4% (2)

Explanation

According to the indexes.conf reference in Splunk Enterprise, the parameter maxDataSize controls the maximum size (in GB or MB) of a single hot bucket before Splunk rolls it to a warm bucket. When the value is set to auto_high_volume on a 64-bit system, Splunk automatically sets the maximum hot bucket size to 10 GB. The "auto" settings allow Splunk to choose optimized values based on the system architecture: auto: Default hot bucket size of 750 MB (32-bit) or 10 GB (64-bit). auto_high_volume: Specifically tuned for high-ingest indexes; on 64-bit systems, this equals 10 GB auto_low_volume: Uses smaller bucket sizes for lightweight indexes. The purpose of larger hot bucket sizes on 64-bit systems is to improve indexing performance and reduce the overhead of frequent bucket rolling during heavy data ingestion. The documentation explicitly warns that these sizes differ on 32-bit systems due to memory addressing limitations. Thus, for high-throughput environments running 64-bit operating systems, auto_high_volume = 10 GB is the correct and Splunk-documented configuration. - indexes.conf - maxDataSize Attribute Reference - Managing Index Buckets and Data Retention - Splunk Enterprise Admin Manual - Indexer Storage Configuration - Splunk Performance Tuning: Bucket Management and Hot/Warm Transitions

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