[
https://issues.apache.org/jira/browse/HBASE-15359?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15175461#comment-15175461
]
Hudson commented on HBASE-15359:
--------------------------------
FAILURE: Integrated in HBase-Trunk_matrix #750 (See
[https://builds.apache.org/job/HBase-Trunk_matrix/750/])
HBASE-15359 Simplifying segment hierarchy (stack: rev
dc449436662d8520a02628c438d0da665ab6da2e)
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MutableSegment.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/ImmutableSegmentAdapter.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/ImmutableSegment.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/SegmentFactory.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MutableCellSetSegment.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/AbstractMemStore.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MutableCellSetSegmentScanner.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/SegmentScanner.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/DefaultMemStore.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/Segment.java
> Simplifying Segment hierarchy
> -----------------------------
>
> Key: HBASE-15359
> URL: https://issues.apache.org/jira/browse/HBASE-15359
> Project: HBase
> Issue Type: Sub-task
> Reporter: Eshcar Hillel
> Assignee: Eshcar Hillel
> Fix For: 2.0.0
>
> Attachments: HBASE-14918-FIX-SEGMENT.patch, HBASE-15359-V01.patch
>
>
> Now that it is clear that no memstore segment will be implemented as an
> HFIle, and that all segments store their data in some representation of
> CellSet (skip-list or flat), the segment hierarchy can be much simplified.
> The attached patch includes only 3 classes in the hierarchy:
> Segment - comprises most of the state and implementation
> MutableSegment - extends API with add and rollback functionality
> ImmutableSegment - extends API with key-value scanner for snapshot
> SegmentScanner is the scanner for all types of segments.
> In addition, the option to rollback immutable segment in the memstore is
> disabled.
> This code would allow us to make progress independently in the compaction
> subtask (HBASE-14920) and the flat index representation subtask
> (HBASE-14921). It also means that the new immutable segment can reuse the
> existing SegmentScanner, instead of implementing a new scanner.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
