Module: Aerospike::QueryDuration

Defined in:

lib/aerospike/policy/query_duration.rb

Overview

Defines the expected query duration. The server treats the query in different ways depending on the expected duration. This enum is ignored for aggregation queries, background queries and server versions < 6.0.

Constant Summary

LONG =

The query is expected to return more than 100 records per node. The server optimizes for a large record set in the following ways:

Allow query to be run in multiple threads using the server’s query threading configuration. Do not relax read consistency for AP namespaces. Add the query to the server’s query monitor. Do not add the overall latency to the server’s latency histogram. Do not allow server timeouts.

0

SHORT =

The query is expected to return less than 100 records per node. The server optimizes for a small record set in the following ways: Always run the query in one thread and ignore the server’s query threading configuration. Allow query to be inlined directly on the server’s service thread. Relax read consistency for AP namespaces. Do not add the query to the server’s query monitor. Add the overall latency to the server’s latency histogram. Allow server timeouts. The default server timeout for a short query is 1 second.

1

LONG_RELAX_AP =

Treat query as a LONG query, but relax read consistency for AP namespaces. This value is treated exactly like LONG for server versions < 7.1.

2