HADOOP-8816. HTTP Error 413 full HEAD if using kerberos authentication. (moritzmoeller via tucu)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1433568 13f79535-47bb-0310-9956-ffa450edef68

hadoop-common-project/hadoop-common/CHANGES.txt

@@ -236,6 +236,9 @@ Release 2.0.3-alpha - Unreleased
     HADOOP-9178. src/main/conf is missing hadoop-policy.xml.
     (Sandy Ryza via eli)
 
+    HADOOP-8816. HTTP Error 413 full HEAD if using kerberos authentication. 
+    (moritzmoeller via tucu)
+
 Release 2.0.2-alpha - 2012-09-07 
 
   INCOMPATIBLE CHANGES

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/http/HttpServer.java

@@ -304,6 +304,7 @@ public class HttpServer implements FilterContainer {
     ret.setAcceptQueueSize(128);
     ret.setResolveNames(false);
     ret.setUseDirectBuffers(false);
+    ret.setHeaderBufferSize(1024*64);
     return ret;
   }
 

hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/http/TestHttpServer.java

@@ -119,6 +119,18 @@ public class TestHttpServer extends HttpServerFunctionalTest {
     }    
   }
 
+  @SuppressWarnings("serial")
+  public static class LongHeaderServlet extends HttpServlet {
+    @SuppressWarnings("unchecked")
+    @Override
+    public void doGet(HttpServletRequest request,
+                      HttpServletResponse response
+    ) throws ServletException, IOException {
+      Assert.assertEquals(63 * 1024, request.getHeader("longheader").length());
+      response.setStatus(HttpServletResponse.SC_OK);
+    }
+  }
+
   @SuppressWarnings("serial")
   public static class HtmlContentServlet extends HttpServlet {
     @Override
@@ -139,6 +151,7 @@ public class TestHttpServer extends HttpServerFunctionalTest {
     server.addServlet("echo", "/echo", EchoServlet.class);
     server.addServlet("echomap", "/echomap", EchoMapServlet.class);
     server.addServlet("htmlcontent", "/htmlcontent", HtmlContentServlet.class);
+    server.addServlet("longheader", "/longheader", LongHeaderServlet.class);
     server.addJerseyResourcePackage(
         JerseyResource.class.getPackage().getName(), "/jersey/*");
     server.start();
@@ -197,6 +210,22 @@ public class TestHttpServer extends HttpServerFunctionalTest {
                  readOutput(new URL(baseUrl, "/echomap?a=b&c<=d&a=>")));
   }
 
+  /** 
+   *  Test that verifies headers can be up to 64K long. 
+   *  The test adds a 63K header leaving 1K for other headers.
+   *  This is because the header buffer setting is for ALL headers,
+   *  names and values included. */
+  @Test public void testLongHeader() throws Exception {
+    URL url = new URL(baseUrl, "/longheader");
+    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
+    StringBuilder sb = new StringBuilder();
+    for (int i = 0 ; i < 63 * 1024; i++) {
+      sb.append("a");
+    }
+    conn.setRequestProperty("longheader", sb.toString());
+    assertEquals(HttpURLConnection.HTTP_OK, conn.getResponseCode());
+  }
+
   @Test public void testContentTypes() throws Exception {
     // Static CSS files should have text/css
     URL cssUrl = new URL(baseUrl, "/static/test.css");