[hbase] branch branch-2.2 updated: HBASE-22610 [BucketCache] Rename hbase.offheapcache.minblocksize

[reidchan]

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reidchan pushed a commit to branch branch-2.2
in repository https://gitbox.apache.org/repos/asf/hbase.git


The following commit(s) were added to refs/heads/branch-2.2 by this push:
     new 87b0040  HBASE-22610 [BucketCache] Rename 
hbase.offheapcache.minblocksize
87b0040 is described below

commit 87b00408c133f75bcf8ab97834d27a879e46b54a
Author: syedmurtazahassan <syedmurtazaha...@gmail.com>
AuthorDate: Tue Jul 23 10:55:09 2019 +0800

    HBASE-22610 [BucketCache] Rename hbase.offheapcache.minblocksize
    
    Co-authored-by: Reid Chan <reidc...@apache.org>
    Signed-off-by: Reid Chan <reidc...@apache.org>
---
 .../hadoop/hbase/io/hfile/BlockCacheFactory.java   | 24 +++++++++++++++++++---
 1 file changed, 21 insertions(+), 3 deletions(-)

diff --git 
a/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.java
 
b/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.java
index 98b3c4f..01fb130 100644
--- 
a/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.java
+++ 
b/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/BlockCacheFactory.java
@@ -71,20 +71,38 @@ public final class BlockCacheFactory {
   /**
    * The target block size used by blockcache instances. Defaults to
    * {@link HConstants#DEFAULT_BLOCKSIZE}.
-   * TODO: this config point is completely wrong, as it's used to determine the
-   * target block size of BlockCache instances. Rename.
    */
-  public static final String BLOCKCACHE_BLOCKSIZE_KEY = 
"hbase.offheapcache.minblocksize";
+  public static final String BLOCKCACHE_BLOCKSIZE_KEY = 
"hbase.blockcache.minblocksize";
 
   private static final String EXTERNAL_BLOCKCACHE_KEY = 
"hbase.blockcache.use.external";
   private static final boolean EXTERNAL_BLOCKCACHE_DEFAULT = false;
 
   private static final String EXTERNAL_BLOCKCACHE_CLASS_KEY = 
"hbase.blockcache.external.class";
 
+  /**
+   * @deprecated use {@link BlockCacheFactory#BLOCKCACHE_BLOCKSIZE_KEY} 
instead.
+   */
+  @Deprecated
+  static final String DEPRECATED_BLOCKCACHE_BLOCKSIZE_KEY = 
"hbase.offheapcache.minblocksize";
+
+  /**
+   * The config point hbase.offheapcache.minblocksize is completely wrong, 
which is replaced by
+   * {@link BlockCacheFactory#BLOCKCACHE_BLOCKSIZE_KEY}. Keep the old config 
key here for backward
+   * compatibility.
+   */
+  static {
+    Configuration.addDeprecation(DEPRECATED_BLOCKCACHE_BLOCKSIZE_KEY, 
BLOCKCACHE_BLOCKSIZE_KEY);
+  }
+
   private BlockCacheFactory() {
   }
 
   public static BlockCache createBlockCache(Configuration conf) {
+    if (conf.get(DEPRECATED_BLOCKCACHE_BLOCKSIZE_KEY) != null) {
+      LOG.warn("The config key {} is deprecated now, instead please use {}. In 
future release "
+          + "we will remove the deprecated config.", 
DEPRECATED_BLOCKCACHE_BLOCKSIZE_KEY,
+        BLOCKCACHE_BLOCKSIZE_KEY);
+    }
     LruBlockCache onHeapCache = createOnHeapCache(conf);
     if (onHeapCache == null) {
       return null;