From: Haomai Wang <haomaiwang@gmail.com>
Date: Tue, 13 Jan 2015 15:26:10 +0000 (+0800)
Subject: test_msgr: Add SyntheticInjectTest
X-Git-Tag: v0.93~247^2~7
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=c65df9b5ffa8a8380de92667dd550350f632592a;p=ceph.git

test_msgr: Add SyntheticInjectTest

Signed-off-by: Haomai Wang <haomaiwang@gmail.com>
---

diff --git a/src/test/msgr/test_msgr.cc b/src/test/msgr/test_msgr.cc
index 5df34f3790e2..d17226367f61 100644
--- a/src/test/msgr/test_msgr.cc
+++ b/src/test/msgr/test_msgr.cc
@@ -750,7 +750,7 @@ class SyntheticWorkload {
  public:
   static const unsigned max_in_flight = 512;
   static const unsigned max_connections = 128;
-  static const unsigned max_messege_len = 1024 * 1024 * 4;
+  static const unsigned max_message_len = 1024 * 1024 * 4;
 
   SyntheticWorkload(int servers, int clients, string type, int random_num):
       lock("SyntheticWorkload::lock"), cli_dispatcher(false), srv_dispatcher(true),
@@ -768,7 +768,7 @@ class SyntheticWorkload {
       msgr->add_dispatcher_head(&srv_dispatcher);
 
       assert(msgr);
-      msgr->set_default_policy(Messenger::Policy::stateless_server(0, 0));
+      msgr->set_default_policy(Messenger::Policy::stateful_server(0, 0));
       available_servers.insert(msgr);
       msgr->start();
     }
@@ -783,19 +783,16 @@ class SyntheticWorkload {
       msgr->start();
     }
 
-    static const char alphanum[] = "0123456789"
-      "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-      "abcdefghijklmnopqrstuvwxyz";
-
     for (int i = 0; i < random_num; i++) {
       bufferlist bl;
-      boost::uniform_int<> u(1, max_messege_len);
+      boost::uniform_int<> u(32, max_message_len);
       uint64_t value_len = u(rng);
       bufferptr bp(value_len);
-      for (uint64_t j = 0; j < value_len; j++)
-        bp[j] = alphanum[rand() % (sizeof(alphanum) - 1)];
+      for (uint64_t j = 0; j < value_len; ) {
+        memcpy(bp.c_str()+j, &i, sizeof(i));
+        j += 4096;
+      }
 
-      bp[value_len - 1] = '\0';
       bl.append(bp);
       rand_data.push_back(bl);
     }
@@ -875,8 +872,12 @@ class SyntheticWorkload {
   }
 
   void wait_for_done() {
-    while (cli_dispatcher.get_pending())
-      usleep(500);
+    uint64_t i = 0;
+    while (cli_dispatcher.get_pending()) {
+      usleep(1000*100);
+      if (i++ % 50 == 0)
+        print_internal_state();
+    }
     for (set<Messenger*>::iterator it = available_servers.begin();
          it != available_servers.end(); ++it) {
       (*it)->shutdown();
@@ -890,7 +891,7 @@ class SyntheticWorkload {
   }
 };
 
-TEST_P(MessengerTest, SyntheticTest) {
+TEST_P(MessengerTest, SyntheticStressTest) {
   SyntheticWorkload test_msg(32, 128, GetParam(), 100);
   for (int i = 0; i < 100; ++i) {
     if (!(i % 10)) cerr << "seeding connection " << i << std::endl;
@@ -918,6 +919,38 @@ TEST_P(MessengerTest, SyntheticTest) {
 }
 
 
+TEST_P(MessengerTest, SyntheticInjectTest) {
+  g_ceph_context->_conf->set_val("ms_inject_socket_failures", "10");
+  g_ceph_context->_conf->set_val("ms_inject_internal_delays", "0.1");
+  SyntheticWorkload test_msg(4, 16, GetParam(), 100);
+  for (int i = 0; i < 100; ++i) {
+    if (!(i % 10)) cerr << "seeding connection " << i << std::endl;
+    test_msg.generate_connection();
+  }
+  gen_type rng(time(NULL));
+  for (int i = 0; i < 1000; ++i) {
+    if (!(i % 10)) {
+      cerr << "Op " << i << ": ";
+      test_msg.print_internal_state();
+    }
+    boost::uniform_int<> true_false(0, 99);
+    int val = true_false(rng);
+    if (val > 85) {
+      test_msg.generate_connection();
+    } else if (val > 70) {
+      test_msg.drop_connection();
+    } else if (val > 10) {
+      test_msg.send_message();
+    } else {
+      usleep(rand() % 500 + 100);
+    }
+  }
+  test_msg.wait_for_done();
+  g_ceph_context->_conf->set_val("ms_inject_socket_failures", "0");
+  g_ceph_context->_conf->set_val("ms_inject_internal_delays", "0");
+}
+
+
 class MarkdownDispatcher : public Dispatcher {
   Mutex lock;
   set<Connection*> conns;
@@ -1029,7 +1062,7 @@ TEST_P(MessengerTest, MarkdownTest) {
     }
     last = srv_dispatcher.count.read();
     if (equal_count)
-      sleep(0.5);
+      usleep(1000*500);
     ASSERT_FALSE(equal && equal_count > 3);
   }
   server_msgr->shutdown();