Package com.palantir.atlasdb.spi

Class DerivedSnapshotConfig

java.lang.Object
com.palantir.atlasdb.spi.DerivedSnapshotConfig
@Immutable public abstract class DerivedSnapshotConfig extends Object
Cassandra derives the default concurrentGetRangesThreadPoolSize from the pool size and the number of thrift hosts. The pool size is configured in com.palantir.atlasdb.cassandra.CassandraKeyValueServiceConfig, whereas the initial server list is now present in com.palantir.atlasdb.cassandra.CassandraKeyValueServiceRuntimeConfig, and thus the derivation requires information from both configs. This immutable represents the minimal set of properties where the values may be derived from different configs, to avoid library consumers from depending on the idea of a totally merged config (which may exist separately, e.g for the purpose of moving config keys from install to runtime config) Despite being derived from the runtime config, derived values will not be live reloaded. See AtlasDbFactory for information on how this is constructed for the various KVSs.

  • Constructor Details

    • DerivedSnapshotConfig

      public DerivedSnapshotConfig()

  • Method Details

    • concurrentGetRangesThreadPoolSize

      public abstract int concurrentGetRangesThreadPoolSize()
      The size of the thread pool used for concurrently running range requests.

    • defaultGetRangesConcurrency

      @Derived public int defaultGetRangesConcurrency()
      The maximum number of threads from the pool of concurrentGetRangesThreadPoolSize() to use for a single getRanges request when the user does not explicitly provide a value.

    • builder

      public static com.palantir.atlasdb.spi.ImmutableDerivedSnapshotConfig.Builder builder()