Bug#19047, not start the event thread when ndb_mgm is running in executing (-e) thread.

ndb/src/mgmclient/CommandInterpreter.cpp

@@ -55,11 +55,11 @@ public:
    *
    *   @return true until quit/bye/exit has been typed
    */
-  int execute(const char *_line, int _try_reconnect=-1, int *error= 0);
+  int execute(const char *_line, int _try_reconnect=-1, bool interactive=1, int *error= 0);
 
 private:
   void printError();
-  int execute_impl(const char *_line);
+  int execute_impl(const char *_line, bool interactive=1);
 
   /**
    *   Analyse the command line, after the first token.
@@ -99,7 +99,7 @@ private:
    */
   void executeHelp(char* parameters);
   void executeShow(char* parameters);
-  void executeConnect(char* parameters);
+  void executeConnect(char* parameters, bool interactive);
   void executePurge(char* parameters);
   int  executeShutdown(char* parameters);
   void executeRun(char* parameters);
@@ -137,7 +137,7 @@ public:
   void executeCpc(char * parameters);
 
 public:
-  bool connect();
+  bool connect(bool interactive);
   bool disconnect();
 
   /**
@@ -198,9 +198,9 @@ Ndb_mgmclient::~Ndb_mgmclient()
 {
   delete m_cmd;
 }
-int Ndb_mgmclient::execute(const char *_line, int _try_reconnect, int *error)
+int Ndb_mgmclient::execute(const char *_line, int _try_reconnect, bool interactive, int *error)
 {
-  return m_cmd->execute(_line,_try_reconnect,error);
+  return m_cmd->execute(_line,_try_reconnect,interactive, error);
 }
 int
 Ndb_mgmclient::disconnect()
@@ -246,7 +246,7 @@ extern "C" {
 #include <util/InputStream.hpp>
 #include <util/OutputStream.hpp>
 
-int Ndb_mgmclient::execute(int argc, char** argv, int _try_reconnect, int *error)
+int Ndb_mgmclient::execute(int argc, char** argv, int _try_reconnect, bool interactive, int *error)
 {
   if (argc <= 0)
     return 0;
@@ -255,7 +255,7 @@ int Ndb_mgmclient::execute(int argc, char** argv, int _try_reconnect, int *error
   {
     _line.appfmt(" %s", argv[i]);
   }
-  return m_cmd->execute(_line.c_str(),_try_reconnect, error);
+  return m_cmd->execute(_line.c_str(),_try_reconnect, interactive, error);
 }
 
 /*****************************************************************************
@@ -400,7 +400,7 @@ CommandInterpreter::CommandInterpreter(const char *_host,int verbose)
 {
   m_constr= _host;
   m_connected= false;
-  m_event_thread= 0;
+  m_event_thread= NULL;
   try_reconnect = 0;
   m_print_mutex= NdbMutex_Create();
 #ifdef HAVE_GLOBAL_REPLICATION
@@ -495,7 +495,7 @@ event_thread_run(void* p)
 }
 
 bool
-CommandInterpreter::connect()
+CommandInterpreter::connect(bool interactive)
 {
   DBUG_ENTER("CommandInterpreter::connect");
 
@@ -507,10 +507,12 @@ CommandInterpreter::connect()
     ndbout_c("Cannot create handle to management server.");
     exit(-1);
   }
-  m_mgmsrv2 = ndb_mgm_create_handle();
-  if(m_mgmsrv2 == NULL) {
-    ndbout_c("Cannot create 2:nd handle to management server.");
-    exit(-1);
+  if (interactive) {
+    m_mgmsrv2 = ndb_mgm_create_handle();
+    if(m_mgmsrv2 == NULL) {
+      ndbout_c("Cannot create 2:nd handle to management server.");
+      exit(-1);
+    }
   }
 
   if (ndb_mgm_set_connectstring(m_mgmsrv, m_constr))
@@ -524,62 +526,64 @@ CommandInterpreter::connect()
 
   const char *host= ndb_mgm_get_connected_host(m_mgmsrv);
   unsigned port= ndb_mgm_get_connected_port(m_mgmsrv);
-  BaseString constr;
-  constr.assfmt("%s:%d",host,port);
-  if(!ndb_mgm_set_connectstring(m_mgmsrv2, constr.c_str()) &&
-     !ndb_mgm_connect(m_mgmsrv2, try_reconnect-1, 5, 1))
-  {
-    DBUG_PRINT("info",("2:ndb connected to Management Server ok at: %s:%d",
-                       host, port));
-    assert(m_event_thread == 0);
-    assert(do_event_thread == 0);
-    do_event_thread= 0;
-    struct event_thread_param p;
-    p.m= &m_mgmsrv2;
-    p.p= &m_print_mutex;
-    m_event_thread = NdbThread_Create(event_thread_run,
-                                      (void**)&p,
-                                      32768,
-                                      "CommandInterpreted_event_thread",
-                                      NDB_THREAD_PRIO_LOW);
-    if (m_event_thread != 0)
+  if (interactive) {
+    BaseString constr;
+    constr.assfmt("%s:%d",host,port);
+    if(!ndb_mgm_set_connectstring(m_mgmsrv2, constr.c_str()) &&
+       !ndb_mgm_connect(m_mgmsrv2, try_reconnect-1, 5, 1))
     {
-      DBUG_PRINT("info",("Thread created ok, waiting for started..."));
-      int iter= 1000; // try for 30 seconds
-      while(do_event_thread == 0 &&
-            iter-- > 0)
-        NdbSleep_MilliSleep(30);
-    }
-    if (m_event_thread == 0 ||
-        do_event_thread == 0 ||
-        do_event_thread == -1)
-    {
-      DBUG_PRINT("info",("Warning, event thread startup failed, "
-                         "degraded printouts as result, errno=%d",
-                         errno));
-      printf("Warning, event thread startup failed, "
-             "degraded printouts as result, errno=%d\n", errno);
+      DBUG_PRINT("info",("2:ndb connected to Management Server ok at: %s:%d",
+                         host, port));
+      assert(m_event_thread == NULL);
+      assert(do_event_thread == 0);
       do_event_thread= 0;
+      struct event_thread_param p;
+      p.m= &m_mgmsrv2;
+      p.p= &m_print_mutex;
+      m_event_thread = NdbThread_Create(event_thread_run,
+                                        (void**)&p,
+                                        32768,
+                                        "CommandInterpreted_event_thread",
+                                        NDB_THREAD_PRIO_LOW);
       if (m_event_thread)
       {
-        void *res;
-        NdbThread_WaitFor(m_event_thread, &res);
-        NdbThread_Destroy(&m_event_thread);
+        DBUG_PRINT("info",("Thread created ok, waiting for started..."));
+        int iter= 1000; // try for 30 seconds
+        while(do_event_thread == 0 &&
+              iter-- > 0)
+          NdbSleep_MilliSleep(30);
+      }
+      if (m_event_thread == NULL ||
+          do_event_thread == 0 ||
+          do_event_thread == -1)
+      {
+        DBUG_PRINT("info",("Warning, event thread startup failed, "
+                           "degraded printouts as result, errno=%d",
+                           errno));
+        printf("Warning, event thread startup failed, "
+               "degraded printouts as result, errno=%d\n", errno);
+        do_event_thread= 0;
+        if (m_event_thread)
+        {
+          void *res;
+          NdbThread_WaitFor(m_event_thread, &res);
+          NdbThread_Destroy(&m_event_thread);
+        }
+        ndb_mgm_disconnect(m_mgmsrv2);
       }
-      ndb_mgm_disconnect(m_mgmsrv2);
     }
-  }
-  else
-  {
-    DBUG_PRINT("warning",
-               ("Could not do 2:nd connect to mgmtserver for event listening"));
-    DBUG_PRINT("info", ("code: %d, msg: %s",
-                        ndb_mgm_get_latest_error(m_mgmsrv2),
-                        ndb_mgm_get_latest_error_msg(m_mgmsrv2)));
-    printf("Warning, event connect failed, degraded printouts as result\n");
-    printf("code: %d, msg: %s\n",
-           ndb_mgm_get_latest_error(m_mgmsrv2),
-           ndb_mgm_get_latest_error_msg(m_mgmsrv2));
+    else
+    {
+      DBUG_PRINT("warning",
+                 ("Could not do 2:nd connect to mgmtserver for event listening"));
+      DBUG_PRINT("info", ("code: %d, msg: %s",
+                          ndb_mgm_get_latest_error(m_mgmsrv2),
+                          ndb_mgm_get_latest_error_msg(m_mgmsrv2)));
+      printf("Warning, event connect failed, degraded printouts as result\n");
+      printf("code: %d, msg: %s\n",
+             ndb_mgm_get_latest_error(m_mgmsrv2),
+             ndb_mgm_get_latest_error_msg(m_mgmsrv2));
+    }
   }
   m_connected= true;
   DBUG_PRINT("info",("Connected to Management Server at: %s:%d", host, port));
@@ -602,7 +606,7 @@ CommandInterpreter::disconnect()
     do_event_thread= 0;
     NdbThread_WaitFor(m_event_thread, &res);
     NdbThread_Destroy(&m_event_thread);
-    m_event_thread= 0;
+    m_event_thread= NULL;
     ndb_mgm_destroy_handle(&m_mgmsrv2);
   }
   if (m_connected)
@@ -618,11 +622,11 @@ CommandInterpreter::disconnect()
 
 int 
 CommandInterpreter::execute(const char *_line, int _try_reconnect,
-			    int *error) 
+			    bool interactive, int *error) 
 {
   if (_try_reconnect >= 0)
     try_reconnect=_try_reconnect;
-  int result= execute_impl(_line);
+  int result= execute_impl(_line, interactive);
   if (error)
     *error= m_error;
 
@@ -637,7 +641,7 @@ invalid_command(const char *cmd)
 }
 
 int 
-CommandInterpreter::execute_impl(const char *_line) 
+CommandInterpreter::execute_impl(const char *_line, bool interactive) 
 {
   DBUG_ENTER("CommandInterpreter::execute_impl");
   DBUG_PRINT("enter",("line=\"%s\"",_line));
@@ -686,7 +690,7 @@ CommandInterpreter::execute_impl(const char *_line)
     DBUG_RETURN(true);
   }
   else if (strcasecmp(firstToken, "CONNECT") == 0) {
-    executeConnect(allAfterFirstToken);
+    executeConnect(allAfterFirstToken, interactive);
     DBUG_RETURN(true);
   }
   else if (strcasecmp(firstToken, "SLEEP") == 0) {
@@ -701,7 +705,7 @@ CommandInterpreter::execute_impl(const char *_line)
     DBUG_RETURN(false);
   }
 
-  if (!connect())
+  if (!connect(interactive))
     DBUG_RETURN(true);
 
   if (strcasecmp(firstToken, "SHOW") == 0) {
@@ -1312,13 +1316,13 @@ CommandInterpreter::executeShow(char* parameters)
 }
 
 void
-CommandInterpreter::executeConnect(char* parameters) 
+CommandInterpreter::executeConnect(char* parameters, bool interactive) 
 {
   disconnect();
   if (!emptyString(parameters)) {
     m_constr= BaseString(parameters).trim().c_str();
   }
-  connect();
+  connect(interactive);
 }
 
 //*****************************************************************************

ndb/src/mgmclient/main.cpp

@@ -121,7 +121,7 @@ read_and_execute(int _try_reconnect)
     line_read= strdup(linebuffer);
   }
 #endif
-  return com->execute(line_read,_try_reconnect);
+  return com->execute(line_read, _try_reconnect, 1);
 }
 
 int main(int argc, char** argv){
@@ -163,7 +163,7 @@ int main(int argc, char** argv){
   }
   else
   {
-    com->execute(opt_execute_str,_try_reconnect, &ret);
+    com->execute(opt_execute_str,_try_reconnect, 0, &ret);
   }
   delete com;
 

ndb/src/mgmclient/ndb_mgmclient.hpp

@@ -23,8 +23,8 @@ class Ndb_mgmclient
 public:
   Ndb_mgmclient(const char*,int verbose=0);
   ~Ndb_mgmclient();
-  int execute(const char *_line, int _try_reconnect=-1, int *error= 0);
-  int execute(int argc, char** argv, int _try_reconnect=-1, int *error= 0);
+  int execute(const char *_line, int _try_reconnect=-1, bool interactive=1, int *error= 0);
+  int execute(int argc, char** argv, int _try_reconnect=-1, bool interactive=1, int *error= 0);
   int disconnect();
 private:
   CommandInterpreter *m_cmd;