MySQL switch the binlog and does not write Previous_gtids_log_event in binlog when something got wrong internel。
The slave will not go further and just switch relaylog forever.
And We restart MySQL manually, it Refuses to start because there is no Previous_gtids_log_event in binlog when in gtid-mode=on and enforce-gtid-consistency=true.


mysql error message of Refuses to start:
2013-11-29 15:09:38 19711 [Note] InnoDB: 5.6.14 started; log sequence number 198310756
/home/mysql/program/mysql-5.6.10-linux-glibc2.5-x86_64/bin/mysqld: The binary log file '/home/mysql/data/mysqldata56/binlog/mysql-bin.000006' is logically corrupted: The first global transaction identifier was read, but no other information regarding identifiers existing on the previous log files was found.
2013-11-29 15:09:42 19711 [ERROR] Aborting


mysqlbinlog -vvv mysql-bin.000005 ：
/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
/*!40019 SET @@session.max_insert_delayed_threads=0*/;
/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
DELIMITER /*!*/;
# at 4
#131127 20:28:09 server id 152  end_log_pos 120 CRC32 0xe5670aa8        Start: binlog v 4, server v 5.6.14-log created 131127 20:28:09
BINLOG '
WeWVUg+YAAAAdAAAAHgAAAAAAAQANS42LjE0LWxvZwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAEzgNAAgAEgAEBAQEEgAAXAAEGggAAAAICAgCAAAACgoKGRkAAagK
Z+U=
'/*!*/;
# at 120
#131127 20:28:09 server id 152  end_log_pos 231 CRC32 0xee64e34f        Previous-GTIDs
# 75b62a79-5710-11e3-ba96-3cd92bee36a8:1-1871,
# fbe495d2-5713-11e3-baad-94de80b47c01:1-75421
# at 231
#131127 20:23:47 server id 151  end_log_pos 279 CRC32 0x81331390        GTID [commit=yes]
SET @@SESSION.GTID_NEXT= 'fbe495d2-5713-11e3-baad-94de80b47c01:75422'/*!*/;
# at 279
#131127 20:23:47 server id 151  end_log_pos 347 CRC32 0x0c8a0ce5        Query   thread_id=76799 exec_time=1766  error_code=0
SET TIMESTAMP=1385555027/*!*/;
SET @@session.pseudo_thread_id=76799/*!*/;
SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=0, @@session.unique_checks=1, @@session.autocommit=1/*!*/;
SET @@session.sql_mode=524288/*!*/;
SET @@session.auto_increment_increment=2, @@session.auto_increment_offset=1/*!*/;
/*!\C latin1 *//*!*/;
SET @@session.character_set_client=8,@@session.collation_connection=8,@@session.collation_server=83/*!*/;
SET @@session.lc_time_names=0/*!*/;
SET @@session.collation_database=DEFAULT/*!*/;
BEGIN
/*!*/;
# at 347
#131127 20:23:47 server id 151  end_log_pos 466 CRC32 0x8ba831fe        Rows_query
# insert into qdata_miss_check (node_name, gmt_modified) values ('test12', '1385555093744205047')
# at 466
#131127 20:23:47 server id 151  end_log_pos 529 CRC32 0xe6ead181        Table_map: `test`.`qdata_miss_check` mapped to number 70
# at 529
#131127 20:23:47 server id 151  end_log_pos 584 CRC32 0x808ba4f2        Write_rows: table id 70 flags: STMT_END_F

BINLOG '
U+SVUh2XAAAAdwAAANIBAACAAF9pbnNlcnQgaW50byBxZGF0YV9taXNzX2NoZWNrIChub2RlX25h
bWUsIGdtdF9tb2RpZmllZCkgdmFsdWVzICgndGVzdDEyJywgJzEzODU1NTUwOTM3NDQyMDUwNDcn
Kf4xqIs=
U+SVUhOXAAAAPwAAABECAAAAAEYAAAAAAAEABHRlc3QAEHFkYXRhX21pc3NfY2hlY2sAAwMPCAJg
AACB0erm
U+SVUh6XAAAANwAAAEgCAAAAAEYAAAAAAAEAAgADB/gNCQAABnRlc3QxMvc8W0sEezoT8qSLgA==
'/*!*/;
### INSERT INTO `test`.`qdata_miss_check`
### SET
###   @1=2317 /* INT meta=0 nullable=0 is_null=0 */
###   @2='test12' /* VARSTRING(96) meta=96 nullable=0 is_null=0 */
###   @3=1385555093744205047 /* LONGINT meta=0 nullable=0 is_null=0 */
# at 584
#131127 20:23:47 server id 151  end_log_pos 615 CRC32 0x51e1e4ee        Xid = 1501
COMMIT/*!*/;
# at 615

......

# at 7779914
#131127 23:00:10 server id 151  end_log_pos 7779962 CRC32 0xf21bbe51    GTID [commit=yes]
SET @@SESSION.GTID_NEXT= 'fbe495d2-5713-11e3-baad-94de80b47c01:95235'/*!*/;
# at 7779962
#131127 23:00:10 server id 151  end_log_pos 7780030 CRC32 0xef045fda    Query   thread_id=97036 exec_time=260   error_code=0
SET TIMESTAMP=1385564410/*!*/;
/*!\C latin1 *//*!*/;
SET @@session.character_set_client=8,@@session.collation_connection=8,@@session.collation_server=83/*!*/;
BEGIN
/*!*/;
# at 7780030
#131127 23:00:10 server id 151  end_log_pos 7780149 CRC32 0xd2f7a66d    Rows_query
# insert into qdata_miss_check (node_name, gmt_modified) values ('test12', '1385564477328364700')
# at 7780149
#131127 23:00:10 server id 151  end_log_pos 7780212 CRC32 0xb42577fb    Table_map: `test`.`qdata_miss_check` mapped to number 82
# at 7780212
#131127 23:00:10 server id 151  end_log_pos 7780267 CRC32 0x076dd296    Write_rows: table id 82 flags: STMT_END_F

BINLOG '
+giWUh2XAAAAdwAAADW3dgCAAF9pbnNlcnQgaW50byBxZGF0YV9taXNzX2NoZWNrIChub2RlX25h
bWUsIGdtdF9tb2RpZmllZCkgdmFsdWVzICgndGVzdDEyJywgJzEzODU1NjQ0NzczMjgzNjQ3MDAn
KW2m99I=
+giWUhOXAAAAPwAAAHS3dgAAAFIAAAAAAAEABHRlc3QAEHFkYXRhX21pc3NfY2hlY2sAAwMPCAJg
AAD7dyW0
+giWUh6XAAAANwAAAKu3dgAAAFIAAAAAAAEAAgADB/gZAQAABnRlc3QxMpyUjhSNgzoTltJtBw==
'/*!*/;
### INSERT INTO `test`.`qdata_miss_check`
### SET
###   @1=281 /* INT meta=0 nullable=0 is_null=0 */
###   @2='test12' /* VARSTRING(96) meta=96 nullable=0 is_null=0 */
###   @3=1385564477328364700 /* LONGINT meta=0 nullable=0 is_null=0 */
# at 7780267
#131127 23:00:10 server id 151  end_log_pos 7780298 CRC32 0x8dae3673    Xid = 50491
COMMIT/*!*/;
SET @@SESSION.GTID_NEXT= 'AUTOMATIC' /* added by mysqlbinlog */ /*!*/;
# at 7780298
#131127 23:04:30 server id 152  end_log_pos 7780345 CRC32 0x00060677    Rotate to mysql-bin.000006  pos: 4
DELIMITER ;
# End of log file
ROLLBACK /* added by mysqlbinlog */;
/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;


you can see: it contain  Previous-GTIDs event in the begining of mysql.


but in mysql-bin.000006, it has no Previous-GTIDs.
mysqlbinlog -vvv mysql-bin.000006：
/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
/*!40019 SET @@session.max_insert_delayed_threads=0*/;
/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
DELIMITER /*!*/;
# at 4
#131127 23:04:30 server id 152  end_log_pos 120 CRC32 0x12cb8a7b        Start: binlog v 4, server v 5.6.14-log created 131127 23:04:30
BINLOG '
/gmWUg+YAAAAdAAAAHgAAAAAAAQANS42LjE0LWxvZwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAEzgNAAgAEgAEBAQEEgAAXAAEGggAAAAICAgCAAAACgoKGRkAAXuK
yxI=
'/*!*/;
# at 120
#131127 23:00:11 server id 151  end_log_pos 168 CRC32 0xae62077a        GTID [commit=yes]
SET @@SESSION.GTID_NEXT= 'fbe495d2-5713-11e3-baad-94de80b47c01:95236'/*!*/;
# at 168
#131127 23:00:11 server id 151  end_log_pos 236 CRC32 0x50455080        Query   thread_id=97037 exec_time=260   error_code=0
SET TIMESTAMP=1385564411/*!*/;
SET @@session.pseudo_thread_id=97037/*!*/;
SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=0, @@session.unique_checks=1, @@session.autocommit=1/*!*/;
SET @@session.sql_mode=524288/*!*/;
SET @@session.auto_increment_increment=2, @@session.auto_increment_offset=1/*!*/;
/*!\C latin1 *//*!*/;
SET @@session.character_set_client=8,@@session.collation_connection=8,@@session.collation_server=83/*!*/;
SET @@session.lc_time_names=0/*!*/;
SET @@session.collation_database=DEFAULT/*!*/;
BEGIN
/*!*/;
# at 236
#131127 23:00:11 server id 151  end_log_pos 355 CRC32 0xa79cdebb        Rows_query
# insert into qdata_miss_check (node_name, gmt_modified) values ('test12', '1385564477835241342')
# at 355
#131127 23:00:11 server id 151  end_log_pos 418 CRC32 0x67604bdf        Table_map: `test`.`qdata_miss_check` mapped to number 84
# at 418
#131127 23:00:11 server id 151  end_log_pos 473 CRC32 0xc512a20d        Write_rows: table id 84 flags: STMT_END_F

BINLOG '
+wiWUh2XAAAAdwAAAGMBAACAAF9pbnNlcnQgaW50byBxZGF0YV9taXNzX2NoZWNrIChub2RlX25h
bWUsIGdtdF9tb2RpZmllZCkgdmFsdWVzICgndGVzdDEyJywgJzEzODU1NjQ0Nzc4MzUyNDEzNDIn
KbvenKc=
+wiWUhOXAAAAPwAAAKIBAAAAAFQAAAAAAAEABHRlc3QAEHFkYXRhX21pc3NfY2hlY2sAAwMPCAJg
AADfS2Bn
+wiWUh6XAAAANwAAANkBAAAAAFQAAAAAAAEAAgADB/gbAQAABnRlc3QxMn7nxDKNgzoTDaISxQ==
'/*!*/;
### INSERT INTO `test`.`qdata_miss_check`
### SET
###   @1=283 /* INT meta=0 nullable=0 is_null=0 */
###   @2='test12' /* VARSTRING(96) meta=96 nullable=0 is_null=0 */
###   @3=1385564477835241342 /* LONGINT meta=0 nullable=0 is_null=0 */
# at 473
#131127 23:00:11 server id 151  end_log_pos 504 CRC32 0x2dfb90be        Xid = 50494
COMMIT/*!*/;


the error message of switch the binlog :

Status information:

Current dir: /home/mysql/data/mysqldata56/mydata/
Running threads: 17  Stack size: 262144
Current locks:
lock: 0x7f32e400ee80:

lock: 0x7f330c2364c0:

lock: 0x7f330c0214a0:

lock: 0x1d9f9a30:

lock: 0x1d907f00:

lock: 0x1d913dc0:

lock: 0x1d8ab740:

lock: 0x1d8ff310:

lock: 0x1d8f3940:

lock: 0x1d8d7f60:

lock: 0x1d8e5e70:

lock: 0x1d8c4440:

lock: 0x1d8bcb80:

lock: 0x1d8b46c0:

lock: 0x135f420:

lock: 0x135f340:

lock: 0x135e380:

lock: 0x135e2a0:

lock: 0x135e1c0:

lock: 0x135e540:

lock: 0x135c780:

lock: 0x135f260:

lock: 0x135ce80:

lock: 0x135d120:

lock: 0x135cda0:

lock: 0x135d040:

lock: 0x135ccc0:

lock: 0x135cf60:

lock: 0x135d660:

lock: 0x135d580:

lock: 0x135d4a0:

lock: 0x135cbe0:

lock: 0x135c940:

lock: 0x135cb00:

lock: 0x135c860:

lock: 0x135ca20:

lock: 0x135d3c0:

lock: 0x135d2e0:

lock: 0x135d200:

lock: 0x135eee0:

lock: 0x135f180:

lock: 0x135f0a0:

lock: 0x135efc0:

lock: 0x135eb60:

lock: 0x135ea80:

lock: 0x135e9a0:

lock: 0x135e8c0:

lock: 0x135e7e0:

lock: 0x135ed20:

lock: 0x135e700:

lock: 0x135e620:

lock: 0x135ec40:

lock: 0x135e460:

lock: 0x135e000:

lock: 0x135e0e0:

lock: 0x135df20:

lock: 0x135de40:

lock: 0x135dac0:

lock: 0x135dd60:

lock: 0x135dc80:

lock: 0x135d9e0:

lock: 0x135dba0:

lock: 0x135d900:

lock: 0x135d820:

lock: 0x135d740:

lock: 0x135ee00:


Key caches:
default
Buffer_size:       8388608
Block_size:           1024
Division_limit:        100
Age_limit:             300
blocks used:             0
not flushed:             0
w_requests:              0
writes:                  0
r_requests:              0
reads:                   0


handler status:
read_key:        39291
read_next:           0
read_rnd          2258
read_first:       1272
write:          118480
delete               0
update:          38000

Table status:
Opened tables:        113
Open tables:           82
Open files:            22
Open streams:           0

Alarm status:
Active alarms:   0
Max used alarms: 0
Next alarm time: 0



Events status:
LLA = Last Locked At  LUA = Last Unlocked At
WOC = Waiting On Condition  DL = Data Locked

Event scheduler status:
State      : INITIALIZED
Thread id  : 0
LLA        : n/a:0
LUA        : n/a:0
WOC        : NO
Workers    : 0
Executed   : 0
Data locked: NO

Event queue status:
Element count   : 0
Data locked     : NO
Attempting lock : NO
LLA             : init_queue:139
LUA             : init_queue:149
WOC             : NO
Next activation : never
2013-11-27 23:04:30 1419 [Warning] 'proxies_priv' entry '@ root@test2' ignored in --skip-name-resolve mode.


may be some internal thread of mysql has crash and restart, but it still run instead of shutdown itself.
The slave of it will switch relaylog and not replicate any thing after mysql-bin.000005.