mysqlbinlog使用记录
首先要确认mysql启用了binlog功能。一般默认启用。
mysql> select @@log_bin;
+-----------+
| @@log_bin |
+-----------+
| 1 |
+-----------+然后确认binlog目录
mysql> select @@log_bin_basename;
+----------------------------+
| @@log_bin_basename |
+----------------------------+
| /data/mysql/data/mysql-bin |
+----------------------------+
1 row in set (0.20 sec)再确认binlog格式，一般都是ROW
mysql> select @@binlog_format;
+-----------------+
| @@binlog_format |
+-----------------+
| ROW |
+-----------------+
1 row in set (0.24 sec)查看下当前的binlog文件。最后一个。
mysql> show master status;
+------------------+-----------+--------------+------------------+------------------------------------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+-----------+--------------+------------------+------------------------------------------------+
| mysql-bin.000162 | 508947599 | | | 8c6a1022-2488-11ee-823a-fa163e4f0fbf:1-1706820 |
+------------------+-----------+--------------+------------------+------------------------------------------------+
1 row in set (0.19 sec)查看binlog清单。
mysql> show master logs;
+------------------+------------+-----------+
| Log_name | File_size | Encrypted |
+------------------+------------+-----------+
| mysql-bin.000097 | 1267374431 | No |
| mysql-bin.000098 | 1078842954 | No |
| mysql-bin.000099 | 1076402277 | No |
| mysql-bin.000100 | 1074662461 | No |
| mysql-bin.000101 | 1129645727 | No |
| mysql-bin.000102 | 1073854117 | No |
| mysql-bin.000103 | 1076120021 | No |
| mysql-bin.000104 | 1163004975 | No |
| mysql-bin.000105 | 1080999999 | No |
| mysql-bin.000106 | 1123681007 | No |
| mysql-bin.000107 | 1096492121 | No |
| mysql-bin.000108 | 1080796650 | No |
| mysql-bin.000109 | 1074606514 | No |
| mysql-bin.000110 | 1094934164 | No |
| mysql-bin.000111 | 1075325447 | No |
| mysql-bin.000112 | 1204392658 | No |
| mysql-bin.000113 | 1180372937 | No |
| mysql-bin.000114 | 1196526678 | No |
| mysql-bin.000115 | 1238177050 | No |
| mysql-bin.000116 | 1074988755 | No |
| mysql-bin.000117 | 1091344404 | No |
| mysql-bin.000118 | 1076183240 | No |
| mysql-bin.000119 | 1081950716 | No |
| mysql-bin.000120 | 1109171293 | No |
| mysql-bin.000121 | 1101011874 | No |
| mysql-bin.000122 | 1218723442 | No |
| mysql-bin.000123 | 1183060961 | No |
| mysql-bin.000124 | 1106412574 | No |
| mysql-bin.000125 | 1250171532 | No |
| mysql-bin.000126 | 1078337881 | No |
| mysql-bin.000127 | 1076340326 | No |
| mysql-bin.000128 | 1073886411 | No |
| mysql-bin.000129 | 1073771450 | No |
| mysql-bin.000130 | 1073763024 | No |
| mysql-bin.000131 | 1073754658 | No |
| mysql-bin.000132 | 1073765124 | No |
| mysql-bin.000133 | 1073758960 | No |
| mysql-bin.000134 | 1167060782 | No |
| mysql-bin.000135 | 1190829992 | No |
| mysql-bin.000136 | 1096377082 | No |
| mysql-bin.000137 | 1074835535 | No |
| mysql-bin.000138 | 1097946487 | No |
| mysql-bin.000139 | 1079454725 | No |
| mysql-bin.000140 | 1073757655 | No |
| mysql-bin.000141 | 1187881785 | No |
| mysql-bin.000142 | 1096423858 | No |
| mysql-bin.000143 | 1233191324 | No |
| mysql-bin.000144 | 1080399415 | No |
| mysql-bin.000145 | 1207148115 | No |
| mysql-bin.000146 | 1211077714 | No |
| mysql-bin.000147 | 1155530016 | No |
| mysql-bin.000148 | 1141697366 | No |
| mysql-bin.000149 | 1104053983 | No |
| mysql-bin.000150 | 1181112005 | No |
| mysql-bin.000151 | 1136589759 | No |
| mysql-bin.000152 | 1077718940 | No |
| mysql-bin.000153 | 1148381060 | No |
| mysql-bin.000154 | 1185805639 | No |
| mysql-bin.000155 | 1073741887 | No |
| mysql-bin.000156 | 1104320103 | No |
| mysql-bin.000157 | 1088572221 | No |
| mysql-bin.000158 | 1076297985 | No |
| mysql-bin.000159 | 1232823373 | No |
| mysql-bin.000160 | 1213815833 | No |
| mysql-bin.000161 | 1122061331 | No |
| mysql-bin.000162 | 510032311 | No |
+------------------+------------+-----------+确认下binlog的文件
[iwhalecloud@apaas-mid1 data]$ ls
apaas-mid1.log app_5195062153216_default_dev app_d_1004304311066894336_dev app_d_1010718326218174464_dev app_d_1011464263104589824_dev app_d_1016624577895215104_dev app_d_1027753803562999808_dev ca.pem mysql-bin.000107 mysql-bin.000133 mysql-bin.000159
app_0171769606782976_test_dev app_587242401792_default_test app_d_1004305219343425536_dev app_d_1010790433914744832_dev app_d_1011468334553231360_dev app_d_1016630849134669824_dev app_d_1027834867983568896_dev client-cert.pem mysql-bin.000108 mysql-bin.000134 mysql-bin.000160
app_039531520_testappdemo_dev app_618118144_zerocode_db_dev app_d_1004305335215267840_dev app_d_1010810408964583424_dev app_d_1011475911693430784_dev app_d_1016874600214048768_dev app_d_1031846359492018176_dev client-key.pem mysql-bin.000109 mysql-bin.000135 mysql-bin.000161
app_1154719241531392_utf8_dev app_624027447296_default_test app_d_1004305483873984512_dev app_d_1010817221210533888_dev app_d_1011512375550537728_dev app_d_1017310111265206272_dev app_d_1032242791453638656_dev fastflow mysql-bin.000110 mysql-bin.000136 mysql-bin.000162
app_1189251336433664_jdxt_dev app_6488617971712_shucun_test app_d_1004326979078004736_dev app_d_1010825204518744064_dev app_d_1011538998677073920_dev app_d_1018337333302321152_dev app_d_1033622580274925568_dev '#ib_16384_0.dblwr' mysql-bin.000111 mysql-bin.000137 mysql.ibd
app_127492251648_default_test app_659885162496_default_test app_d_1005737741596581888_dev app_d_1010832101951008768_dev app_d_1011575392178925568_dev app_d_1018338118778019840_dev app_d_1033625372782837760_dev '#ib_16384_1.dblwr' mysql-bin.000112 mysql-bin.000138 mysql_upgrade_info
app_138032611328_default_test app_666318913536_default_test app_d_1005738777421897728_dev app_d_1010907921470058496_dev app_d_1011575553651240960_dev app_d_1018340928600989696_dev app_d_1033983426992881664_dev ib_buffer_pool mysql-bin.000113 mysql-bin.000139 performance_schema
app_174031101952_default_test app_6845819412480_default_dev app_d_1005739158608633856_dev app_d_1010908254564904960_dev app_d_1011827666318913536_dev app_d_1018412911153754112_dev app_d_1034827970723319808_dev ibdata1 mysql-bin.000114 mysql-bin.000140 private_key.pem
app_1945102188544_default_dev app_709634650112_default_test app_d_1005739257745203200_dev app_d_1010908346898313216_dev app_d_1012278439994707968_dev app_d_1018687570684260352_dev app_d_1034828040540999680_dev ibtmp1 mysql-bin.000115 mysql-bin.000141 public_key.pem
app_1945102188569_laodian_dev app_725581508608_test_tt1_dev app_d_1005739323465752576_dev app_d_1010924624027447296_dev app_d_1012278563198193664_dev app_d_1019055184992382976_dev app_d_1036464803857166336_dev '#innodb_redo' mysql-bin.000116 mysql-bin.000142 server-cert.pem
app_195062153216_default_test app_791453638656_default_test app_d_1006012396081340416_dev app_d_1011079920993562624_dev app_d_1013338123723853824_dev app_d_1019873200897794048_dev app_d_1036519544385974272_dev '#innodb_temp' mysql-bin.000117 mysql-bin.000143 server-key.pem
app_196571193344_default_test app_816690434048_default_test app_d_1006122233230352384_dev app_d_1011104587242401792_dev app_d_1013338201851154432_dev app_d_1023842551653220352_dev app_d_1036519946628116480_dev lcdp mysql-bin.000118 mysql-bin.000144 sys
app_2138032611328_default_dev app_8227738279612416_test_dev app_d_1006132308405739520_dev app_d_1011106345658216448_dev app_d_1013338422039531520_dev app_d_1024219997648994304_dev app_d_1037656375662415872_dev lcdp_erm mysql-bin.000119 mysql-bin.000145 undo_001
app_218821236633600_db_sq_dev app_825204518744064_test1_dev app_d_1006446232452059136_dev app_d_1011149288259579904_dev app_d_1013358153484193792_dev app_d_1024231818401431552_dev app_d_1040171117312413696_dev lcdp_run mysql-bin.000120 mysql-bin.000146 undo_002
app_227738279612416_test_test app_847371726848_default_test app_d_1006448431248822272_dev app_d_1011164197059948544_dev app_d_1014489244858773504_dev app_d_1024232357008785408_dev app_od_974142457073610752_dev master-bin.index mysql-bin.000121 mysql-bin.000147 zzh_map_demo
app_233230352384_default_test app_86488617971712_shucun_dev app_d_1006457700924903424_dev app_d_1011166023419293696_dev app_d_1014528247108661248_dev app_d_1024565990860390400_dev app_od_975232884835905536_dev mysql mysql-bin.000122 mysql-bin.000148 zzh_map_demo2
app_233238469062656_test_test app_9233238469062656_test_dev app_d_1006458292971884544_dev app_d_1011167920884674560_dev app_d_1014805207286214656_dev app_d_1024566471858978816_dev app_od_978592102489714688_dev mysql-bin.000097 mysql-bin.000123 mysql-bin.000149
app_308405739520_default_test app_945102188544_default_test app_d_1006459888120221696_dev app_d_1011177196571193344_dev app_d_1014827357393055744_dev app_d_1024572042514006016_dev app_od_978825127492251648_dev mysql-bin.000098 mysql-bin.000124 mysql-bin.000150
app_3238079225856_default_dev app_979078004736_default_test app_d_1006460401544974336_dev app_d_1011189251336433664_dev app_d_1014834673609797632_dev app_d_1024572572867506176_dev app_od_999137055907729408_dev mysql-bin.000099 mysql-bin.000125 mysql-bin.000151
app_335215267840_default_test app_98871352568696832_ddd_dev app_d_1006460812259610624_dev app_d_1011191239532998656_dev app_d_1014837617249759232_dev app_d_1024573190734086144_dev app_od_999244520643506176_dev mysql-bin.000100 mysql-bin.000126 mysql-bin.000152
app_396081340416_default_test app_9962294104064_default_dev app_d_1006751033644433408_dev app_d_1011204323920179200_dev app_d_1016166193735675904_dev app_d_1024579370265620480_dev app_od_999244709634650112_dev mysql-bin.000101 mysql-bin.000127 mysql-bin.000153
app_408964583424_default_test app_d_1004300925747666944_dev app_d_1006755011660759040_dev app_d_1011205372915609600_dev app_d_1016186488617971712_dev app_d_1024579487827230720_dev app_sc_prod mysql-bin.000102 mysql-bin.000128 mysql-bin.000154
app_4623921942528_default_dev app_d_1004301437498892288_dev app_d_1007182270792089600_dev app_d_1011220072671866880_dev app_d_1016198049780740096_dev app_d_1024580960116015104_dev app_st_993335847371726848_dev mysql-bin.000103 mysql-bin.000129 mysql-bin.000155
app_4689726349312_default_dev app_d_1004302221812768768_dev app_d_1009283816690434048_dev app_d_1011435482344189952_dev app_d_1016218821236633600_dev app_d_1024582367277088768_dev app_szxc mysql-bin.000104 mysql-bin.000130 mysql-bin.000156
app_488617971712_default_test app_d_1004302307896664064_dev app_d_1010401188190236672_dev app_d_1011438016030961664_dev app_d_1016591945580949504_dev app_d_1024592473556127744_dev auto.cnf mysql-bin.000105 mysql-bin.000131 mysql-bin.000157
app_512927195136_default_test app_d_1004304082401828864_dev app_d_1010436753635815424_dev app_d_1011459951754342400_dev app_d_1016615229982781440_dev app_d_1027746486259798016_dev ca-key.pem mysql-bin.000106 mysql-bin.000132 mysql-bin.000158
binlog是二进制文件，直接用文本解析会存在一些乱码。使用mysqlbinlog工具处理后在可以正常读取。mysqlbinlog工具一般安装mysql的时候会默认安装。
mysqlbinlog --base64-output=DECODE-ROWS --start-datetime='2023-11-20 09:00:00' --stop-datetime='2023-11-20 11:00:00' /data/mysql/data/mysql-bin.000161 > mysqllog5.log其中由于格式是ROW格式，如果直接导出，执行的sql语句会变成类似base64加密后格式样式。
所以追加了 --base64-output=DECODE-ROWS，就是为了转换成明文sql。
其他的start-datetime什么的都好理解，就不在说明了。
如果输出文件显示，应该是没有符合条件的数据。例如下面这个就是由于对应binlog的文件中不包含指定时间段的数据导致的。这时可以切换binlog目录测试。简单点看一下输出文件大小就可以知道是否包含有效数据了。
# The proper term is pseudo_replica_mode, but we use this compatibility alias
# to make the statement usable on server versions 8.0.24 and older.
/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
DELIMITER /*!*/;
SET @@SESSION.GTID_NEXT= 'AUTOMATIC' /* added by mysqlbinlog */ /*!*/;
DELIMITER ;
# End of log file
/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
上图就是没有数据的文件大小，不足1k。
log4和log5条件一致，不过log5把ROW解码了，所以文件小了非常多。--base64-output=DECODE-ROWS就是这个的作用。