Skip to content
Permalink
Browse files
Docs - added another common config property to tuningConfig (#11935)
* Update ingestion-spec.md

Added indexSpecForIntermediatePersists as a common configuration property.

* Update ingestion-spec.md

Amended to remove "below" and add link to the table.

* Update ingestion-spec.md

Removed passive.
  • Loading branch information
petermarshallio committed Apr 18, 2022
1 parent 9f2b37f commit 1201c9b2e56fd39d3b5a4120360c115c2c4347fc
Showing 1 changed file with 2 additions and 1 deletion.
@@ -465,7 +465,8 @@ is:
|maxRowsInMemory|The maximum number of records to store in memory before persisting to disk. Note that this is the number of rows post-rollup, and so it may not be equal to the number of input records. Ingested records will be persisted to disk when either `maxRowsInMemory` or `maxBytesInMemory` are reached (whichever happens first).|`1000000`|
|maxBytesInMemory|The maximum aggregate size of records, in bytes, to store in the JVM heap before persisting. This is based on a rough estimate of memory usage. Ingested records will be persisted to disk when either `maxRowsInMemory` or `maxBytesInMemory` are reached (whichever happens first). `maxBytesInMemory` also includes heap usage of artifacts created from intermediary persists. This means that after every persist, the amount of `maxBytesInMemory` until next persist will decreases, and task will fail when the sum of bytes of all intermediary persisted artifacts exceeds `maxBytesInMemory`.<br /><br />Setting maxBytesInMemory to -1 disables this check, meaning Druid will rely entirely on maxRowsInMemory to control memory usage. Setting it to zero means the default value will be used (one-sixth of JVM heap size).<br /><br />Note that the estimate of memory usage is designed to be an overestimate, and can be especially high when using complex ingest-time aggregators, including sketches. If this causes your indexing workloads to persist to disk too often, you can set maxBytesInMemory to -1 and rely on maxRowsInMemory instead.|One-sixth of max JVM heap size|
|skipBytesInMemoryOverheadCheck|The calculation of maxBytesInMemory takes into account overhead objects created during ingestion and each intermediate persist. Setting this to true can exclude the bytes of these overhead objects from maxBytesInMemory check.|false|
|indexSpec|Tune how data is indexed. See below for more information.|See table below|
|indexSpec|Defines segment storage format options to use at indexing time.|See [`indexSpec`](#indexspec) for more information.|
|indexSpecForIntermediatePersists|Defines segment storage format options to use at indexing time for intermediate persisted temporary segments.|See [`indexSpec`](#indexspec) for more information.|
|Other properties|Each ingestion method has its own list of additional tuning properties. See the documentation for each method for a full list: [Kafka indexing service](../development/extensions-core/kafka-supervisor-reference.md#tuningconfig), [Kinesis indexing service](../development/extensions-core/kinesis-ingestion.md#tuningconfig), [Native batch](native-batch.md#tuningconfig), and [Hadoop-based](hadoop.md#tuningconfig).||

#### `indexSpec`

0 comments on commit 1201c9b

Please sign in to comment.