diff --git a/network/common/src/main/java/org/apache/spark/network/util/TransportConf.java b/network/common/src/main/java/org/apache/spark/network/util/TransportConf.java
index f60573998f7aed017a331186b487ff4676cb2e61..13b37f96f8ce25b4f51328a56e16830c7c461b62 100644
--- a/network/common/src/main/java/org/apache/spark/network/util/TransportConf.java
+++ b/network/common/src/main/java/org/apache/spark/network/util/TransportConf.java
@@ -35,14 +35,14 @@ public class TransportConf {
     return conf.getBoolean("spark.shuffle.io.preferDirectBufs", true);
   }
 
-  /** Connect timeout in secs. Default 120 secs. */
+  /** Connect timeout in milliseconds. Default 120 secs. */
   public int connectionTimeoutMs() {
     return conf.getInt("spark.shuffle.io.connectionTimeout", 120) * 1000;
   }
 
   /** Number of concurrent connections between two nodes for fetching data. **/
   public int numConnectionsPerPeer() {
-    return conf.getInt("spark.shuffle.io.numConnectionsPerPeer", 2);
+    return conf.getInt("spark.shuffle.io.numConnectionsPerPeer", 1);
   }
 
   /** Requested maximum length of the queue of incoming connections. Default -1 for no backlog. */
@@ -67,7 +67,7 @@ public class TransportConf {
   public int sendBuf() { return conf.getInt("spark.shuffle.io.sendBuffer", -1); }
 
   /** Timeout for a single round trip of SASL token exchange, in milliseconds. */
-  public int saslRTTimeout() { return conf.getInt("spark.shuffle.sasl.timeout", 30000); }
+  public int saslRTTimeoutMs() { return conf.getInt("spark.shuffle.sasl.timeout", 30) * 1000; }
 
   /**
    * Max number of times we will try IO exceptions (such as connection timeouts) per request.
@@ -79,7 +79,7 @@ public class TransportConf {
    * Time (in milliseconds) that we will wait in order to perform a retry after an IOException.
    * Only relevant if maxIORetries > 0.
    */
-  public int ioRetryWaitTime() { return conf.getInt("spark.shuffle.io.retryWaitMs", 5000); }
+  public int ioRetryWaitTimeMs() { return conf.getInt("spark.shuffle.io.retryWait", 5) * 1000; }
 
   /**
    * Minimum size of a block that we should start using memory map rather than reading in through
diff --git a/network/shuffle/src/main/java/org/apache/spark/network/sasl/SaslClientBootstrap.java b/network/shuffle/src/main/java/org/apache/spark/network/sasl/SaslClientBootstrap.java
index 7bc91e375371fba3780c72e5d3acfb3a791fb1e7..33aa1344345ff5ab24279d92fed0eceb184debbb 100644
--- a/network/shuffle/src/main/java/org/apache/spark/network/sasl/SaslClientBootstrap.java
+++ b/network/shuffle/src/main/java/org/apache/spark/network/sasl/SaslClientBootstrap.java
@@ -59,7 +59,7 @@ public class SaslClientBootstrap implements TransportClientBootstrap {
         ByteBuf buf = Unpooled.buffer(msg.encodedLength());
         msg.encode(buf);
 
-        byte[] response = client.sendRpcSync(buf.array(), conf.saslRTTimeout());
+        byte[] response = client.sendRpcSync(buf.array(), conf.saslRTTimeoutMs());
         payload = saslClient.response(response);
       }
     } finally {
diff --git a/network/shuffle/src/main/java/org/apache/spark/network/shuffle/RetryingBlockFetcher.java b/network/shuffle/src/main/java/org/apache/spark/network/shuffle/RetryingBlockFetcher.java
index f8a1a266863bbfe57005ee5374a2aecfdd7cdd22..4bb0498e5d5aa578183f69e070acebe5a6079093 100644
--- a/network/shuffle/src/main/java/org/apache/spark/network/shuffle/RetryingBlockFetcher.java
+++ b/network/shuffle/src/main/java/org/apache/spark/network/shuffle/RetryingBlockFetcher.java
@@ -106,7 +106,7 @@ public class RetryingBlockFetcher {
     this.fetchStarter = fetchStarter;
     this.listener = listener;
     this.maxRetries = conf.maxIORetries();
-    this.retryWaitTime = conf.ioRetryWaitTime();
+    this.retryWaitTime = conf.ioRetryWaitTimeMs();
     this.outstandingBlocksIds = Sets.newLinkedHashSet();
     Collections.addAll(outstandingBlocksIds, blockIds);
     this.currentListener = new RetryingBlockFetchListener();