add patch folder to support PR from CS527 students

core/patch/hadoop/interception.patch

@@ -0,0 +1,55 @@
+diff --git a/hadoop-common-project/hadoop-common/pom.xml b/hadoop-common-project/hadoop-common/pom.xml
+index 8a9ba175..470126c0 100644
+--- a/hadoop-common-project/hadoop-common/pom.xml
++++ b/hadoop-common-project/hadoop-common/pom.xml
+@@ -513,6 +513,7 @@
+       <plugin>
+         <groupId>org.apache.maven.plugins</groupId>
+         <artifactId>maven-surefire-plugin</artifactId>
++        <version>3.0.0-M4</version>
+         <configuration>
+           <systemPropertyVariables>
+             <runningWithNative>${runningWithNative}</runningWithNative>
+diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java
+index aedde6b5..24df9481 100755
+--- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java
++++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java
+@@ -786,6 +786,7 @@ public class Configuration implements Iterable<Map.Entry<String,String>>,
+     // Add default resources
+     addDefaultResource("core-default.xml");
+     addDefaultResource("core-site.xml");
++    addDefaultResource("core-ctest.xml"); //CTEST
+
+     // print deprecation warning if hadoop-site.xml is found in classpath
+     ClassLoader cL = Thread.currentThread().getContextClassLoader();
+diff --git a/hadoop-common-project/hadoop-common/src/main/resources/core-ctest.xml b/hadoop-common-project/hadoop-common/src/main/resources/core-ctest.xml
+new file mode 100644
+index 00000000..d0ff3399
+--- /dev/null
++++ b/hadoop-common-project/hadoop-common/src/main/resources/core-ctest.xml
+@@ -0,0 +1,6 @@
++<?xml version="1.0"?>
++<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
++
++<configuration>
++
++</configuration>
+diff --git a/pom.xml b/pom.xml
+index 74a036e3..bedccf28 100644
+--- a/pom.xml
++++ b/pom.xml
+@@ -142,6 +142,13 @@ xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/x
+   <build>
+     <pluginManagement>
+       <plugins>
++        <plugin>
++          <groupId>org.apache.maven.plugins</groupId>
++          <artifactId>maven-surefire-plugin</artifactId>
++          <configuration>
++            <reportFormat>plain</reportFormat>
++          </configuration>
++        </plugin>
+         <plugin>
+           <groupId>org.apache.maven.plugins</groupId>
+           <artifactId>maven-dependency-plugin</artifactId>
+

core/patch/hadoop/logging.patch

@@ -0,0 +1,108 @@
+diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java
+index 24df9481..6451a97d 100755
+--- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java
++++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java
+@@ -1196,6 +1196,14 @@ public class Configuration implements Iterable<Map.Entry<String,String>>,
+                                     + MAX_SUBST + " " + expr);
+   }
+
++  private String getStackTrace() {
++    String stacktrace = " ";
++    for (StackTraceElement element : Thread.currentThread().getStackTrace()) {
++      stacktrace = stacktrace.concat(element.getClassName() + "\t");
++    }
++    return stacktrace;
++  }
++
+   String getenv(String name) {
+     return System.getenv(name);
+   }
+@@ -1220,11 +1228,14 @@ public class Configuration implements Iterable<Map.Entry<String,String>>,
+    *         or null if no such property exists.
+    */
+   public String get(String name) {
++    String ctestParam = name; //CTEST
+     String[] names = handleDeprecation(deprecationContext.get(), name);
+     String result = null;
+     for(String n : names) {
++      ctestParam = n; //CTEST
+       result = substituteVars(getProps().getProperty(n));
+     }
++    LOG.warn("[CTEST][GET-PARAM] " + ctestParam); //CTEST
+     return result;
+   }
+
+@@ -1312,11 +1323,14 @@ public class Configuration implements Iterable<Map.Entry<String,String>>,
+    *         its replacing property and null if no such property exists.
+    */
+   public String getRaw(String name) {
++    String ctestParam = name; //CTEST
+     String[] names = handleDeprecation(deprecationContext.get(), name);
+     String result = null;
+     for(String n : names) {
++      ctestParam = n; //CTEST
+       result = getProps().getProperty(n);
+     }
++    LOG.warn("[CTEST][GET-PARAM] " + ctestParam); //CTEST
+     return result;
+   }
+
+@@ -1364,6 +1378,10 @@ public class Configuration implements Iterable<Map.Entry<String,String>>,
+     set(name, value, null);
+   }
+
++  public void set(String name, String value, String source) {
++    set(name, value, source, true);
++  }
++
+   /** 
+    * Set the <code>value</code> of the <code>name</code> property. If 
+    * <code>name</code> is deprecated, it also sets the <code>value</code> to
+@@ -1376,7 +1394,7 @@ public class Configuration implements Iterable<Map.Entry<String,String>>,
+    * (For debugging).
+    * @throws IllegalArgumentException when the value or name is null.
+    */
+-  public void set(String name, String value, String source) {
++  public void set(String name, String value, String source, boolean log_enabled) {
+     Preconditions.checkArgument(
+         name != null,
+         "Property name must not be null");
+@@ -1388,6 +1406,7 @@ public class Configuration implements Iterable<Map.Entry<String,String>>,
+     if (deprecations.getDeprecatedKeyMap().isEmpty()) {
+       getProps();
+     }
++    if(log_enabled) LOG.warn("[CTEST][SET-PARAM] " + name + getStackTrace()); //CTEST
+     getOverlay().setProperty(name, value);
+     getProps().setProperty(name, value);
+     String newSource = (source == null ? "programmatically" : source);
+@@ -1398,6 +1417,7 @@ public class Configuration implements Iterable<Map.Entry<String,String>>,
+       if(altNames != null) {
+         for(String n: altNames) {
+           if(!n.equals(name)) {
++            if(log_enabled) LOG.warn("[CTEST][SET-PARAM] " + n + getStackTrace()); //CTEST
+             getOverlay().setProperty(n, value);
+             getProps().setProperty(n, value);
+             putIntoUpdatingResource(n, new String[] {newSource});
+@@ -1409,6 +1429,7 @@ public class Configuration implements Iterable<Map.Entry<String,String>>,
+       String[] names = handleDeprecation(deprecationContext.get(), name);
+       String altSource = "because " + name + " is deprecated";
+       for(String n : names) {
++        if(log_enabled) LOG.warn("[CTEST][SET-PARAM] " + n + getStackTrace()); //CTEST
+         getOverlay().setProperty(n, value);
+         getProps().setProperty(n, value);
+         putIntoUpdatingResource(n, new String[] {altSource});
+@@ -1481,11 +1502,14 @@ public class Configuration implements Iterable<Map.Entry<String,String>>,
+    *         doesn't exist.                    
+    */
+   public String get(String name, String defaultValue) {
++    String ctestParam = name; //CTEST
+     String[] names = handleDeprecation(deprecationContext.get(), name);
+     String result = null;
+     for(String n : names) {
++      ctestParam = n; //CTEST
+       result = substituteVars(getProps().getProperty(n, defaultValue));
+     }
++    LOG.warn("[CTEST][GET-PARAM] " + ctestParam); //CTEST
+     return result;
+   }
+