Tag Info

Hot answers tagged

6

The PURGE BINARY LOGS statement deletes all the binary log files listed in the log index file prior to the specified log file name or timestamp. Deleted log files also are removed from the list recorded in the index file, so that the given log file becomes the first in the list. I hope you have purged binary logs upto mysql-bin.000019 using command PURGE ...


5

There is no mysql option to ignore a table in binary log. If you could move the table to a separate database you might use binlog-ignore-db option, but this has its gotchas. You should understand how MySQL evaluates replication rules. If you can write a wrapper script to load the data instead of mysqlimport (the manpage says that it's a command line ...


5

It will be handled immediately on mysql startup. You do not have to wait for a mysql restart. First, set expire_logs_days to be 10 in /etc/my.cnf [mysqld] log-bin server-id=1 binlog-do-db=foodb1 binlog-do-db=foodb2 expire_logs_days=10 Next, log in to mysql and run this PURGE BINARY LOGS BEFORE (date(now()) + interval 0 second - interval 10 day); Note ...


3

Binary logs have different start positions upon the creation of a new binary log. In fact, a binary log position actual represents the numbers of bytes written in the binary at the end of the most recent SQL statement recorded. The following is the list of binary log starting positions for each major release of MySQL 5 For MySQL 5.5 : 107 For MySQL 5.1 : ...


3

The reason for this is pretty straightforward: if you are using InnoDB tables and the MySQL server processes a COMMIT statement, it writes the whole transaction to the binary log and then commits this transaction into InnoDB http://dev.mysql.com/doc/refman/5.5/en/binary-log.html In periods of moderate to low traffic, it's easy for the "last thing that ...


2

DISCLAIMER : Not a user of mha4mysql. SUGGESTION #1 Hang the Lag Slave off from the Standby Server. How? Step 01: Stop all Writes to the Master Step 02: Run SHOW MASTER STATUS; on the StandByMaster Step 03: Run mysqlbinlog against the binlog from Step 02 Step 04: Acquire timestamp from given position Step 05: Subtract 43200 sec (12 hrs) from the ...


2

4. I have no CRON which do some task auto magically I'll speculate that you actually do. Linux systems often use the logrotate utility to manage rotation of log files from numerous disparate subsystems. Distro builders love to coerce software installed from packages to Do Things The One True Way™ so it should not surprise you if they have "extended" MySQL ...


2

If you want to erase all binary logs older than 30 minutes, do this mysql> PURGE BINARY LOGS BEFORE NOW() - INTERVAL 30 MINUTE; If you want to erase all binary logs except the last one, do this mysql> PURGE BINARY LOGS BEFORE NOW(); If you want to erase all binary logs before midnight, do this mysql> PURGE BINARY LOGS BEFORE DATE(NOW()) + ...


1

You can see it like this, log_bin should not accept parameters, either you put: log_bin or nothing at all, as it is a boolean parameter. However, if a value is set, logs are enabled and the value interpreted as the binlog basename. Log options have a history of not being too intuitive, and changing its format from version to version (I am looking at ...


1

I do not understand why an application requires the MIXED replication format, as MIXED is equal to STATEMENT-based, but changing to ROW format when executing "unsafe" queries. So, a MIXED-compatible application should be compatible with both STATEMENT and ROW. As you can see here, if the the format detected (server-side) is ROW or MIXED, it tries to change ...


1

Rotate logs: mysql> FLUSH LOGS; [Re]move the old binary logs, all except the latest it's safe to remove.


1

I think you should re-initialize your replication. If the replication worked good, the rows should not be missing. That the rows are missing means there is some inconsistency between your master und your slave. I would not act on the assumption that this is the only error and if I'd fix it by hand everything is back fine again. Instead I would set up the ...


1

Don't use --short-form. You are suppressing much of what you want to see. --short-form Display only the statements contained in the log, without any extra information or row-based events. This is for testing only, and should not be used in production systems. — ...


1

These are interesting questions with answers that are not too easy to come by. The internal structures are sometimes not very well documented or the documentation is difficult to find and more than just a little bit frustrating. Part 1: table_id The table_id in a row-based replication TABLE_MAP_EVENT is not a value ordinarily exposed to the user, though ...


1

--base64-output=DECODE-ROWS --verbose This is the format you need to be using if you are reviewing the binlog manually... it extracts the maximum amount of useful data from the log... but it will help if you understand how binary logging works in MySQL, first. RDS (at least for MySQL 5.5 and 5.6) uses binlog_format = MIXED. This means the server may ...


1

The only possible work around is mentioned in the MySQL Documentation You can tell mysqlbinlog to suppress the BINLOG statements for row events by using the --base64-output=DECODE-ROWS option. This is similar to --base64-output=NEVER but does not exit with an error if a row event is found. The combination of --base64-output=DECODE-ROWS and --verbose ...


1

This works for me: (MySQL server version: 5.6.14) PURGE BINARY LOGS BEFORE NOW(); Removes all binary logs on my system.


1

I'm not sure if this is what happened to you but in my case MySQL had stopped "cycling" logs and the mysql-bin.index file had become "corrupted" with invalid binlog file entries. Specifically, the index file had started at mysql-bin.000001 and got to mysql-bin.000220 but then had somehow started again from 001. When I compared this to the files on my server ...


1

You have chain replication as Master--> SLAVE A--> SLAVE B (Slave A is Slave of Master and Slave B is slave of Slave A) As you told On Slave Server(A) binary log is enabled. You additionally need to enable log_slave_updates because a slave does not log to its own binary log any updates that are received from a master server. This option tells the ...


1

you can use --replicate-ignore-table=db_name.tbl_name See http://dev.mysql.com/doc/refman/5.1/en/replication-options-slave.html#option_mysqld_replicate-ignore-table for details.


1

There are four(4) things to look for to see if a binlog is corrupt on not: Binlog Magic Number Binlog Size mysqlbinlog MySQL Replication BINLOG MAGIC NUMBER Back on Dec 26, 2011, I wrote about a based-64 number that sits at the top of any binlog (hex value 0xfe 0x62 0x69 0x6e) regardless of MySQL version and regardless of binlog format ...


1

Whenever a Slave loses network connectivity, the IO thread simply dies and tries to reconnect every 60 seconds. You did the right thing in pointing the Slave back but let's clarify what to use to point back with. For the give SHOW SLAVE STATUS\G mysql> show slave status\G *************************** 1. row *************************** ...


1

You can give mysqlbinlog datetime stamps Here is a sample datadir folder [root@********* mysql]# ls -l /var/lib/mysql/mysql-bin.* -rw-rw---- 1 mysql mysql 1073742028 Aug 13 03:29 /var/lib/mysql/mysql-bin.003111 -rw-rw---- 1 mysql mysql 1073741943 Aug 15 13:37 /var/lib/mysql/mysql-bin.003112 -rw-rw---- 1 mysql mysql 434864318 Aug 16 16:00 ...


1

I had a very similar problem once. As you already mentioned the problem is to find a correct --start-position. I solved this by looking into the corrupt binlog-file with a hexeditor / xxd (to find some blocks zeroed out at the corrupt position in my case), skipping this obviously broken part of the binlog-file by looking for the next part where some useful ...


1

Since the binary log on the Master is corrupt, there is nothing else you can do. My condolences. Just skip to the next binlog: STOP SLAVE; CHANGE MASTER TO master_log_file='ibm-pr-slglcd-01.000076',master_log_pos=107; START SLAVE; Of course, 107 is the start position for MySQL 5.5 binlogs. If the Master is 5.1 (or 5.0.95), use 106. If the Master is prior ...



Only top voted, non community-wiki answers of a minimum length are eligible