/*
- * Bacula Catalog Database routines specific to MySQL
- * These are MySQL specific routines -- hopefully all
- * other files are generic.
- *
- * Kern Sibbald, March 2000
- *
- * Version $Id$
- */
+ Bacula® - The Network Backup Solution
-/*
- Copyright (C) 2000-2004 Kern Sibbald and John Walker
+ Copyright (C) 2000-2010 Free Software Foundation Europe e.V.
- 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 the Free Software Foundation; either version 2 of
- the License, or (at your option) any later version.
+ The main author of Bacula is Kern Sibbald, with contributions from
+ many others, a complete list can be found in the file AUTHORS.
+ This program is Free Software; you can redistribute it and/or
+ modify it under the terms of version two of the GNU General Public
+ License as published by the Free Software Foundation and included
+ in the file LICENSE.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
- You should have received a copy of the GNU General Public
- License along with this program; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- MA 02111-1307, USA.
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA.
+ Bacula® is a registered trademark of Kern Sibbald.
+ The licensor of Bacula is the Free Software Foundation Europe
+ (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
+ Switzerland, email:ftf@fsfeurope.org.
+*/
+/*
+ * Bacula Catalog Database routines specific to MySQL
+ * These are MySQL specific routines -- hopefully all
+ * other files are generic.
+ *
+ * Kern Sibbald, March 2000
+ *
*/
/* The following is necessary so that we do not include
* the dummy external definition of DB.
*/
-#define __SQL_C /* indicate that this is sql.c */
+#define __SQL_C /* indicate that this is sql.c */
#include "bacula.h"
#include "cats.h"
*/
/* List of open databases */
-static BQUEUE db_list = {&db_list, &db_list};
+static dlist *db_list = NULL;
static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
+/*
+ * Retrieve database type
+ */
+const char *
+db_get_type(void)
+{
+ return "MySQL";
+}
+
/*
* Initialize database data structure. In principal this should
* never have errors, or it is really fatal.
*/
B_DB *
-db_init_database(JCR *jcr, char *db_name, char *db_user, char *db_password,
- char *db_address, int db_port, char *db_socket)
+db_init_database(JCR *jcr, const char *db_name, const char *db_user, const char *db_password,
+ const char *db_address, int db_port, const char *db_socket,
+ int mult_db_connections)
{
- B_DB *mdb;
+ B_DB *mdb = NULL;
- if (!db_user) {
+ if (!db_user) {
Jmsg(jcr, M_FATAL, 0, _("A user name for MySQL must be supplied.\n"));
return NULL;
}
- P(mutex); /* lock DB queue */
+ P(mutex); /* lock DB queue */
+ if (db_list == NULL) {
+ db_list = New(dlist(mdb, &mdb->link));
+ }
/* Look to see if DB already open */
- for (mdb=NULL; (mdb=(B_DB *)qnext(&db_list, &mdb->bq)); ) {
- if (strcmp(mdb->db_name, db_name) == 0) {
- Dmsg2(100, "DB REopen %d %s\n", mdb->ref_count, db_name);
- mdb->ref_count++;
- V(mutex);
- return mdb; /* already open */
+ if (!mult_db_connections) {
+ foreach_dlist(mdb, db_list) {
+ if (bstrcmp(mdb->db_name, db_name) &&
+ bstrcmp(mdb->db_address, db_address) &&
+ mdb->db_port == db_port) {
+ Dmsg2(100, "DB REopen %d %s\n", mdb->ref_count, db_name);
+ mdb->ref_count++;
+ V(mutex);
+ Dmsg3(100, "initdb ref=%d connected=%d db=%p\n", mdb->ref_count,
+ mdb->connected, mdb->db);
+ return mdb; /* already open */
+ }
}
}
Dmsg0(100, "db_open first time\n");
- mdb = (B_DB *) malloc(sizeof(B_DB));
+ mdb = (B_DB *)malloc(sizeof(B_DB));
memset(mdb, 0, sizeof(B_DB));
mdb->db_name = bstrdup(db_name);
mdb->db_user = bstrdup(db_user);
mdb->db_socket = bstrdup(db_socket);
}
mdb->db_port = db_port;
- mdb->have_insert_id = TRUE;
mdb->errmsg = get_pool_memory(PM_EMSG); /* get error message buffer */
*mdb->errmsg = 0;
mdb->cmd = get_pool_memory(PM_EMSG); /* get command buffer */
mdb->fname = get_pool_memory(PM_FNAME);
mdb->path = get_pool_memory(PM_FNAME);
mdb->esc_name = get_pool_memory(PM_FNAME);
- qinsert(&db_list, &mdb->bq); /* put db in list */
+ mdb->esc_path = get_pool_memory(PM_FNAME);
+ mdb->esc_obj = get_pool_memory(PM_FNAME);
+ mdb->allow_transactions = mult_db_connections;
+ db_list->append(mdb); /* put db in list */
+ Dmsg3(100, "initdb ref=%d connected=%d db=%p\n", mdb->ref_count,
+ mdb->connected, mdb->db);
V(mutex);
return mdb;
}
V(mutex);
return 1;
}
- mdb->connected = FALSE;
if ((errstat=rwl_init(&mdb->lock)) != 0) {
- Mmsg1(&mdb->errmsg, _("Unable to initialize DB lock. ERR=%s\n"),
- strerror(errstat));
+ berrno be;
+ Mmsg1(&mdb->errmsg, _("Unable to initialize DB lock. ERR=%s\n"),
+ be.bstrerror(errstat));
V(mutex);
return 0;
}
/* connect to the database */
-#ifdef HAVE_EMBEDDED_MYSQL
- mysql_server_init(0, NULL, NULL);
+#ifdef xHAVE_EMBEDDED_MYSQL
+// mysql_server_init(0, NULL, NULL);
#endif
- mysql_init(&(mdb->mysql));
+ mysql_init(&mdb->mysql);
+
Dmsg0(50, "mysql_init done\n");
- mdb->db = mysql_real_connect(
- &(mdb->mysql), /* db */
- mdb->db_address, /* default = localhost */
- mdb->db_user, /* login name */
- mdb->db_password, /* password */
- mdb->db_name, /* database name */
- mdb->db_port, /* default port */
- mdb->db_socket, /* default = socket */
- CLIENT_FOUND_ROWS); /* flags */
-
- /* If no connect, try once more in case it is a timing problem */
- if (mdb->db == NULL) {
+ /* If connection fails, try at 5 sec intervals for 30 seconds. */
+ for (int retry=0; retry < 6; retry++) {
mdb->db = mysql_real_connect(
- &(mdb->mysql), /* db */
- mdb->db_address, /* default = localhost */
- mdb->db_user, /* login name */
- mdb->db_password, /* password */
- mdb->db_name, /* database name */
- mdb->db_port, /* default port */
- mdb->db_socket, /* default = socket */
- CLIENT_FOUND_ROWS); /* flags */
+ &(mdb->mysql), /* db */
+ mdb->db_address, /* default = localhost */
+ mdb->db_user, /* login name */
+ mdb->db_password, /* password */
+ mdb->db_name, /* database name */
+ mdb->db_port, /* default port */
+ mdb->db_socket, /* default = socket */
+ CLIENT_FOUND_ROWS); /* flags */
+
+ /* If no connect, try once more in case it is a timing problem */
+ if (mdb->db != NULL) {
+ break;
+ }
+ bmicrosleep(5,0);
}
-
+
+ mdb->mysql.reconnect = 1; /* so connection does not timeout */
Dmsg0(50, "mysql_real_connect done\n");
- Dmsg3(50, "db_user=%s db_name=%s db_password=%s\n", mdb->db_user, mdb->db_name,
+ Dmsg3(50, "db_user=%s db_name=%s db_password=%s\n", mdb->db_user, mdb->db_name,
mdb->db_password==NULL?"(NULL)":mdb->db_password);
-
+
if (mdb->db == NULL) {
- Mmsg2(&mdb->errmsg, _("Unable to connect to MySQL server. \n\
-Database=%s User=%s\n\
-It is probably not running or your password is incorrect.\n"),
- mdb->db_name, mdb->db_user);
+ Mmsg2(&mdb->errmsg, _("Unable to connect to MySQL server.\n"
+"Database=%s User=%s\n"
+"MySQL connect failed either server not running or your authorization is incorrect.\n"),
+ mdb->db_name, mdb->db_user);
+#if MYSQL_VERSION_ID >= 40101
+ Dmsg3(50, "Error %u (%s): %s\n",
+ mysql_errno(&(mdb->mysql)), mysql_sqlstate(&(mdb->mysql)),
+ mysql_error(&(mdb->mysql)));
+#else
+ Dmsg2(50, "Error %u: %s\n",
+ mysql_errno(&(mdb->mysql)), mysql_error(&(mdb->mysql)));
+#endif
V(mutex);
return 0;
}
+ mdb->connected = true;
if (!check_tables_version(jcr, mdb)) {
V(mutex);
return 0;
}
-#ifdef HAVE_TREAD_SAFE_MYSQL
- my_thread_init();
-#endif
+ Dmsg3(100, "opendb ref=%d connected=%d db=%p\n", mdb->ref_count,
+ mdb->connected, mdb->db);
+
+ /* Set connection timeout to 8 days specialy for batch mode */
+ sql_query(mdb, "SET wait_timeout=691200");
+ sql_query(mdb, "SET interactive_timeout=691200");
- mdb->connected = TRUE;
V(mutex);
return 1;
}
if (!mdb) {
return;
}
+ db_end_transaction(jcr, mdb);
P(mutex);
+ sql_free_result(mdb);
mdb->ref_count--;
-#ifdef HAVE_TREAD_SAFE_MYSQL
- my_thread_end();
-#endif
+ Dmsg3(100, "closedb ref=%d connected=%d db=%p\n", mdb->ref_count,
+ mdb->connected, mdb->db);
if (mdb->ref_count == 0) {
- qdchain(&mdb->bq);
- if (mdb->connected && mdb->db) {
- sql_close(mdb);
-#ifdef HAVE_EMBEDDED_MYSQL
- mysql_server_end();
+ db_list->remove(mdb);
+ if (mdb->connected) {
+ Dmsg1(100, "close db=%p\n", mdb->db);
+ mysql_close(&mdb->mysql);
+
+#ifdef xHAVE_EMBEDDED_MYSQL
+// mysql_server_end();
#endif
}
- rwl_destroy(&mdb->lock);
+ rwl_destroy(&mdb->lock);
free_pool_memory(mdb->errmsg);
free_pool_memory(mdb->cmd);
free_pool_memory(mdb->cached_path);
free_pool_memory(mdb->fname);
free_pool_memory(mdb->path);
free_pool_memory(mdb->esc_name);
+ free_pool_memory(mdb->esc_path);
+ free_pool_memory(mdb->esc_obj);
if (mdb->db_name) {
- free(mdb->db_name);
+ free(mdb->db_name);
}
if (mdb->db_user) {
- free(mdb->db_user);
+ free(mdb->db_user);
}
if (mdb->db_password) {
- free(mdb->db_password);
+ free(mdb->db_password);
}
if (mdb->db_address) {
- free(mdb->db_address);
+ free(mdb->db_address);
}
if (mdb->db_socket) {
- free(mdb->db_socket);
+ free(mdb->db_socket);
}
free(mdb);
+ if (db_list->size() == 0) {
+ delete db_list;
+ db_list = NULL;
+ }
}
V(mutex);
}
+void db_check_backend_thread_safe()
+{
+#ifdef HAVE_BATCH_FILE_INSERT
+ if (!mysql_thread_safe()) {
+ Emsg0(M_ABORT, 0, _("MySQL client library must be thread-safe "
+ "when using BatchMode.\n"));
+ }
+#endif
+}
+
+/*
+ * This call is needed because the message channel thread
+ * opens a database on behalf of a jcr that was created in
+ * a different thread. MySQL then allocates thread specific
+ * data, which is NOT freed when the original jcr thread
+ * closes the database. Thus the msgchan must call here
+ * to cleanup any thread specific data that it created.
+ */
+void db_thread_cleanup()
+{
+#ifndef HAVE_WIN32
+ my_thread_end();
+#endif
+}
+
/*
* Return the next unique index (auto-increment) for
* the given table. Return NULL on error.
- *
+ *
* For MySQL, NULL causes the auto-increment value
* to be updated.
*/
{
strcpy(index, "NULL");
return 1;
-}
+}
+/*
+ * Escape binary object so that MySQL is happy
+ * Memory is stored in B_DB struct, no need to free it
+ */
+char *
+db_escape_object(JCR *jcr, B_DB *mdb, char *old, int len)
+{
+ mdb->esc_obj = check_pool_memory_size(mdb->esc_obj, len*2+1);
+ mysql_real_escape_string(mdb->db, mdb->esc_obj, old, len);
+ return mdb->esc_obj;
+}
+
+/*
+ * Unescape binary object so that MySQL is happy
+ */
+void
+db_unescape_object(JCR *jcr, B_DB *db,
+ char *from, int32_t expected_len,
+ POOLMEM **dest, int32_t *dest_len)
+{
+ if (!from) {
+ *dest[0] = 0;
+ *dest_len = 0;
+ return;
+ }
+ *dest = check_pool_memory_size(*dest, expected_len+1);
+ *dest_len = expected_len;
+ memcpy(*dest, from, expected_len);
+ (*dest)[expected_len]=0;
+}
/*
* Escape strings so that MySQL is happy
*
* NOTE! len is the length of the old string. Your new
- * string must be long enough (max 2*old+1) to hold
- * the escaped output.
+ * string must be long enough (max 2*old+1) to hold
+ * the escaped output.
*/
void
-db_escape_string(char *snew, char *old, int len)
+db_escape_string(JCR *jcr, B_DB *mdb, char *snew, char *old, int len)
{
- mysql_escape_string(snew, old, len);
-
-#ifdef DO_IT_MYSELF
-
-/* Should use mysql_real_escape_string ! */
-unsigned long mysql_real_escape_string(MYSQL *mysql, char *to, const char *from, unsigned long length);
-
- char *n, *o;
-
- n = snew;
- o = old;
- while (len--) {
- switch (*o) {
- case 0:
- *n++= '\\';
- *n++= '0';
- o++;
- break;
- case '\n':
- *n++= '\\';
- *n++= 'n';
- o++;
- break;
- case '\r':
- *n++= '\\';
- *n++= 'r';
- o++;
- break;
- case '\\':
- *n++= '\\';
- *n++= '\\';
- o++;
- break;
- case '\'':
- *n++= '\\';
- *n++= '\'';
- o++;
- break;
- case '"':
- *n++= '\\';
- *n++= '"';
- o++;
- break;
- case '\032':
- *n++= '\\';
- *n++= 'Z';
- o++;
- break;
- default:
- *n++= *o++;
- }
- }
- *n = 0;
-#endif
+ mysql_real_escape_string(mdb->db, snew, old, len);
}
/*
* Submit a general SQL command (cmd), and for each row returned,
* the sqlite_handler is called with the ctx.
*/
-int db_sql_query(B_DB *mdb, char *query, DB_RESULT_HANDLER *result_handler, void *ctx)
+bool db_sql_query(B_DB *mdb, const char *query, DB_RESULT_HANDLER *result_handler, void *ctx)
{
SQL_ROW row;
-
+ bool send = true;
+
db_lock(mdb);
if (sql_query(mdb, query) != 0) {
- Mmsg(&mdb->errmsg, _("Query failed: %s: ERR=%s\n"), query, sql_strerror(mdb));
+ Mmsg(mdb->errmsg, _("Query failed: %s: ERR=%s\n"), query, sql_strerror(mdb));
db_unlock(mdb);
- return 0;
+ return false;
}
if (result_handler != NULL) {
- if ((mdb->result = sql_store_result(mdb)) != NULL) {
- int num_fields = sql_num_fields(mdb);
+ if ((mdb->result = sql_use_result(mdb)) != NULL) {
+ int num_fields = sql_num_fields(mdb);
+
+ /* We *must* fetch all rows */
+ while ((row = sql_fetch_row(mdb)) != NULL) {
+ if (send) {
+ /* the result handler returns 1 when it has
+ * seen all the data it wants. However, we
+ * loop to the end of the data.
+ */
+ if (result_handler(ctx, num_fields, row)) {
+ send = false;
+ }
+ }
+ }
+
+ sql_free_result(mdb);
+ }
+ }
+ db_unlock(mdb);
+ return true;
- while ((row = sql_fetch_row(mdb)) != NULL) {
- if (result_handler(ctx, num_fields, row))
- break;
- }
+}
- sql_free_result(mdb);
- }
+void my_mysql_free_result(B_DB *mdb)
+{
+ db_lock(mdb);
+ if (mdb->result) {
+ mysql_free_result(mdb->result);
+ mdb->result = NULL;
}
db_unlock(mdb);
- return 1;
+}
+int my_mysql_insert_autokey_record(B_DB *mdb, const char *query, const char *table_name)
+{
+ /*
+ * First execute the insert query and then retrieve the currval.
+ */
+ if (mysql_query(mdb->db, query)) {
+ return 0;
+ }
+
+ mdb->num_rows = sql_affected_rows(mdb);
+ if (mdb->num_rows != 1) {
+ return 0;
+ }
+
+ mdb->changes++;
+
+ return mysql_insert_id(mdb->db);
}
+
+#ifdef HAVE_BATCH_FILE_INSERT
+const char *my_mysql_batch_lock_path_query =
+ "LOCK TABLES Path write, batch write, Path as p write";
+
+
+const char *my_mysql_batch_lock_filename_query =
+ "LOCK TABLES Filename write, batch write, Filename as f write";
+
+const char *my_mysql_batch_unlock_tables_query = "UNLOCK TABLES";
+
+const char *my_mysql_batch_fill_path_query =
+ "INSERT INTO Path (Path) "
+ "SELECT a.Path FROM "
+ "(SELECT DISTINCT Path FROM batch) AS a WHERE NOT EXISTS "
+ "(SELECT Path FROM Path AS p WHERE p.Path = a.Path)";
+
+const char *my_mysql_batch_fill_filename_query =
+ "INSERT INTO Filename (Name) "
+ "SELECT a.Name FROM "
+ "(SELECT DISTINCT Name FROM batch) AS a WHERE NOT EXISTS "
+ "(SELECT Name FROM Filename AS f WHERE f.Name = a.Name)";
+#endif /* HAVE_BATCH_FILE_INSERT */
+
#endif /* HAVE_MYSQL */
projects / bacula / bacula / blobdiff