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add docs for background segments loading

This commit is contained in:
Xavier Léauté 2014-09-18 12:06:50 -07:00
parent 32b6135f3d
commit 815ebeee25
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docs/content/Configuration.md
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@ -155,8 +155,9 @@ Druid storage nodes maintain information about segments they have already downlo
|--------|-----------|-------|
|`druid.segmentCache.locations`|Segments assigned to a Historical node are first stored on the local file system (in a disk cache) and then served by the Historical node. These locations define where that local cache resides. | none (no caching) |
|`druid.segmentCache.deleteOnRemove`|Delete segment files from cache once a node is no longer serving a segment.|true|
|`druid.segmentCache.dropSegmentDelayMillis`|How long a node delays before completely dropping segment.|5 minutes|
|`druid.segmentCache.dropSegmentDelayMillis`|How long a node delays before completely dropping segment.|30000 (30 seconds)|
|`druid.segmentCache.infoDir`|Historical nodes keep track of the segments they are serving so that when the process is restarted they can reload the same segments without waiting for the Coordinator to reassign. This path defines where this metadata is kept. Directory will be created if needed.|${first_location}/info_dir|
|`druid.segmentCache.announceIntervalMillis`|How frequently to announce segments while segments are loading from cache. Set this value to zero to wait for all segments to be loaded before announcing|5000 (5 seconds)|
### Jetty Server Module