Merge remote-tracking branch 'mysql/5.5' into 5.5

1 files changed, 42 insertions, 10 deletions

diff --git a/sql/rpl_rli.cc b/sql/rpl_rli.cc
index b01f74408a6..52e60c237dc 100644
--- a/sql/rpl_rli.cc
+++ b/sql/rpl_rli.cc
@@ -1,5 +1,5 @@
-/* Copyright (c) 2006, 2013, Oracle and/or its affiliates.
-   Copyright (c) 2011, 2013, Monty Program Ab
+/* Copyright (c) 2006, 2017, Oracle and/or its affiliates.
+   Copyright (c) 2011, 2017, MariaDB Corporation
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -42,7 +42,8 @@ Relay_log_info::Relay_log_info(bool is_slave_recovery)
    no_storage(FALSE), replicate_same_server_id(::replicate_same_server_id),
    info_fd(-1), cur_log_fd(-1), relay_log(&sync_relaylog_period),
    sync_counter(0), is_relay_log_recovery(is_slave_recovery),
-   save_temporary_tables(0), cur_log_old_open_count(0), group_relay_log_pos(0), 
+   save_temporary_tables(0), cur_log_old_open_count(0),
+   error_on_rli_init_info(false), group_relay_log_pos(0),
    event_relay_log_pos(0),
 #if HAVE_valgrind
    is_fake(FALSE),
@@ -112,7 +113,7 @@ int init_relay_log_info(Relay_log_info* rli,
 			const char* info_fname)
 {
   char fname[FN_REFLEN+128];
-  int info_fd;
+  int info_fd= -1;
   const char* msg = 0;
   int error = 0;
   DBUG_ENTER("init_relay_log_info");
@@ -122,6 +123,8 @@ int init_relay_log_info(Relay_log_info* rli,
     DBUG_RETURN(0);
   fn_format(fname, info_fname, mysql_data_home, "", 4+32);
   mysql_mutex_lock(&rli->data_lock);
+  if (rli->error_on_rli_init_info)
+    goto err;
   info_fd = rli->info_fd;
   rli->cur_log_fd = -1;
   rli->slave_skip_counter=0;
@@ -358,11 +361,14 @@ Failed to open the existing relay log info file '%s' (errno %d)",
     goto err;
   }
   rli->inited= 1;
+  rli->error_on_rli_init_info= false;
   mysql_mutex_unlock(&rli->data_lock);
   DBUG_RETURN(error);
 
 err:
-  sql_print_error("%s", msg);
+  rli->error_on_rli_init_info= true;
+  if (msg)
+    sql_print_error("%s", msg);
   end_io_cache(&rli->info_file);
   if (info_fd >= 0)
     mysql_file_close(info_fd, MYF(0));
@@ -947,6 +953,8 @@ int purge_relay_logs(Relay_log_info* rli, THD *thd, bool just_reset,
                      const char** errmsg)
 {
   int error=0;
+  const char *ln;
+  char name_buf[FN_REFLEN];
   DBUG_ENTER("purge_relay_logs");
 
   /*
@@ -973,12 +981,34 @@ int purge_relay_logs(Relay_log_info* rli, THD *thd, bool just_reset,
   if (!rli->inited)
   {
     DBUG_PRINT("info", ("rli->inited == 0"));
-    DBUG_RETURN(0);
-  }
-
-  DBUG_ASSERT(rli->slave_running == 0);
-  DBUG_ASSERT(rli->mi->slave_running == 0);
+    if (rli->error_on_rli_init_info)
+    {
+      ln= rli->relay_log.generate_name(opt_relay_logname, "-relay-bin",
+                                       1, name_buf);
 
+      if (rli->relay_log.open_index_file(opt_relaylog_index_name, ln, TRUE))
+      {
+        sql_print_error("Unable to purge relay log files. Failed to open relay "
+                        "log index file:%s.", rli->relay_log.get_index_fname());
+        DBUG_RETURN(1);
+      }
+      if (rli->relay_log.open(ln, LOG_BIN, 0, SEQ_READ_APPEND, 0,
+                             (max_relay_log_size ? max_relay_log_size :
+                              max_binlog_size), 1, TRUE))
+      {
+        sql_print_error("Unable to purge relay log files. Failed to open relay "
+                        "log file:%s.", rli->relay_log.get_log_fname());
+        DBUG_RETURN(1);
+      }
+    }
+    else
+      DBUG_RETURN(0);
+  }
+  else
+  {
+    DBUG_ASSERT(rli->slave_running == 0);
+    DBUG_ASSERT(rli->mi->slave_running == 0);
+  }
   rli->slave_skip_counter=0;
   mysql_mutex_lock(&rli->data_lock);
 
@@ -1016,6 +1046,8 @@ int purge_relay_logs(Relay_log_info* rli, THD *thd, bool just_reset,
                               rli->group_relay_log_pos,
                               0 /* do not need data lock */, errmsg, 0);
 
+  if (!rli->inited && rli->error_on_rli_init_info)
+    rli->relay_log.close(LOG_CLOSE_INDEX | LOG_CLOSE_STOP_EVENT);
 err:
 #ifndef DBUG_OFF
   char buf[22];