merge spider-3.2.37

storage/spider/ha_spider.h

-/* Copyright (C) 2008-2014 Kentoku Shiba
+/* Copyright (C) 2008-2015 Kentoku Shiba
 
   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
@@ -738,6 +738,7 @@ public:
   void set_ft_discard_bitmap();
   void set_searched_bitmap();
   void set_clone_searched_bitmap();
+  void set_searched_bitmap_from_item_list();
   void set_select_column_mode();
 #ifdef WITH_PARTITION_STORAGE_ENGINE
   void check_select_column(bool rnd);

storage/spider/spd_conn.cc

-/* Copyright (C) 2008-2014 Kentoku Shiba
+/* Copyright (C) 2008-2015 Kentoku Shiba
 
   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
@@ -662,6 +662,7 @@ SPIDER_CONN *spider_create_conn(
 
   spider_conn_queue_connect(share, conn, link_idx);
   conn->ping_time = (time_t) time((time_t*) 0);
+  conn->connect_error_time = conn->ping_time;
   pthread_mutex_lock(&spider_conn_id_mutex);
   conn->conn_id = spider_conn_id;
   ++spider_conn_id;
@@ -1085,6 +1086,17 @@ SPIDER_CONN *spider_get_conn(
   }
   conn->link_idx = base_link_idx;
 
+  if (conn->queued_connect)
+    spider_conn_queue_connect_rewrite(share, conn, link_idx);
+
+  if (conn->queued_ping)
+  {
+    if (spider)
+      spider_conn_queue_ping_rewrite(spider, conn, base_link_idx);
+    else
+      conn->queued_ping = FALSE;
+  }
+
   DBUG_PRINT("info",("spider conn=%p", conn));
   DBUG_RETURN(conn);
 
@@ -1195,8 +1207,10 @@ void spider_conn_queue_connect(
   DBUG_ENTER("spider_conn_queue_connect");
   DBUG_PRINT("info", ("spider conn=%p", conn));
   conn->queued_connect = TRUE;
+/*
   conn->queued_connect_share = share;
   conn->queued_connect_link_idx = link_idx;
+*/
   DBUG_VOID_RETURN;
 }
 
@@ -1225,6 +1239,18 @@ void spider_conn_queue_ping(
   DBUG_VOID_RETURN;
 }
 
+void spider_conn_queue_ping_rewrite(
+  ha_spider *spider,
+  SPIDER_CONN *conn,
+  int link_idx
+) {
+  DBUG_ENTER("spider_conn_queue_ping_rewrite");
+  DBUG_PRINT("info", ("spider conn=%p", conn));
+  conn->queued_ping_spider = spider;
+  conn->queued_ping_link_idx = link_idx;
+  DBUG_VOID_RETURN;
+}
+
 void spider_conn_queue_trx_isolation(
   SPIDER_CONN *conn,
   int trx_isolation
@@ -1285,6 +1311,7 @@ void spider_conn_queue_start_transaction(
 ) {
   DBUG_ENTER("spider_conn_queue_start_transaction");
   DBUG_PRINT("info", ("spider conn=%p", conn));
+  DBUG_ASSERT(!conn->trx_start);
   conn->queued_trx_start = TRUE;
   conn->trx_start = TRUE;
   DBUG_VOID_RETURN;
@@ -1325,7 +1352,11 @@ void spider_conn_clear_queue_at_commit(
 ) {
   DBUG_ENTER("spider_conn_clear_queue_at_commit");
   DBUG_PRINT("info", ("spider conn=%p", conn));
-  conn->queued_trx_start = FALSE;
+  if (conn->queued_trx_start)
+  {
+    conn->queued_trx_start = FALSE;
+    conn->trx_start = FALSE;
+  }
   conn->queued_xa_start = FALSE;
   DBUG_VOID_RETURN;
 }
@@ -2280,6 +2311,13 @@ void *spider_bg_conn_action(
     thd->clear_error();
     pthread_cond_wait(&conn->bg_conn_cond, &conn->bg_conn_mutex);
     DBUG_PRINT("info",("spider bg roop start"));
+#ifndef DBUG_OFF
+    DBUG_PRINT("info",("spider conn->thd=%p", conn->thd));
+    if (conn->thd)
+    {
+      DBUG_PRINT("info",("spider query_id=%lld", conn->thd->query_id));
+    }
+#endif
     if (conn->bg_caller_sync_wait)
     {
       pthread_mutex_lock(&conn->bg_conn_sync_mutex);
@@ -2925,6 +2963,7 @@ void *spider_bg_sts_action(
                 0,
                 share->monitoring_kind[spider.search_link_idx],
                 share->monitoring_limit[spider.search_link_idx],
+                share->monitoring_flag[spider.search_link_idx],
                 TRUE
               );
             lex_end(thd->lex);
@@ -2934,6 +2973,7 @@ void *spider_bg_sts_action(
         }
         if (spider.search_link_idx != -1 && conns[spider.search_link_idx])
         {
+          DBUG_ASSERT(!conns[spider.search_link_idx]->thd);
 #ifdef WITH_PARTITION_STORAGE_ENGINE
           if (spider_get_sts(share, spider.search_link_idx,
             share->bg_sts_try_time, &spider,
@@ -2965,6 +3005,7 @@ void *spider_bg_sts_action(
                   0,
                   share->monitoring_kind[spider.search_link_idx],
                   share->monitoring_limit[spider.search_link_idx],
+                  share->monitoring_flag[spider.search_link_idx],
                   TRUE
                 );
               lex_end(thd->lex);
@@ -3317,6 +3358,7 @@ void *spider_bg_crd_action(
                 0,
                 share->monitoring_kind[spider.search_link_idx],
                 share->monitoring_limit[spider.search_link_idx],
+                share->monitoring_flag[spider.search_link_idx],
                 TRUE
               );
             lex_end(thd->lex);
@@ -3326,6 +3368,7 @@ void *spider_bg_crd_action(
         }
         if (spider.search_link_idx != -1 && conns[spider.search_link_idx])
         {
+          DBUG_ASSERT(!conns[spider.search_link_idx]->thd);
 #ifdef WITH_PARTITION_STORAGE_ENGINE
           if (spider_get_crd(share, spider.search_link_idx,
             share->bg_crd_try_time, &spider, &table,
@@ -3357,6 +3400,7 @@ void *spider_bg_crd_action(
                   0,
                   share->monitoring_kind[spider.search_link_idx],
                   share->monitoring_limit[spider.search_link_idx],
+                  share->monitoring_flag[spider.search_link_idx],
                   TRUE
                 );
               lex_end(thd->lex);
@@ -3714,6 +3758,7 @@ void *spider_bg_mon_action(
         0,
         share->monitoring_bg_kind[link_idx],
         share->monitoring_limit[link_idx],
+        share->monitoring_bg_flag[link_idx],
         TRUE
       );
       lex_end(thd->lex);

storage/spider/spd_conn.h

@@ -100,6 +100,12 @@ void spider_conn_queue_ping(
   int link_idx
 );
 
+void spider_conn_queue_ping_rewrite(
+  ha_spider *spider,
+  SPIDER_CONN *conn,
+  int link_idx
+);
+
 void spider_conn_queue_trx_isolation(
   SPIDER_CONN *conn,
   int trx_isolation

storage/spider/spd_copy_tables.cc

@@ -1032,36 +1032,47 @@ long long spider_copy_tables_body(
   else
     copy_tables->access_charset = system_charset_info;
 
-  src_tbl_conn = copy_tables->table_conn[0];
-  select_ct = src_tbl_conn->copy_table;
-  src_tbl_conn->share->access_charset = copy_tables->access_charset;
-  select_ct->set_sql_charset(copy_tables->access_charset);
-  if (
-    select_ct->append_select_str() ||
-    select_ct->append_table_columns(table_share)
-  ) {
-    my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
-    goto error;
-  }
+  bulk_insert_rows = spider_param_udf_ct_bulk_insert_rows(
+    copy_tables->bulk_insert_rows);
+  for (src_tbl_conn = copy_tables->table_conn[0]; src_tbl_conn;
+    src_tbl_conn = src_tbl_conn->next)
+  {
+    select_ct = src_tbl_conn->copy_table;
+    src_tbl_conn->share->access_charset = copy_tables->access_charset;
+    select_ct->set_sql_charset(copy_tables->access_charset);
+    if (
+      select_ct->append_select_str() ||
+      select_ct->append_table_columns(table_share)
+    ) {
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      goto error;
+    }
 
-  if (
-    select_ct->append_from_str() ||
-    select_ct->append_table_name(0)
-  ) {
-    my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
-    goto error;
-  }
+    if (
+      select_ct->append_from_str() ||
+      select_ct->append_table_name(0)
+    ) {
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      goto error;
+    }
 
-  select_ct->set_sql_pos();
+    select_ct->set_sql_pos();
 
-  bulk_insert_rows = spider_param_udf_ct_bulk_insert_rows(
-    copy_tables->bulk_insert_rows);
-  if (
-    select_ct->append_key_order_str(key_info, 0, FALSE) ||
-    select_ct->append_limit(0, bulk_insert_rows)
-  ) {
-    my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
-    goto error;
+    if (
+      select_ct->append_key_order_str(key_info, 0, FALSE) ||
+      select_ct->append_limit(0, bulk_insert_rows)
+    ) {
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      goto error;
+    }
+
+    if (
+      copy_tables->use_transaction &&
+      select_ct->append_select_lock_str(SPIDER_LOCK_MODE_SHARED)
+    ) {
+      my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+      goto error;
+    }
   }
 
   for (dst_tbl_conn = copy_tables->table_conn[1]; dst_tbl_conn;
@@ -1188,14 +1199,6 @@ long long spider_copy_tables_body(
     table_conn->spider = tmp_spider;
   }
 
-  if (
-    copy_tables->use_transaction &&
-    select_ct->append_select_lock_str(SPIDER_LOCK_MODE_SHARED)
-  ) {
-    my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
-    goto error;
-  }
-
   if ((error_num = spider_db_udf_copy_tables(copy_tables, spider, table,
     bulk_insert_rows)))
     goto error_db_udf_copy_tables;

storage/spider/spd_db_conn.h

-/* Copyright (C) 2008-2014 Kentoku Shiba
+/* Copyright (C) 2008-2015 Kentoku Shiba
 
   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
@@ -93,7 +93,7 @@
 #define SPIDER_SQL_LIMIT_LEN (sizeof(SPIDER_SQL_LIMIT_STR) - 1)
 #define SPIDER_SQL_INTO_STR "into "
 #define SPIDER_SQL_INTO_LEN (sizeof(SPIDER_SQL_INTO_STR) - 1)
-#define SPIDER_SQL_VALUES_STR ")values"
+#define SPIDER_SQL_VALUES_STR "values"
 #define SPIDER_SQL_VALUES_LEN (sizeof(SPIDER_SQL_VALUES_STR) - 1)
 #define SPIDER_SQL_SHARED_LOCK_STR " lock in share mode"
 #define SPIDER_SQL_SHARED_LOCK_LEN (sizeof(SPIDER_SQL_SHARED_LOCK_STR) - 1)
@@ -197,6 +197,25 @@
 #define SPIDER_SQL_MINUS_STR " - "
 #define SPIDER_SQL_MINUS_LEN (sizeof(SPIDER_SQL_MINUS_STR) - 1)
 
+#define SPIDER_SQL_YEAR_STR "year"
+#define SPIDER_SQL_YEAR_LEN (sizeof(SPIDER_SQL_YEAR_STR) - 1)
+#define SPIDER_SQL_QUARTER_STR "quarter"
+#define SPIDER_SQL_QUARTER_LEN (sizeof(SPIDER_SQL_QUARTER_STR) - 1)
+#define SPIDER_SQL_MONTH_STR "month"
+#define SPIDER_SQL_MONTH_LEN (sizeof(SPIDER_SQL_MONTH_STR) - 1)
+#define SPIDER_SQL_WEEK_STR "week"
+#define SPIDER_SQL_WEEK_LEN (sizeof(SPIDER_SQL_WEEK_STR) - 1)
+#define SPIDER_SQL_DAY_STR "day"
+#define SPIDER_SQL_DAY_LEN (sizeof(SPIDER_SQL_DAY_STR) - 1)
+#define SPIDER_SQL_HOUR_STR "hour"
+#define SPIDER_SQL_HOUR_LEN (sizeof(SPIDER_SQL_HOUR_STR) - 1)
+#define SPIDER_SQL_MINUTE_STR "minute"
+#define SPIDER_SQL_MINUTE_LEN (sizeof(SPIDER_SQL_MINUTE_STR) - 1)
+#define SPIDER_SQL_SECOND_STR "second"
+#define SPIDER_SQL_SECOND_LEN (sizeof(SPIDER_SQL_SECOND_STR) - 1)
+#define SPIDER_SQL_MICROSECOND_STR "microsecond"
+#define SPIDER_SQL_MICROSECOND_LEN (sizeof(SPIDER_SQL_MICROSECOND_STR) - 1)
+
 #define SPIDER_SQL_SHOW_RECORDS_STR "select count(*) from "
 #define SPIDER_SQL_SHOW_RECORDS_LEN sizeof(SPIDER_SQL_SHOW_RECORDS_STR) - 1
 #define SPIDER_SQL_SHOW_INDEX_STR "show index from "
@@ -234,8 +253,9 @@
 #define SPIDER_SQL_INT_LEN 20
 #define SPIDER_SQL_HANDLER_CID_LEN 6
 #define SPIDER_SQL_HANDLER_CID_FORMAT "t%05u"
-#define SPIDER_UDF_PING_TABLE_PING_ONLY (1 << 0)
-#define SPIDER_UDF_PING_TABLE_USE_WHERE (1 << 1)
+#define SPIDER_UDF_PING_TABLE_PING_ONLY                (1 << 0)
+#define SPIDER_UDF_PING_TABLE_USE_WHERE                (1 << 1)
+#define SPIDER_UDF_PING_TABLE_USE_ALL_MONITORING_NODES (1 << 2)
 
 int spider_db_connect(
   const SPIDER_SHARE *share,
@@ -887,6 +907,15 @@ int spider_db_open_item_cache(
   uint dbton_id
 );
 
+int spider_db_open_item_insert_value(
+  Item_insert_value *item_insert_value,
+  ha_spider *spider,
+  spider_string *str,
+  const char *alias,
+  uint alias_length,
+  uint dbton_id
+);
+
 int spider_db_append_condition(
   ha_spider *spider,
   const char *alias,

storage/spider/spd_db_handlersocket.cc

@@ -2786,7 +2786,11 @@ int spider_db_handlersocket_util::open_item_func(
       {
         if (
           !strncasecmp("rand", func_name, func_name_length) &&
+#ifdef SPIDER_Item_args_arg_count_IS_PROTECTED
+          !item_func->argument_count()
+#else
           !item_func->arg_count
+#endif
         ) {
           if (str)
             str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
@@ -2946,13 +2950,99 @@ int spider_db_handlersocket_util::open_item_func(
           last_str_length = SPIDER_SQL_AS_TIME_LEN;
           break;
         }
-      } else if (func_name_length == 13 &&
-        !strncasecmp("utc_timestamp", func_name, func_name_length)
-      ) {
-        if (str)
-          str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
-        DBUG_RETURN(spider_db_open_item_string(item_func, spider, str,
-          alias, alias_length, dbton_id));
+      } else if (func_name_length == 13)
+      {
+        if (!strncasecmp("utc_timestamp", func_name, func_name_length))
+        {
+          if (str)
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+          DBUG_RETURN(spider_db_open_item_string(item_func, spider, str,
+            alias, alias_length, dbton_id));
+        } else if (!strncasecmp("timestampdiff", func_name, func_name_length))
+        {
+#ifdef ITEM_FUNC_TIMESTAMPDIFF_ARE_PUBLIC
+          Item_func_timestamp_diff *item_func_timestamp_diff =
+            (Item_func_timestamp_diff *) item_func;
+          if (str)
+          {
+            const char *interval_str;
+            uint interval_len;
+            switch (item_func_timestamp_diff->int_type)
+            {
+              case INTERVAL_YEAR:
+                interval_str = SPIDER_SQL_YEAR_STR;
+                interval_len = SPIDER_SQL_YEAR_LEN;
+                break;
+              case INTERVAL_QUARTER:
+                interval_str = SPIDER_SQL_QUARTER_STR;
+                interval_len = SPIDER_SQL_QUARTER_LEN;
+                break;
+              case INTERVAL_MONTH:
+                interval_str = SPIDER_SQL_MONTH_STR;
+                interval_len = SPIDER_SQL_MONTH_LEN;
+                break;
+              case INTERVAL_WEEK:
+                interval_str = SPIDER_SQL_WEEK_STR;
+                interval_len = SPIDER_SQL_WEEK_LEN;
+                break;
+              case INTERVAL_DAY:
+                interval_str = SPIDER_SQL_DAY_STR;
+                interval_len = SPIDER_SQL_DAY_LEN;
+                break;
+              case INTERVAL_HOUR:
+                interval_str = SPIDER_SQL_HOUR_STR;
+                interval_len = SPIDER_SQL_HOUR_LEN;
+                break;
+              case INTERVAL_MINUTE:
+                interval_str = SPIDER_SQL_MINUTE_STR;
+                interval_len = SPIDER_SQL_MINUTE_LEN;
+                break;
+              case INTERVAL_SECOND:
+                interval_str = SPIDER_SQL_SECOND_STR;
+                interval_len = SPIDER_SQL_SECOND_LEN;
+                break;
+              case INTERVAL_MICROSECOND:
+                interval_str = SPIDER_SQL_MICROSECOND_STR;
+                interval_len = SPIDER_SQL_MICROSECOND_LEN;
+                break;
+              default:
+                interval_str = "";
+                interval_len = 0;
+                break;
+            }
+            str->length(str->length() - SPIDER_SQL_OPEN_PAREN_LEN);
+            if (str->reserve(func_name_length + SPIDER_SQL_OPEN_PAREN_LEN +
+              interval_len + SPIDER_SQL_COMMA_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(func_name, func_name_length);
+            str->q_append(SPIDER_SQL_OPEN_PAREN_STR, SPIDER_SQL_OPEN_PAREN_LEN);
+            str->q_append(interval_str, interval_len);
+            str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+          }
+          if ((error_num = spider_db_print_item_type(item_list[0], spider,
+            str, alias, alias_length, dbton_id)))
+            DBUG_RETURN(error_num);
+          if (str)
+          {
+            if (str->reserve(SPIDER_SQL_COMMA_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_COMMA_STR, SPIDER_SQL_COMMA_LEN);
+          }
+          if ((error_num = spider_db_print_item_type(item_list[1], spider,
+            str, alias, alias_length, dbton_id)))
+            DBUG_RETURN(error_num);
+          if (str)
+          {
+            if (str->reserve(SPIDER_SQL_CLOSE_PAREN_LEN))
+              DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+            str->q_append(SPIDER_SQL_CLOSE_PAREN_STR,
+              SPIDER_SQL_CLOSE_PAREN_LEN);
+          }
+          DBUG_RETURN(0);
+#else
+          DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+#endif
+        }
       } else if (func_name_length == 14)
       {
         if (!strncasecmp("cast_as_binary", func_name, func_name_length))
@@ -3142,6 +3232,54 @@ int spider_db_handlersocket_util::open_item_func(
       }
       break;
     case Item_func::NOT_FUNC:
+      DBUG_PRINT("info",("spider NOT_FUNC"));
+      if (item_list[0]->type() == Item::COND_ITEM)
+      {
+        DBUG_PRINT("info",("spider item_list[0] is COND_ITEM"));
+        Item_cond *item_cond = (Item_cond *) item_list[0];
+        if (item_cond->functype() == Item_func::COND_AND_FUNC)
+        {
+          DBUG_PRINT("info",("spider item_cond is COND_AND_FUNC"));
+          List_iterator_fast<Item> lif(*(item_cond->argument_list()));
+          bool has_expr_cache_item = FALSE;
+          bool has_isnotnull_func = FALSE;
+          bool has_other_item = FALSE;
+          while((item = lif++))
+          {
+            if (
+              item->type() == Item::EXPR_CACHE_ITEM
+            ) {
+              DBUG_PRINT("info",("spider EXPR_CACHE_ITEM"));
+              has_expr_cache_item = TRUE;
+            } else if (
+              item->type() == Item::FUNC_ITEM &&
+              ((Item_func *) item)->functype() == Item_func::ISNOTNULL_FUNC
+            ) {
+              DBUG_PRINT("info",("spider ISNOTNULL_FUNC"));
+              has_isnotnull_func = TRUE;
+            } else {
+              DBUG_PRINT("info",("spider has other item"));
+              DBUG_PRINT("info",("spider COND type=%d", item->type()));
+              has_other_item = TRUE;
+            }
+          }
+          if (has_expr_cache_item && has_isnotnull_func && !has_other_item)
+          {
+            DBUG_PRINT("info",("spider NOT EXISTS skip"));
+            DBUG_RETURN(ER_SPIDER_COND_SKIP_NUM);
+          }
+        }
+      }
+      if (str)
+      {
+        func_name = (char*) item_func->func_name();
+        func_name_length = strlen(func_name);
+        if (str->reserve(func_name_length + SPIDER_SQL_SPACE_LEN))
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        str->q_append(func_name, func_name_length);
+        str->q_append(SPIDER_SQL_SPACE_STR, SPIDER_SQL_SPACE_LEN);
+      }
+      break;
     case Item_func::NEG_FUNC:
       if (str)
       {
@@ -3494,8 +3632,7 @@ int spider_db_handlersocket_util::append_escaped_util(
 ) {
   DBUG_ENTER("spider_db_handlersocket_util::append_escaped_util");
   DBUG_PRINT("info",("spider this=%p", this));
-  if (to->append_for_single_quote(from))
-    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+  to->append_escape_string(from->ptr(), from->length());
   DBUG_RETURN(0);
 }
 

storage/spider/spd_db_include.h

@@ -25,6 +25,7 @@
 #define SPIDER_HAS_APPEND_FOR_SINGLE_QUOTE
 #define SPIDER_HAS_SHOW_SIMPLE_FUNC
 #define SPIDER_HAS_JT_HASH_INDEX_MERGE
+#define SPIDER_HAS_EXPR_CACHE_ITEM
 #else
 #define SPIDER_NEED_CHECK_CONDITION_AT_CHECKING_DIRECT_ORDER_LIMIT
 #endif
@@ -41,6 +42,9 @@
 
 #if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100014
 #define SPIDER_ITEM_STRING_WITHOUT_SET_STR_WITH_COPY
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100100
+#define SPIDER_ITEM_STRING_WITHOUT_SET_STR_WITH_COPY_AND_THDPTR
+#endif
 #endif
 
 #if defined(MARIADB_BASE_VERSION)
@@ -501,6 +505,10 @@ public:
     uint32 arg_length,
     uint32 step_alloc
   );
+  void append_escape_string(
+    const char *st,
+    uint len
+  );
   bool append_for_single_quote(
     const char *st,
     uint len

storage/spider/spd_direct_sql.cc

-/* Copyright (C) 2009-2014 Kentoku Shiba
+/* Copyright (C) 2009-2015 Kentoku Shiba
 
   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
@@ -557,6 +557,7 @@ SPIDER_CONN *spider_udf_direct_sql_create_conn(
   if ((*error_num = spider_db_udf_direct_sql_connect(direct_sql, conn)))
     goto error;
   conn->ping_time = (time_t) time((time_t*) 0);
+  conn->connect_error_time = conn->ping_time;
 
   DBUG_RETURN(conn);
 
@@ -761,6 +762,16 @@ SPIDER_CONN *spider_udf_direct_sql_get_conn(
 #endif
   }
 
+  if (conn->queued_connect)
+  {
+    if ((*error_num = spider_db_udf_direct_sql_connect(direct_sql, conn)))
+      goto error;
+    conn->queued_connect = FALSE;
+  }
+
+  if (conn->queued_ping)
+    conn->queued_ping = FALSE;
+
   DBUG_PRINT("info",("spider conn=%p", conn));
   DBUG_PRINT("info",("spider conn->conn_kind=%u", conn->conn_kind));
   DBUG_RETURN(conn);

storage/spider/spd_err.h

@@ -63,6 +63,8 @@
 #define ER_SPIDER_REQUEST_KEY_STR "Request key not found"
 #define ER_SPIDER_CANT_OPEN_SYS_TABLE_NUM 12524
 #define ER_SPIDER_CANT_OPEN_SYS_TABLE_STR "Can't open system table %s.%s"
+#define ER_SPIDER_LINK_MON_JUST_NG_NUM 12525
+#define ER_SPIDER_LINK_MON_JUST_NG_STR "Table '%s.%s' just got a problem"
 
 #define ER_SPIDER_CANT_USE_BOTH_INNER_XA_AND_SNAPSHOT_NUM 12601
 #define ER_SPIDER_CANT_USE_BOTH_INNER_XA_AND_SNAPSHOT_STR "Can't use both spider_use_consistent_snapshot = 1 and spider_internal_xa = 1"

storage/spider/spd_include.h

@@ -13,7 +13,7 @@
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
 
-#define SPIDER_DETAIL_VERSION "3.2.21"
+#define SPIDER_DETAIL_VERSION "3.2.37"
 #define SPIDER_HEX_VERSION 0x0302
 
 #if MYSQL_VERSION_ID < 50500
@@ -117,6 +117,18 @@
 #define SPIDER_TEST(A) test(A)
 #endif
 
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100100
+#define SPIDER_FIELD_FIELDPTR_REQUIRES_THDPTR
+#define SPIDER_ENGINE_CONDITION_PUSHDOWN_IS_ALWAYS_ON
+#define SPIDER_XID_USES_xid_cache_iterate
+#else
+#define SPIDER_XID_STATE_HAS_in_thd
+#endif
+
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID >= 100108
+#define SPIDER_Item_args_arg_count_IS_PROTECTED
+#endif
+
 #if MYSQL_VERSION_ID >= 50500
 #define SPIDER_HAS_HASH_VALUE_TYPE
 #endif
@@ -141,7 +153,7 @@
 
 #define SPIDER_TMP_SHARE_CHAR_PTR_COUNT     19
 #define SPIDER_TMP_SHARE_UINT_COUNT         17
-#define SPIDER_TMP_SHARE_LONG_COUNT         16
+#define SPIDER_TMP_SHARE_LONG_COUNT         18
 #define SPIDER_TMP_SHARE_LONGLONG_COUNT      3
 
 #define SPIDER_MEM_CALC_LIST_NUM           247
@@ -436,6 +448,13 @@ typedef struct st_spider_conn
   int                bulk_access_error_num;
   st_spider_conn     *bulk_access_next;
 #endif
+
+  bool               connect_error_with_message;
+  char               connect_error_msg[MYSQL_ERRMSG_SIZE];
+  int                connect_error;
+  THD                *connect_error_thd;
+  query_id_t         connect_error_query_id;
+  time_t             connect_error_time;
 } SPIDER_CONN;
 
 typedef struct st_spider_lgtm_tblhnd_share
@@ -656,6 +675,7 @@ typedef struct st_spider_share
   volatile bool      init_error;
   volatile time_t    init_error_time;
   volatile bool      link_status_init;
+  uchar              *table_mon_mutex_bitmap;
   volatile bool      sts_init;
   volatile time_t    sts_get_time;
 #ifndef WITHOUT_SPIDER_BG_SEARCH
@@ -844,8 +864,10 @@ typedef struct st_spider_share
   long               *tgt_ssl_vscs;
   long               *link_statuses;
 #ifndef WITHOUT_SPIDER_BG_SEARCH
+  long               *monitoring_bg_flag;
   long               *monitoring_bg_kind;
 #endif
+  long               *monitoring_flag;
   long               *monitoring_kind;
 #ifndef WITHOUT_SPIDER_BG_SEARCH
   longlong           *monitoring_bg_interval;
@@ -948,8 +970,10 @@ typedef struct st_spider_share
   uint               tgt_ssl_vscs_length;
   uint               link_statuses_length;
 #ifndef WITHOUT_SPIDER_BG_SEARCH
+  uint               monitoring_bg_flag_length;
   uint               monitoring_bg_kind_length;
 #endif
+  uint               monitoring_flag_length;
   uint               monitoring_kind_length;
 #ifndef WITHOUT_SPIDER_BG_SEARCH
   uint               monitoring_bg_interval_length;
@@ -1239,8 +1263,12 @@ typedef struct st_spider_int_hld
 
 typedef struct st_spider_item_hld
 {
-  uint tgt_num;
-  Item *item;
+  uint               tgt_num;
+  Item               *item;
+#ifdef SPIDER_ITEM_STRING_WITHOUT_SET_STR_WITH_COPY_AND_THDPTR
+  bool               init_mem_root;
+  MEM_ROOT           mem_root;
+#endif
   st_spider_item_hld *next;
 } SPIDER_ITEM_HLD;
 

storage/spider/spd_malloc.cc

@@ -1222,6 +1222,20 @@ bool spider_string::append(
   DBUG_RETURN(res);
 }
 
+void spider_string::append_escape_string(
+  const char *st,
+  uint len
+) {
+  DBUG_ENTER("spider_string::append_escape_string");
+  DBUG_PRINT("info",("spider this=%p", this));
+  DBUG_ASSERT(mem_calc_inited);
+  DBUG_ASSERT((!current_alloc_mem && !str.is_alloced()) ||
+    current_alloc_mem == str.alloced_length());
+  str.length(str.length() + escape_string_for_mysql(
+    str.charset(), (char *) str.ptr() + str.length(), 0, st, len));
+  DBUG_VOID_RETURN;
+}
+
 bool spider_string::append_for_single_quote(
   const char *st,
   uint len

storage/spider/spd_param.cc

-/* Copyright (C) 2008-2014 Kentoku Shiba
+/* Copyright (C) 2008-2015 Kentoku Shiba
 
   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
@@ -178,6 +178,29 @@ my_bool spider_param_connect_mutex()
   DBUG_RETURN(spider_connect_mutex);
 }
 
+static uint spider_connect_error_interval;
+/*
+  0-: interval
+ */
+static MYSQL_SYSVAR_UINT(
+  connect_error_interval,
+  spider_connect_error_interval,
+  PLUGIN_VAR_RQCMDARG,
+  "Return same error code until interval passes if connection is failed",
+  NULL,
+  NULL,
+  1,
+  0,
+  4294967295U,
+  0
+);
+
+uint spider_param_connect_error_interval()
+{
+  DBUG_ENTER("spider_param_connect_error_interval");
+  DBUG_RETURN(spider_connect_error_interval);
+}
+
 static uint spider_table_init_error_interval;
 /*
   0-: interval
@@ -3120,6 +3143,7 @@ static struct st_mysql_sys_var* spider_system_variables[] = {
   MYSQL_SYSVAR(dry_access),
   MYSQL_SYSVAR(delete_all_rows_type),
   MYSQL_SYSVAR(bka_table_name_type),
+  MYSQL_SYSVAR(connect_error_interval),
   NULL
 };
 

storage/spider/spd_param.h

-/* Copyright (C) 2008-2014 Kentoku Shiba
+/* Copyright (C) 2008-2015 Kentoku Shiba
 
   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
@@ -15,6 +15,7 @@
 
 my_bool spider_param_support_xa();
 my_bool spider_param_connect_mutex();
+uint spider_param_connect_error_interval();
 uint spider_param_table_init_error_interval();
 int spider_param_use_table_charset(
   int use_table_charset

storage/spider/spd_ping_table.cc

-/* Copyright (C) 2009-2014 Kentoku Shiba
+/* Copyright (C) 2009-2015 Kentoku Shiba
 
   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
@@ -626,6 +626,17 @@ SPIDER_CONN *spider_get_ping_table_tgt_conn(
     *error_num = ER_CONNECT_TO_FOREIGN_DATA_SOURCE;
     goto error;
   }
+#ifndef DBUG_OFF
+  if (trx == spider_global_trx)
+  {
+    DBUG_ASSERT(!conn->thd);
+  }
+  DBUG_PRINT("info",("spider conn->thd=%p", conn->thd));
+  if (conn->thd)
+  {
+    DBUG_PRINT("info",("spider query_id=%lld", conn->thd->query_id));
+  }
+#endif
   conn->error_mode = 0;
 #ifndef WITHOUT_SPIDER_BG_SEARCH
   if (trx == spider_global_trx)
@@ -992,37 +1003,56 @@ long long spider_ping_table_body(
       limit
     ))
   ) {
+    DBUG_PRINT("info",("spider table_mon_list->mon_status == SPIDER_LINK_MON_NG:%s",
+      table_mon_list->mon_status == SPIDER_LINK_MON_NG ? "TRUE" : "FALSE"));
+    DBUG_PRINT("info",("spider error_num=%d", error_num));
+    DBUG_PRINT("info",("spider tmp_error_num=%d", tmp_error_num));
     if (tmp_error_num == HA_ERR_OUT_OF_MEM)
       goto error_with_free_table_mon_list;
     else if(tmp_error_num)
       thd->clear_error();
-    fault_count++;
-    error_num = 0;
-    if (fault_count > full_mon_count / 2)
+    if (tmp_error_num != ER_CON_COUNT_ERROR)
     {
-      mon_table_result->result_status = SPIDER_LINK_MON_NG;
-      DBUG_PRINT("info",("spider mon_table_result->result_status=SPIDER_LINK_MON_NG 2"));
-      if (table_mon_list->mon_status != SPIDER_LINK_MON_NG)
-      {
-        pthread_mutex_lock(&table_mon_list->update_status_mutex);
+      fault_count++;
+      error_num = 0;
+      if (
+        !(flags & SPIDER_UDF_PING_TABLE_USE_ALL_MONITORING_NODES) &&
+        fault_count > full_mon_count / 2
+      ) {
+        mon_table_result->result_status = SPIDER_LINK_MON_NG;
+        DBUG_PRINT("info",("spider mon_table_result->result_status=SPIDER_LINK_MON_NG 2"));
         if (table_mon_list->mon_status != SPIDER_LINK_MON_NG)
         {
-          table_mon_list->mon_status = SPIDER_LINK_MON_NG;
-          table_mon_list->share->link_statuses[0] = SPIDER_LINK_STATUS_NG;
-          spider_sys_update_tables_link_status(trx->thd,
-            conv_name.c_ptr(), conv_name_length, link_idx,
-            SPIDER_LINK_STATUS_NG, TRUE);
-          spider_sys_log_tables_link_failed(trx->thd,
-            conv_name.c_ptr(), conv_name_length, link_idx, TRUE);
+/*
+          pthread_mutex_lock(&table_mon_list->update_status_mutex);
+*/
+          pthread_mutex_lock(&spider_udf_table_mon_mutexes[table_mon_list->mutex_hash]);
+          if (table_mon_list->mon_status != SPIDER_LINK_MON_NG)
+          {
+            table_mon_list->mon_status = SPIDER_LINK_MON_NG;
+            table_mon_list->share->link_statuses[0] = SPIDER_LINK_STATUS_NG;
+            spider_update_link_status_for_share(conv_name.c_ptr(),
+              conv_name_length, link_idx, SPIDER_LINK_STATUS_NG);
+            spider_sys_update_tables_link_status(trx->thd,
+              conv_name.c_ptr(), conv_name_length, link_idx,
+              SPIDER_LINK_STATUS_NG, TRUE);
+            spider_sys_log_tables_link_failed(trx->thd,
+              conv_name.c_ptr(), conv_name_length, link_idx, TRUE);
+          }
+/*
+          pthread_mutex_unlock(&table_mon_list->update_status_mutex);
+*/
+          pthread_mutex_unlock(&spider_udf_table_mon_mutexes[table_mon_list->mutex_hash]);
         }
-        pthread_mutex_unlock(&table_mon_list->update_status_mutex);
+        goto end;
       }
-      goto end;
     }
   } else {
     success_count++;
-    if (success_count > full_mon_count / 2)
-    {
+    if (
+      !(flags & SPIDER_UDF_PING_TABLE_USE_ALL_MONITORING_NODES) &&
+      success_count > full_mon_count / 2
+    ) {
       mon_table_result->result_status = SPIDER_LINK_MON_OK;
       DBUG_PRINT("info",("spider mon_table_result->result_status=SPIDER_LINK_MON_OK 1"));
       goto end;
@@ -1048,7 +1078,42 @@ long long spider_ping_table_body(
         table_mon->server_id == first_sid ||
         current_mon_count > full_mon_count
       ) {
-        if (success_count + fault_count > full_mon_count / 2)
+        if (
+          (flags & SPIDER_UDF_PING_TABLE_USE_ALL_MONITORING_NODES) &&
+          fault_count > full_mon_count / 2
+        ) {
+          mon_table_result->result_status = SPIDER_LINK_MON_NG;
+          DBUG_PRINT("info",("spider mon_table_result->result_status=SPIDER_LINK_MON_NG 3"));
+          if (table_mon_list->mon_status != SPIDER_LINK_MON_NG)
+          {
+/*
+            pthread_mutex_lock(&table_mon_list->update_status_mutex);
+*/
+            pthread_mutex_lock(&spider_udf_table_mon_mutexes[table_mon_list->mutex_hash]);
+            if (table_mon_list->mon_status != SPIDER_LINK_MON_NG)
+            {
+              table_mon_list->mon_status = SPIDER_LINK_MON_NG;
+              table_mon_list->share->link_statuses[0] = SPIDER_LINK_STATUS_NG;
+              spider_update_link_status_for_share(conv_name.c_ptr(),
+                conv_name_length, link_idx, SPIDER_LINK_STATUS_NG);
+              spider_sys_update_tables_link_status(trx->thd,
+                conv_name.c_ptr(), conv_name_length, link_idx,
+                SPIDER_LINK_STATUS_NG, TRUE);
+              spider_sys_log_tables_link_failed(trx->thd,
+                conv_name.c_ptr(), conv_name_length, link_idx, TRUE);
+            }
+/*
+            pthread_mutex_unlock(&table_mon_list->update_status_mutex);
+*/
+            pthread_mutex_unlock(&spider_udf_table_mon_mutexes[table_mon_list->mutex_hash]);
+          }
+        } else if (
+          (flags & SPIDER_UDF_PING_TABLE_USE_ALL_MONITORING_NODES) &&
+          success_count > full_mon_count / 2
+        ) {
+          mon_table_result->result_status = SPIDER_LINK_MON_OK;
+          DBUG_PRINT("info",("spider mon_table_result->result_status=SPIDER_LINK_MON_OK 2"));
+        } else if (success_count + fault_count > full_mon_count / 2)
         {
           mon_table_result->result_status = SPIDER_LINK_MON_DRAW;
           DBUG_PRINT("info",(
@@ -1074,18 +1139,26 @@ long long spider_ping_table_body(
             mon_table_result->result_status == SPIDER_LINK_MON_NG &&
             table_mon_list->mon_status != SPIDER_LINK_MON_NG
           ) {
+/*
             pthread_mutex_lock(&table_mon_list->update_status_mutex);
+*/
+            pthread_mutex_lock(&spider_udf_table_mon_mutexes[table_mon_list->mutex_hash]);
             if (table_mon_list->mon_status != SPIDER_LINK_MON_NG)
             {
               table_mon_list->mon_status = SPIDER_LINK_MON_NG;
               table_mon_list->share->link_statuses[0] = SPIDER_LINK_STATUS_NG;
+              spider_update_link_status_for_share(conv_name.c_ptr(),
+                conv_name_length, link_idx, SPIDER_LINK_STATUS_NG);
               spider_sys_update_tables_link_status(trx->thd,
                 conv_name.c_ptr(), conv_name_length, link_idx,
                 SPIDER_LINK_STATUS_NG, TRUE);
               spider_sys_log_tables_link_failed(trx->thd,
                 conv_name.c_ptr(), conv_name_length, link_idx, TRUE);
             }
+/*
             pthread_mutex_unlock(&table_mon_list->update_status_mutex);
+*/
+            pthread_mutex_unlock(&spider_udf_table_mon_mutexes[table_mon_list->mutex_hash]);
           }
           table_mon_list->last_receptor_result =
             mon_table_result->result_status;
@@ -1245,6 +1318,7 @@ int spider_ping_table_mon_from_table(
   uint where_clause_length,
   long monitoring_kind,
   longlong monitoring_limit,
+  long monitoring_flag,
   bool need_lock
 ) {
   int error_num = 0, current_mon_count, flags;
@@ -1312,6 +1386,9 @@ int spider_ping_table_mon_from_table(
   else
     flags = 0;
 
+  if (monitoring_flag & 1)
+    flags |= SPIDER_UDF_PING_TABLE_USE_ALL_MONITORING_NODES;
+
   if (!(table_mon_list = spider_get_ping_table_mon_list(trx, thd,
     &conv_name_str, conv_name_length, link_idx, server_id, need_lock,
     &error_num)))
@@ -1321,7 +1398,9 @@ int spider_ping_table_mon_from_table(
   {
     DBUG_PRINT("info",
       ("spider share->link_statuses[%d]=SPIDER_LINK_STATUS_NG", link_idx));
+    pthread_mutex_lock(&spider_udf_table_mon_mutexes[table_mon_list->mutex_hash]);
     share->link_statuses[link_idx] = SPIDER_LINK_STATUS_NG;
+    pthread_mutex_unlock(&spider_udf_table_mon_mutexes[table_mon_list->mutex_hash]);
     error_num = ER_SPIDER_LINK_MON_NG_NUM;
     my_printf_error(error_num,
       ER_SPIDER_LINK_MON_NG_STR, MYF(0),
@@ -1386,7 +1465,10 @@ int spider_ping_table_mon_from_table(
               mon_table_result.result_status == SPIDER_LINK_MON_NG &&
               table_mon_list->mon_status != SPIDER_LINK_MON_NG
             ) {
+/*
               pthread_mutex_lock(&table_mon_list->update_status_mutex);
+*/
+              pthread_mutex_lock(&spider_udf_table_mon_mutexes[table_mon_list->mutex_hash]);
               if (table_mon_list->mon_status != SPIDER_LINK_MON_NG)
               {
                 table_mon_list->mon_status = SPIDER_LINK_MON_NG;
@@ -1400,7 +1482,10 @@ int spider_ping_table_mon_from_table(
                 spider_sys_log_tables_link_failed(thd, conv_name,
                   conv_name_length, link_idx, need_lock);
               }
+/*
               pthread_mutex_unlock(&table_mon_list->update_status_mutex);
+*/
+              pthread_mutex_unlock(&spider_udf_table_mon_mutexes[table_mon_list->mutex_hash]);
             }
             table_mon_list->last_caller_result = mon_table_result.result_status;
             if (mon_table_result.result_status == SPIDER_LINK_MON_OK)

storage/spider/spd_ping_table.h

@@ -98,5 +98,6 @@ int spider_ping_table_mon_from_table(
   uint where_clause_length,
   long monitoring_kind,
   longlong monitoring_limit,
+  long monitoring_flag,
   bool need_lock
 );

storage/spider/spd_sys_table.cc

-/* Copyright (C) 2008-2014 Kentoku Shiba
+/* Copyright (C) 2008-2015 Kentoku Shiba
 
   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
@@ -2280,7 +2280,9 @@ int spider_get_link_statuses(
       if (
         (error_num == HA_ERR_KEY_NOT_FOUND || error_num == HA_ERR_END_OF_FILE)
       ) {
+/*
         table->file->print_error(error_num, MYF(0));
+*/
         DBUG_RETURN(error_num);
       }
     } else if ((error_num =
@@ -2390,8 +2392,13 @@ TABLE *spider_mk_sys_tmp_table(
     goto error_alloc_field;
   field->init(table);
 
+#ifdef SPIDER_FIELD_FIELDPTR_REQUIRES_THDPTR
+  if (!(i_field = new (thd->mem_root) Item_field(thd, (Field *) field)))
+    goto error_alloc_item_field;
+#else
   if (!(i_field = new Item_field((Field *) field)))
     goto error_alloc_item_field;
+#endif
 
   if (i_list.push_back(i_field))
     goto error_push_item;
@@ -2443,8 +2450,13 @@ TABLE *spider_mk_sys_tmp_table_for_result(
     goto error_alloc_field1;
   field1->init(table);
 
+#ifdef SPIDER_FIELD_FIELDPTR_REQUIRES_THDPTR
+  if (!(i_field1 = new (thd->mem_root) Item_field(thd, (Field *) field1)))
+    goto error_alloc_item_field1;
+#else
   if (!(i_field1 = new Item_field((Field *) field1)))
     goto error_alloc_item_field1;
+#endif
 
   if (i_list.push_back(i_field1))
     goto error_push_item1;
@@ -2454,8 +2466,13 @@ TABLE *spider_mk_sys_tmp_table_for_result(
     goto error_alloc_field2;
   field2->init(table);
 
+#ifdef SPIDER_FIELD_FIELDPTR_REQUIRES_THDPTR
+  if (!(i_field2 = new (thd->mem_root) Item_field(thd, (Field *) field2)))
+    goto error_alloc_item_field2;
+#else
   if (!(i_field2 = new Item_field((Field *) field2)))
     goto error_alloc_item_field2;
+#endif
 
   if (i_list.push_back(i_field2))
     goto error_push_item2;
@@ -2465,8 +2482,13 @@ TABLE *spider_mk_sys_tmp_table_for_result(
     goto error_alloc_field3;
   field3->init(table);
 
+#ifdef SPIDER_FIELD_FIELDPTR_REQUIRES_THDPTR
+  if (!(i_field3 = new (thd->mem_root) Item_field(thd, (Field *) field3)))
+    goto error_alloc_item_field3;
+#else
   if (!(i_field3 = new Item_field((Field *) field3)))
     goto error_alloc_item_field3;
+#endif
 
   if (i_list.push_back(i_field3))
     goto error_push_item3;

storage/spider/spd_table.h

@@ -204,6 +204,13 @@ int spider_free_share(
   SPIDER_SHARE *share
 );
 
+void spider_update_link_status_for_share(
+  const char *table_name,
+  uint table_name_length,
+  int link_idx,
+  long link_status
+);
+
 #ifdef WITH_PARTITION_STORAGE_ENGINE
 SPIDER_PARTITION_SHARE *spider_get_pt_share(
   SPIDER_SHARE *share,

storage/spider/spd_trx.cc

-/* Copyright (C) 2008-2014 Kentoku Shiba
+/* Copyright (C) 2008-2015 Kentoku Shiba
 
   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
@@ -38,11 +38,14 @@
 #include "spd_ping_table.h"
 #include "spd_malloc.h"
 
+#ifdef SPIDER_XID_USES_xid_cache_iterate
+#else
 #ifdef XID_CACHE_IS_SPLITTED
 extern uint *spd_db_att_xid_cache_split_num;
 #endif
 extern pthread_mutex_t *spd_db_att_LOCK_xid_cache;
 extern HASH *spd_db_att_xid_cache;
+#endif
 extern struct charset_info_st *spd_charset_utf8_bin;
 
 extern handlerton *spider_hton_ptr;
@@ -1641,14 +1644,24 @@ int spider_xa_lock(
   int error_num;
   const char *old_proc_info;
   DBUG_ENTER("spider_xa_lock");
+#ifdef SPIDER_XID_USES_xid_cache_iterate
+#else
 #ifdef SPIDER_HAS_HASH_VALUE_TYPE
   my_hash_value_type hash_value = my_calc_hash(spd_db_att_xid_cache,
     (uchar*) xid_state->xid.key(), xid_state->xid.key_length());
 #ifdef XID_CACHE_IS_SPLITTED
   uint idx = hash_value % *spd_db_att_xid_cache_split_num;
 #endif
+#endif
 #endif
   old_proc_info = thd_proc_info(thd, "Locking xid by Spider");
+#ifdef SPIDER_XID_USES_xid_cache_iterate
+  if (xid_cache_insert(thd, xid_state))
+  {
+    error_num = my_errno;
+    goto error;
+  }
+#else
 #ifdef XID_CACHE_IS_SPLITTED
   pthread_mutex_lock(&spd_db_att_LOCK_xid_cache[idx]);
 #else
@@ -1689,15 +1702,19 @@ int spider_xa_lock(
   pthread_mutex_unlock(&spd_db_att_LOCK_xid_cache[idx]);
 #else
   pthread_mutex_unlock(spd_db_att_LOCK_xid_cache);
+#endif
 #endif
   thd_proc_info(thd, old_proc_info);
   DBUG_RETURN(0);
 
 error:
+#ifdef SPIDER_XID_USES_xid_cache_iterate
+#else
 #ifdef XID_CACHE_IS_SPLITTED
   pthread_mutex_unlock(&spd_db_att_LOCK_xid_cache[idx]);
 #else
   pthread_mutex_unlock(spd_db_att_LOCK_xid_cache);
+#endif
 #endif
   thd_proc_info(thd, old_proc_info);
   DBUG_RETURN(error_num);
@@ -1709,14 +1726,20 @@ int spider_xa_unlock(
   THD *thd = current_thd;
   const char *old_proc_info;
   DBUG_ENTER("spider_xa_unlock");
+#ifdef SPIDER_XID_USES_xid_cache_iterate
+#else
 #if defined(SPIDER_HAS_HASH_VALUE_TYPE) && defined(HASH_UPDATE_WITH_HASH_VALUE)
   my_hash_value_type hash_value = my_calc_hash(spd_db_att_xid_cache,
     (uchar*) xid_state->xid.key(), xid_state->xid.key_length());
 #ifdef XID_CACHE_IS_SPLITTED
   uint idx = hash_value % *spd_db_att_xid_cache_split_num;
 #endif
+#endif
 #endif
   old_proc_info = thd_proc_info(thd, "Unlocking xid by Spider");
+#ifdef SPIDER_XID_USES_xid_cache_iterate
+  xid_cache_delete(thd, xid_state);
+#else
 #ifdef XID_CACHE_IS_SPLITTED
   pthread_mutex_lock(&spd_db_att_LOCK_xid_cache[idx]);
 #else
@@ -1737,6 +1760,7 @@ int spider_xa_unlock(
   pthread_mutex_unlock(&spd_db_att_LOCK_xid_cache[idx]);
 #else
   pthread_mutex_unlock(spd_db_att_LOCK_xid_cache);
+#endif
 #endif
   thd_proc_info(thd, old_proc_info);
   DBUG_RETURN(0);
@@ -1857,7 +1881,9 @@ int spider_internal_start_trx(
 
       trx->internal_xid_state.xa_state = XA_ACTIVE;
       trx->internal_xid_state.xid.set(&trx->xid);
+#ifdef SPIDER_XID_STATE_HAS_in_thd
       trx->internal_xid_state.in_thd = 1;
+#endif
       if ((error_num = spider_xa_lock(&trx->internal_xid_state)))
       {
         if (error_num == ER_SPIDER_XA_LOCKED_NUM)
@@ -3729,6 +3755,7 @@ int spider_check_trx_and_get_conn(
           spider->hs_w_conns[roop_count] = NULL;
 #endif
       }
+      bool search_link_idx_is_checked = FALSE;
       for (
         roop_count = spider_conn_link_idx_next(share->link_statuses,
           spider->conn_link_idx, -1, share->link_count,
@@ -3740,6 +3767,8 @@ int spider_check_trx_and_get_conn(
       ) {
         uint tgt_conn_kind = (use_conn_kind ? spider->conn_kind[roop_count] :
           SPIDER_CONN_KIND_MYSQL);
+        if (roop_count == spider->search_link_idx)
+          search_link_idx_is_checked = TRUE;
         if (
 #if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
           (
@@ -3780,6 +3809,7 @@ int spider_check_trx_and_get_conn(
                 0,
                 share->monitoring_kind[roop_count],
                 share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
                 TRUE
               );
             }
@@ -3821,6 +3851,7 @@ int spider_check_trx_and_get_conn(
                 0,
                 share->monitoring_kind[roop_count],
                 share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
                 TRUE
               );
             }
@@ -3834,9 +3865,41 @@ int spider_check_trx_and_get_conn(
 #endif
 #endif
       }
+      if (!search_link_idx_is_checked)
+      {
+        TABLE *table = spider->get_table();
+        TABLE_SHARE *table_share = table->s;
+#ifdef _MSC_VER
+        char *db, *table_name;
+        if (!(db = (char *)
+          spider_bulk_malloc(spider_current_trx, 57, MYF(MY_WME),
+            &db, table_share->db.length + 1,
+            &table_name, table_share->table_name.length + 1,
+            NullS))
+        ) {
+          my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+#else
+        char db[table_share->db.length + 1],
+          table_name[table_share->table_name.length + 1];
+#endif
+        memcpy(db, table_share->db.str, table_share->db.length);
+        db[table_share->db.length] = '\0';
+        memcpy(table_name, table_share->table_name.str,
+          table_share->table_name.length);
+        table_name[table_share->table_name.length] = '\0';
+        my_printf_error(ER_SPIDER_LINK_MON_JUST_NG_NUM,
+          ER_SPIDER_LINK_MON_JUST_NG_STR, MYF(0), db, table_name);
+#ifdef _MSC_VER
+        spider_free(trx, db, MYF(MY_WME));
+#endif
+        DBUG_RETURN(ER_SPIDER_LINK_MON_JUST_NG_NUM);
+      }
     } else {
       DBUG_PRINT("info",("spider link_status = %ld",
         share->link_statuses[spider->conn_link_idx[spider->search_link_idx]]));
+      bool search_link_idx_is_checked = FALSE;
       for (
         roop_count = spider_conn_link_idx_next(share->link_statuses,
           spider->conn_link_idx, -1, share->link_count,
@@ -3846,6 +3909,8 @@ int spider_check_trx_and_get_conn(
           spider->conn_link_idx, roop_count, share->link_count,
           SPIDER_LINK_STATUS_RECOVERY)
       ) {
+        if (roop_count == spider->search_link_idx)
+          search_link_idx_is_checked = TRUE;
 #if defined(HS_HAS_SQLCOM) && defined(HAVE_HANDLERSOCKET)
         if (
           !use_conn_kind ||
@@ -3890,6 +3955,7 @@ int spider_check_trx_and_get_conn(
                 0,
                 share->monitoring_kind[roop_count],
                 share->monitoring_limit[roop_count],
+                share->monitoring_flag[roop_count],
                 TRUE
               );
             }
@@ -3932,6 +3998,7 @@ int spider_check_trx_and_get_conn(
                   0,
                   share->monitoring_kind[roop_count],
                   share->monitoring_limit[roop_count],
+                  share->monitoring_flag[roop_count],
                   TRUE
                 );
               }
@@ -3944,6 +4011,37 @@ int spider_check_trx_and_get_conn(
 #endif
 #endif
       }
+      if (!search_link_idx_is_checked)
+      {
+        TABLE *table = spider->get_table();
+        TABLE_SHARE *table_share = table->s;
+#ifdef _MSC_VER
+        char *db, *table_name;
+        if (!(db = (char *)
+          spider_bulk_malloc(spider_current_trx, 57, MYF(MY_WME),
+            &db, table_share->db.length + 1,
+            &table_name, table_share->table_name.length + 1,
+            NullS))
+        ) {
+          my_error(ER_OUT_OF_RESOURCES, MYF(0), HA_ERR_OUT_OF_MEM);
+          DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+        }
+#else
+        char db[table_share->db.length + 1],
+          table_name[table_share->table_name.length + 1];
+#endif
+        memcpy(db, table_share->db.str, table_share->db.length);
+        db[table_share->db.length] = '\0';
+        memcpy(table_name, table_share->table_name.str,
+          table_share->table_name.length);
+        table_name[table_share->table_name.length] = '\0';
+        my_printf_error(ER_SPIDER_LINK_MON_JUST_NG_NUM,
+          ER_SPIDER_LINK_MON_JUST_NG_STR, MYF(0), db, table_name);
+#ifdef _MSC_VER
+        spider_free(trx, db, MYF(MY_WME));
+#endif
+        DBUG_RETURN(ER_SPIDER_LINK_MON_JUST_NG_NUM);
+      }
     }
     spider->set_first_link_idx();
     DBUG_RETURN(spider_create_trx_ha(trx, spider, trx_ha));