add the note for the available customized compression codec

oap-project · Feb 5, 2021 · ea31bc7 · ea31bc7
1 parent 0fff173
commit ea31bc7
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/core/src/main/scala/com/intel/oap/ColumnarPluginConfig.scala b/core/src/main/scala/com/intel/oap/ColumnarPluginConfig.scala
@@ -66,6 +66,8 @@ class ColumnarPluginConfig(conf: SQLConf) {
   // and the cached buffers will be spilled when reach maximum memory.
   val columnarShufflePreferSpill: Boolean =
     conf.getConfString("spark.oap.sql.columnar.shuffle.preferSpill", "true").toBoolean
+
+  // The supported customized compression codec is lz4 and fastpfor.
   val columnarShuffleUseCustomizedCompressionCodec: String =
     conf.getConfString("spark.oap.sql.columnar.shuffle.customizedCompression.codec", "lz4")
   val isTesting: Boolean =