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Clarify change in behavior for druid.server.maxSize (#10105) 

* Clarify maxSize docs

* Add info about maxSize

Co-authored-by: Atul Mohan <atulmohan@yahoo-inc.com>
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Atul Mohan 2020-07-02 00:22:18 -05:00 committed by GitHub
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docs/configuration/index.md
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@ -1370,7 +1370,7 @@ These Historical configurations can be defined in the `historical/runtime.proper
|Property|Description|Default|
|--------|-----------|-------|
|`druid.server.maxSize`|The maximum number of bytes-worth of segments that the process wants assigned to it. This is not a limit that Historical processes actually enforces, just a value published to the Coordinator process so it can plan accordingly.|0|
|`druid.server.maxSize`|The maximum number of bytes-worth of segments that the process wants assigned to it. The Coordinator process will attempt to assign segments to a Historical process only if this property is greater than the total size of segments served by it. Since this property defines the upper limit on the total segment size that can be assigned to a Historical, it can be set to the sum of all `maxSize` values specified within `druid.segmentCache.locations` property.|0|
|`druid.server.tier`| A string to name the distribution tier that the storage process belongs to. Many of the [rules Coordinator processes use](../operations/rule-configuration.md) to manage segments can be keyed on tiers. | `_default_tier` |
|`druid.server.priority`|In a tiered architecture, the priority of the tier, thus allowing control over which processes are queried. Higher numbers mean higher priority. The default (no priority) works for architecture with no cross replication (tiers that have no data-storage overlap). Data centers typically have equal priority. | 0 |