From cf8211a0057b5cc5652414eb96bb453c0e2618fa Mon Sep 17 00:00:00 2001
From: Souljoy Zhuo <zhuoshoujie@126.com>
Date: Mon, 23 Jan 2017 16:22:50 +0800
Subject: [PATCH] =?UTF-8?q?delete=20useless=20var=20=E2=80=9Cj=E2=80=9D?=
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the var “j” defined in "var j = 0" is useless for “def compress”
---
 .../src/main/scala/org/apache/spark/ml/recommendation/ALS.scala | 2 --
 1 file changed, 2 deletions(-)

diff --git a/mllib/src/main/scala/org/apache/spark/ml/recommendation/ALS.scala b/mllib/src/main/scala/org/apache/spark/ml/recommendation/ALS.scala
index 995780bf64f63..97c8655298609 100644
--- a/mllib/src/main/scala/org/apache/spark/ml/recommendation/ALS.scala
+++ b/mllib/src/main/scala/org/apache/spark/ml/recommendation/ALS.scala
@@ -1038,14 +1038,12 @@ object ALS extends DefaultParamsReadable[ALS] with Logging {
       uniqueSrcIdsBuilder += preSrcId
       var curCount = 1
       var i = 1
-      var j = 0
       while (i < sz) {
         val srcId = srcIds(i)
         if (srcId != preSrcId) {
           uniqueSrcIdsBuilder += srcId
           dstCountsBuilder += curCount
           preSrcId = srcId
-          j += 1
           curCount = 0
         }
         curCount += 1