HBASE-1899 Use scanner caching in shell count

git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@823712 13f79535-47bb-0310-9956-ffa450edef68
2009-10-09 21:55:44 +00:00 · 2009-10-09 21:55:44 +00:00 · 400aa9a809
parent 5a934ef6e7
commit 400aa9a809
2 changed files with 3 additions and 0 deletions
--- a/CHANGES.txt
+++ b/CHANGES.txt
@ -104,6 +104,7 @@ Release 0.21.0 - Unreleased
   HBASE-1506  [performance] Make splits faster
   HBASE-1722  Add support for exporting HBase metrics via JMX
               (Gary Helming via Stack)
+   HBASE-1899  Use scanner caching in shell count

  OPTIMIZATIONS

--- a/bin/HBase.rb
+++ b/bin/HBase.rb
@ -545,6 +545,8 @@ module HBase
      now = Time.now
      scan = Scan.new()
      scan.setCacheBlocks(false)
+      # We can safely set scanner caching with the first key only filter
+      scan.setCaching(10)
      scan.setFilter(FirstKeyOnlyFilter.new())
      s = @table.getScanner(scan)
      count = 0