1 files changed, 60 insertions, 2 deletions

diff --git a/extra/mariabackup/xtrabackup.cc b/extra/mariabackup/xtrabackup.cc
index bb1e2eaf42d..c1b2a1a9c85 100644
--- a/extra/mariabackup/xtrabackup.cc
+++ b/extra/mariabackup/xtrabackup.cc
@@ -240,7 +240,8 @@ long innobase_log_buffer_size = 1024*1024L;
 long innobase_open_files = 300L;
 
 longlong innobase_page_size = (1LL << 14); /* 16KB */
-char*	innobase_buffer_pool_filename = NULL;
+char *innobase_buffer_pool_filename = NULL;
+char *buffer_pool_filename = NULL;
 
 /* The default values for the following char* start-up parameters
 are determined in innobase_init below: */
@@ -347,6 +348,7 @@ uint opt_lock_wait_timeout = 0;
 uint opt_lock_wait_threshold = 0;
 uint opt_debug_sleep_before_unlock = 0;
 uint opt_safe_slave_backup_timeout = 0;
+uint opt_max_binlogs = UINT_MAX;
 
 const char *opt_history = NULL;
 
@@ -1051,7 +1053,8 @@ enum options_xtrabackup
   OPT_BACKUP_ROCKSDB,
   OPT_XTRA_CHECK_PRIVILEGES,
   OPT_XB_IGNORE_INNODB_PAGE_CORRUPTION,
-  OPT_INNODB_FORCE_RECOVERY
+  OPT_INNODB_FORCE_RECOVERY,
+  OPT_MAX_BINLOGS
 };
 
 struct my_option xb_client_options[]= {
@@ -1454,6 +1457,17 @@ struct my_option xb_client_options[]= {
      &opt_log_innodb_page_corruption, &opt_log_innodb_page_corruption, 0,
      GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
 
+    {"sst_max_binlogs", OPT_MAX_BINLOGS,
+     "Number of recent binary logs to be included in the backup. "
+     "Setting this parameter to zero normally disables transmission "
+     "of binary logs to the joiner nodes during SST using Galera. "
+     "But sometimes a single current binlog can still be transmitted "
+     "to the joiner even with sst_max_binlogs=0, because it is "
+     "required for Galera to work properly with GTIDs support.",
+     (G_PTR *) &opt_max_binlogs,
+     (G_PTR *) &opt_max_binlogs, 0, GET_UINT, OPT_ARG,
+     UINT_MAX, 0, UINT_MAX, 0, 1, 0},
+
 #define MYSQL_CLIENT
 #include "sslopt-longopts.h"
 #undef MYSQL_CLIENT
@@ -6272,6 +6286,44 @@ check_all_privileges()
 	}
 }
 
+static
+void
+xb_init_buffer_pool(const char * filename)
+{
+	if (filename &&
+#ifdef _WIN32
+		(filename[0] == '/'  ||
+		 filename[0] == '\\' ||
+		 strchr(filename, ':')))
+#else
+		filename[0] == FN_LIBCHAR)
+#endif
+	{
+		buffer_pool_filename = strdup(filename);
+	} else {
+		char filepath[FN_REFLEN];
+		char *dst_dir =
+			(innobase_data_home_dir && *innobase_data_home_dir) ?
+			 innobase_data_home_dir : mysql_data_home;
+		size_t dir_length;
+		if (dst_dir && *dst_dir) {
+			dir_length = strlen(dst_dir);
+			while (IS_TRAILING_SLASH(dst_dir, dir_length)) {
+				dir_length--;
+			}
+			memcpy(filepath, dst_dir, dir_length);
+		}
+		else {
+			filepath[0] = '.';
+			dir_length = 1;
+		}
+		snprintf(filepath + dir_length,
+			sizeof(filepath) - dir_length, "%c%s", FN_LIBCHAR,
+			filename ? filename : "ib_buffer_pool");
+		buffer_pool_filename = strdup(filepath);
+	}
+}
+
 bool
 xb_init()
 {
@@ -6336,11 +6388,15 @@ xb_init()
 		if (!get_mysql_vars(mysql_connection)) {
 			return(false);
 		}
+		xb_init_buffer_pool(buffer_pool_filename);
+
 		if (opt_check_privileges) {
 			check_all_privileges();
 		}
 		history_start_time = time(NULL);
 
+	} else {
+		xb_init_buffer_pool(innobase_buffer_pool_filename);
 	}
 
 	return(true);
@@ -6634,6 +6690,8 @@ int main(int argc, char **argv)
 	free_error_messages();
 	mysql_mutex_destroy(&LOCK_error_log);
 
+	free(buffer_pool_filename);
+
 	if (status == EXIT_SUCCESS) {
 		msg("completed OK!");
 	}