mysqlbinlog : Utility for Processing Binary Log and Relay Logs

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Contradictory reports from MySQL that a binlog file exists

Our replication recently stopped working. I submitted a question but was unsuccessful in fixing the problem (Error 1236 - "Could not find first log file name in binary log index file"). ...
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Partial mysqlbinlog on latest binlog file

I'm trying to do a partial mysqlbinlog on the latest binary log file at a certain position therein (trying to extract just one query). mysqlbinlog --start-position=1234 --stop-position=1234 /var/lib/...
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Mysql master slave communication

I was just working on mysql master-slave setup for incremental data backup from master to slave. For that I have to enable "bin log" in the master machine. So my doubt is how does master and slave ...
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Can I remove binary log files not listed in mysql-bin.index?

We've had some problems with one of our more elderly MySQL servers (version 5.045). The database is back up and running OK but there were over twenty thousand binary log files in the mysql folder. I ...
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MySQL binary log reporting execution time as UINT_MAX

Looking through the MySQL Binlogs, I see some data that just does not make sense. There are queries that say they have been running for 4294967295 seconds (which also happens to be UINT_MAX on this ...
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1answer
25 views

How to restore truncated MySQL table from binary logs?

I have a mysql server and while working on it I accidentlly truncated the wrong table. I do have a mysql dump wich I immediately used to restore my database structure, but I still miss some entries in ...
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11 views

Using MySQL bin logger to log a table insert with join

I am using Maxwell to listen to MySQL bin logger and it is working perfectly fine. I am able to listen to insert queries but i was wondering if i can get columns of the foreign keys ( i.e join)? I ...
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91 views

MySQL Error wth Relay logs - Could not open relay logs file for logging

We are receiving the following error. 2016-03-08 15:32:09 1184 [ERROR] MYSQL_BIN_LOG::move_crash_safe_index_file_to_index_file failed to move crash_safe_index_file to index file. 2016-03-08 15:32:09 ...
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48 views

Is it safe to sync MySQL binlogs?

I am working on a strategy to replicate my MySQL binlogs to Amazon s3. I have looked into mysqlbinlog --remote-server but it seems like adding a file watcher on /var/log/mysql which triggers an aws ...
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1answer
61 views

why my MySQL binary log file size is so small?

I have a lot of small binary log files , each of them just only 126 Bytes -rw-rw----. 1 mysql mysql 126 Jan 6 16:13 mysql-bin.000001 -rw-rw----. 1 mysql mysql 126 Jan 6 16:16 mysql-bin.000002 -rw-...
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8 views

MySQL Binary logs

I want script which will ensure that the binary log will be written to all the slave then only it will purge that binary Log from master. E:G I have One master and two slave.For some reason one of ...
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131 views

Size of Binary log file in Mysql Replication

I have a master - server replication setup in Linux servers. Master Configuration details : MySQL version is 5.1 and replication mode is MIXED type. Slave Configuration details : MySQL version ...
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49 views

Can i install mysqlbinlog 3.4 standalone?

I'm running several Linux servers (RHEL & Debian families) with Mysql 5.5 which ships with mysqlbinlog 3.3. I'd like to utilize the new --raw and --stop-never features of mysqlbinlog 3.4 without ...
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events not getting completely written in binary log file MySQL 5.0.32

referring this question : Records not getting replicate from Mysql 5.5.32 to MySQL 5.6 i found that binary log files which has been created at master database server , i see following surprising ...
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1answer
52 views

Binary log backups in MySQL

I'm running a master-master replication with read-only second master. Now since my binary logs are not getting replicated in my passive master. Should I need to enable --log-slave-updates? If I ...
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53 views

Amazon RDS use mysqbinlog error “Could not find first log file name in binary log ”

We use RDS at AWS to manage our MySQL database, and EC2 for our web application server. I know that RDS creates binary logs used for replication.. and I use "SHOW BINARY LOGS;" check all available bin ...
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1answer
99 views

mysqlbinlog: unknown variable ssl_key or ssl_cert or ssl_ca

I am trying to recover binlog from a remote server using mysqlbinlog client program, however it appears that mysqlbinlog doesn't recognize the SSL options that's required to establish SSL connect to ...
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11 views

Binlogs in MySQL are created too frequently, how to solve this issue?

We are using MYISAM storage engine in a Master-Master replication environment. The number of binlogs which is to be generated regularly is getting very high count despite setting binlog size of 1.6GB, ...
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1answer
823 views

How can I parse mysql bin log file for statements (Row/Mixed Format)

I have a mysql database running with binary log enabled. Unfortunately, a statement was executed by the client, which turned out erroneous. Since a number of records have been "affected", I want to ...
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Mysql binlog warnings [closed]

My system happens to write a lot of unsafe statements to the binlog and the result is a lot of IO wasted. I found that turning the warnings off in the log fixes the problem but i was wondering if ...
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1answer
590 views

How do I get the MySQL binary log coordinates from the binary files?

I'm attempting to set up replication for a large (120 GB) MySQL database and I messed up. I shut down the master, copied the data files, and restarted the master. Now I've set up the slave & ...
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1answer
147 views

MySQL binlog limitations

I have a MySQL instance running on AWS, with around 5000 inserts per second. Any idea what the performance impact will be if I use binlog (row) and a binlog tailer? Check this link From my ...
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707 views

Show sql statements from mysql binlog (GTID)

I have mysql binlogs for replication through GTID. I'm trying to show executed update/insert statements like this: mysqlbinlog --base64-output=DECODE-ROWS mysql-bin.000024 But all I see is ...
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175 views

Why is restoration from binary logs so slow?

We have a MySQL 5.5 server with binary logging enabled and a backup script that collects the binary logs and, once a day, generates a complete database dump with mysqldump. In testing database ...
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1answer
515 views

Shell script for backup binlog files for every 8 hours in MySQL

I'm writing a shell script for point in time recovery for MySQL Instance. Our requirement is backing up Binlog for every 8 Hours (Daily 3 times) using mysqlbinlog and it should backup binlog starting ...
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1answer
1k views

Hi disk I/O and crash when turning on sync_binlog in MySQL

I have a MySQL master server (MariaDB 10.0.17) that have a very odd behavior. It has one slave fetching data from it. When I set global sync_binlog = 1, the server I/O goes very high and after some ...
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what will happen to the binary log if it reaches its maximum value ? Does it reset to mysql-bin.00001 again?

what will happen to the binary log if it reaches its maximum value ? Does it reset to mysql-bin.00001 again ? I know the below points exist means, there won't be any reset happen in binlogs. I ...
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1answer
378 views

Is it possible to gain the precise position of a live mysql database when performing full backup

I have a production database that I usually run fullbackups on once every week. I have bin logs turned on for incremental backups. The production server is on the west coast while business hours are ...
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1answer
685 views

How to track only DDL statements executed in MySQL

Can we track only executed DDL statements in MySQL but not DML statements. I dont want to use either binlog/general log to enable. I just wanted to track only DDL statements. I had gone through the ...
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415 views

mysqlbinlog recovery table wise

I am going to restore my MySQL database table using log files. My database name is "decsys" . I have already created sql using log files C:\wamp\bin\mysql\mysql5.5.8\bin>mysqlbinlog -d decsys C:\...
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1answer
56 views

Is there any drawback of MIXED replication mode?

So, recent mysql server allows three types of replication mode: STATEMENT, ROW, MIXED. They all have pros/cons, and I pick the mode according to site characteristics. When I get a replication error I ...
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1answer
386 views

Myloader command: Table doesn't exist

I took the backup of mysql database using mydumper command: mydumper -B mydb -o /backup/oct3 -s 500000 -c -m -S /tmp/mysql.sock -u root -p password@123 -v 3 Now, I am restoring mysql database ...
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Restoring MySQL Tables from .ibd, .frm and mysqllogbin files

For some reason, when I try to open up my tables that are stored in .frm and .ibd files (whether on MySQL or phpmyadmin) it gives me a syntax error or it says it does not exist. I've read the other ...
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restore using mysqlbinlog failing

While doing restore from a MySQL binary log file, it is failing with the following error . mysqlbinlog mysql-bin.000036 | mysql -u root -p asdb ERROR 1032 (HY000) at line 48: Can't find record in '...
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575 views

Abnormally high MySQL writes and larger than normal Binary Log files. How can I determine what caused this?

We have a MySQL master database which replicates to a MySQL slave. We were experiencing issues where MySQL was showing a high number of writes (but not an increased number of queries being ran) for a ...
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1answer
911 views

Replication - Binary log parsing(Tableid generation, ON DELETE CASCADE handling, Changed columns for update event)

I am using MySQL 5.5 with InnoDB engine. I have set binlog format as row-based replication. I have some doubts regarding replication: 1) How is the tableID generated? Is it stored somewhere? 2) ...
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1answer
430 views

Incremental MySQL restore using binlogs

I've tried to restore a MySQL database using incremental binlogs and mysqlbinlog tool but I received the following message: ERROR 1666 (HY000) at line 30: Cannot execute statement: impossible to ...
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5k views

MySQL : Extract SQL statements from binlog

I am trying the following command to extract SQL statements from binlog for using it in another database (Amazon RDS) mysqlbinlog /var/lib/mysql/binlog.000027 --start-position=54375264 --base64-...
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214 views

Get missed transactions from slave

I'm trying to write a disaster recovery plan, I have one way replication with 1 master(A) and 3 slaves(B,C,D) A /|\ / | \ B C D Let's say my master crash, and I loose all data on ...
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Why do the MySQL bin log files still exist after a purge or flush?

I've used PURGE BINARY LOGS as well as FLUSH LOGS, but the mysql directory still contains these files: mysql-bin.000025 mysql-bin.000024 mysql-bin.000023 mysql-bin.000022 mysql-bin.000021 mysql-bin....
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1answer
530 views

Mysqlbinlog statement reading

I am trying to perform a point in time on a specific database using a snapshot and mysql's transaction logs. I am using the following to pull statements from the time of the snapshot to the time of ...
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1answer
748 views

Is it possible to convert mysql binlog from statement format to row format?

The mysql server online is of version 4.1, which doesn't support row-based binary log. Nevertheless, I need the row-based binlog. Can I use the binlog generated by old mysql and import it into another ...
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865 views

MySQL bin log missing data?

I'm trying to make heads and tails of my binary logs and am coming up short. I have many entries similar to the following from mysqlbinlog but I'm missing log data that I know should be there. # at ...
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347 views

MySQL binary log failed to generate a new one

In my Linux standalone machine, I have set up MySQL on it. In my.cnf, I have the following cofiguration: [mysqld] log-bin=mysql-bin binlog_format=mixed expire_logs_days = 10 max_binlog_size = 100M ...