Increase default timeouts [WIP] (#407)

* Increase default test timeout to 60 sec due to slow PPC CI machines

Signed-off-by: Alex Black <blacka101@gmail.com>

* Fix flaky NLP test (randomly fails due to no RNG seed set)

Signed-off-by: Alex Black <blacka101@gmail.com>

deeplearning4j/deeplearning4j-common-tests/src/main/java/org/deeplearning4j/BaseDL4JTest.java

@@ -68,7 +68,7 @@ public abstract class BaseDL4JTest {
      * Override this method to set the default timeout for methods in the test class
      */
     public long getTimeoutMilliseconds(){
-        return 30000;
+        return 60_000;
     }
 
     /**

deeplearning4j/deeplearning4j-nlp-parent/deeplearning4j-nlp/src/main/java/org/deeplearning4j/models/sequencevectors/graph/walkers/impl/NearestVertexWalker.java

@@ -70,7 +70,7 @@ public class NearestVertexWalker<V extends SequenceElement> implements GraphWalk
     public void reset(boolean shuffle) {
         position.set(0);
         if (shuffle) {
-            log.debug("Calling shuffle() on entries...");
+            log.trace("Calling shuffle() on entries...");
             // https://en.wikipedia.org/wiki/Fisher%E2%80%93Yates_shuffle#The_modern_algorithm
             for (int i = order.length - 1; i > 0; i--) {
                 int j = rng.nextInt(i + 1);

deeplearning4j/deeplearning4j-nlp-parent/deeplearning4j-nlp/src/main/java/org/deeplearning4j/models/sequencevectors/graph/walkers/impl/RandomWalker.java

@@ -249,7 +249,7 @@ public class RandomWalker<T extends SequenceElement> implements GraphWalker<T> {
     public void reset(boolean shuffle) {
         this.position.set(0);
         if (shuffle) {
-            logger.debug("Calling shuffle() on entries...");
+            logger.trace("Calling shuffle() on entries...");
             // https://en.wikipedia.org/wiki/Fisher%E2%80%93Yates_shuffle#The_modern_algorithm
             for (int i = order.length - 1; i > 0; i--) {
                 int j = rng.nextInt(i + 1);

deeplearning4j/deeplearning4j-nlp-parent/deeplearning4j-nlp/src/test/java/org/deeplearning4j/models/sequencevectors/graph/walkers/impl/RandomWalkerTest.java

@@ -123,6 +123,7 @@ public class RandomWalkerTest extends BaseDL4JTest {
     @Test
     public void testGraphTraverseRandom2() throws Exception {
         RandomWalker<VocabWord> walker = (RandomWalker<VocabWord>) new RandomWalker.Builder<>(graph)
+                .setSeed(12345)
                 .setNoEdgeHandling(NoEdgeHandling.EXCEPTION_ON_DISCONNECTED).setWalkLength(20)
                 .setWalkDirection(WalkDirection.FORWARD_UNIQUE)
                 .setNoEdgeHandling(NoEdgeHandling.CUTOFF_ON_DISCONNECTED).build();
@@ -169,6 +170,7 @@ public class RandomWalkerTest extends BaseDL4JTest {
     @Test
     public void testGraphTraverseRandom4() throws Exception {
         RandomWalker<VocabWord> walker = (RandomWalker<VocabWord>) new RandomWalker.Builder<>(graphBig)
+                .setSeed(12345)
                 .setNoEdgeHandling(NoEdgeHandling.EXCEPTION_ON_DISCONNECTED).setWalkLength(20)
                 .setWalkDirection(WalkDirection.FORWARD_UNIQUE)
                 .setNoEdgeHandling(NoEdgeHandling.CUTOFF_ON_DISCONNECTED).build();

deeplearning4j/deeplearning4j-nlp-parent/deeplearning4j-nlp/src/test/resources/logback-test.xml

@@ -0,0 +1,50 @@
+<!--~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+  ~ Copyright (c) 2015-2018 Skymind, Inc.
+  ~
+  ~ This program and the accompanying materials are made available under the
+  ~ terms of the Apache License, Version 2.0 which is available at
+  ~ https://www.apache.org/licenses/LICENSE-2.0.
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+  ~ WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+  ~ License for the specific language governing permissions and limitations
+  ~ under the License.
+  ~
+  ~ SPDX-License-Identifier: Apache-2.0
+  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~-->
+
+<configuration>
+
+    <appender name="FILE" class="ch.qos.logback.core.FileAppender">
+        <file>logs/application.log</file>
+        <encoder>
+            <pattern> %logger{15} - %message%n%xException{5}
+            </pattern>
+        </encoder>
+    </appender>
+
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern> %logger{15} - %message%n%xException{5}
+            </pattern>
+        </encoder>
+    </appender>
+
+    <logger name="org.apache.catalina.core" level="DEBUG" />
+    <logger name="org.springframework" level="DEBUG" />
+    <logger name="org.deeplearning4j" level="INFO" />
+    <logger name="org.datavec" level="INFO" />
+    <logger name="org.nd4j" level="INFO" />
+    <logger name="opennlp.uima.util" level="OFF" />
+    <logger name="org.apache.uima" level="OFF" />
+    <logger name="org.cleartk" level="OFF" />
+
+
+
+    <root level="ERROR">
+        <appender-ref ref="STDOUT" />
+        <appender-ref ref="FILE" />
+    </root>
+
+</configuration>

nd4j/nd4j-common-tests/src/main/java/org/nd4j/BaseND4JTest.java

@@ -55,7 +55,7 @@ public abstract class BaseND4JTest {
      * Override this method to set the default timeout for methods in the test class
      */
     public long getTimeoutMilliseconds(){
-        return 30000;
+        return 60_000;
     }
 
     /**