Change jute buffer size for tests
diff --git a/modules/zookeeper/src/test/java/org/apache/ignite/spi/discovery/zk/ZookeeperDiscoverySpiTestSuite1.java b/modules/zookeeper/src/test/java/org/apache/ignite/spi/discovery/zk/ZookeeperDiscoverySpiTestSuite1.java
index 03d6a43..409a526 100644
--- a/modules/zookeeper/src/test/java/org/apache/ignite/spi/discovery/zk/ZookeeperDiscoverySpiTestSuite1.java
+++ b/modules/zookeeper/src/test/java/org/apache/ignite/spi/discovery/zk/ZookeeperDiscoverySpiTestSuite1.java
@@ -63,5 +63,6 @@
     public static void init() {
         System.setProperty("zookeeper.forceSync", "false");
         System.setProperty("zookeeper.jmx.log4j.disable", "true");
+        System.setProperty("jute.maxbuffer", String.valueOf(2 * 1024 * 1024));  // 2 MB.
     }
 }