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From ravipes...@apache.org
Subject [49/51] [abbrv] carbondata git commit: [CARBONDATA-1478] Update compaction documentation
Date Mon, 18 Sep 2017 10:02:08 GMT
[CARBONDATA-1478] Update compaction documentation

In order to easier to understand, update the description about compaction.

This closes #1357


Project: http://git-wip-us.apache.org/repos/asf/carbondata/repo
Commit: http://git-wip-us.apache.org/repos/asf/carbondata/commit/fe36e3bc
Tree: http://git-wip-us.apache.org/repos/asf/carbondata/tree/fe36e3bc
Diff: http://git-wip-us.apache.org/repos/asf/carbondata/diff/fe36e3bc

Branch: refs/heads/branch-1.2
Commit: fe36e3bc979958cf94bcefaeaa651903017ce084
Parents: c257468
Author: xubo245 <601450868@qq.com>
Authored: Wed Sep 13 20:24:40 2017 +0800
Committer: Jacky Li <jacky.likun@qq.com>
Committed: Mon Sep 18 17:10:59 2017 +0800

----------------------------------------------------------------------
 docs/data-management.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/carbondata/blob/fe36e3bc/docs/data-management.md
----------------------------------------------------------------------
diff --git a/docs/data-management.md b/docs/data-management.md
index 81866a1..b1a3eef 100644
--- a/docs/data-management.md
+++ b/docs/data-management.md
@@ -106,7 +106,7 @@ Example :
 CLEAN FILES FOR TABLE table1
 ```
 
- This DML will physically delete the segment which are "Marked for delete" immediately.
+ This DML will physically delete the segment which are "Marked for delete" and "Compacted"
immediately.
 
 ## Compacting Data
       
@@ -135,7 +135,7 @@ CLEAN FILES FOR TABLE table1
    
 | Parameter | Default | Application | Description | Valid Values |
 |-----------------------------------------|---------|-------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------|
-| carbon.compaction.level.threshold | 4, 3 | Minor | This property is for minor compaction
which decides how many segments to be merged. Example: If it is set as 2, 3 then minor compaction
will be triggered for every 2 segments. 3 is the number of level 1 compacted segment which
is further compacted to new segment. | NA |
+| carbon.compaction.level.threshold | 4, 3 | Minor | This property is for minor compaction
which decides how many segments to be merged. Example: If it is set as "2, 3", then minor
compaction will be triggered for every 2 segments in level 1. 3 is the number of level 1 compacted
segment which is further compacted to new segment in level 2. | NA |
 | carbon.major.compaction.size | 1024 MB | Major | Major compaction size can be configured
using this parameter. Sum of the segments which is below this threshold will be merged. |
NA |
 | carbon.numberof.preserve.segments | 0 | Minor/Major | This property configures number of
segments to preserve from being compacted. Example: carbon.numberof.preserve.segments=2 then
2 latest segments will always be excluded from the compaction. No segments will be preserved
by default. | 0-100 |
 | carbon.allowed.compaction.days | 0 | Minor/Major | Compaction will merge the segments which
are loaded within the specific number of days configured. Example: If the configuration is
2, then the segments which are loaded in the time frame of 2 days only will get merged. Segments
which are loaded 2 days apart will not be merged. This is disabled by default. | 0-100 |


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