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353 views

Problem with MySQL Master/Slave reboot when in replication

There is a master and number of slaves connected to it. Due to some patches, we have to Reboot the Master and Slave. Afterwards, we have to make sure replication is running fine. While doing this ...
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1answer
149 views

Mysql Forcing close of thread 946 user

My mysql box keeping shutting down and up. Below is snippet of the log file. There is quite a number of places I notice this Forcing close of thread 946 user: 130426 12:36:28 [Note] Event Scheduler: ...
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1answer
76 views

mysql freeze/crash on JOIN

here is query: SELECT nw.news_id, nw.title, nw.description, nw.url, nw.date, nw.image, nw.status, src.title as src_title, src.keyword as src_keyword, src.url as src_url, src.icon as ...
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82 views

Database instance keeps restarting

From the past few days, our MySQL database instance has crashed and had to be restarted a few times. My MySQL version is 5.1.57-log. The CPU and memory usage was way below 50% during the crash time. I ...
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1answer
187 views

How to run a cold backup with Linux/tar without shutting down MySQL slave?

I run the following before tar-ing up the data directory: STOP SLAVE; FLUSH TABLES WITH READ LOCK; FLUSH LOGS; However, tar will sometimes complain that the ibdata* and ib_logfiles* files are ...
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222 views

MySQL Master-Slave Replication Cross Database

I am setting up Replication for cross Database as i have set 2 variables in Slave' s my.cnf as replicate-do-db=database_name and Replicate-wild-do-table=database_name.% ,But i am not able to get ...
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2answers
93 views

Does pt-table-checksum point out rows that are different between Master and Slave?

Trying to verify replication integrity of my replica. And I found that pt-table-checksum is one of the best ways of doing it. I have a simple Master->Slave set up. Have created a sample table with 10 ...
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0answers
31 views

How does MySQL 5.1 use indexes?

I've read the docs for MySQL v5.1.x on how about the indexes are used, but I'm not sure I understood it properly. Suppose having the following MySQL table: CREATE TABLE IF NOT EXISTS ...
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0answers
330 views

mysql pre-start process (23901) terminated with status 1

I installed a new Mysql server version 5.1 on machine which was running on 5.0. Now when I try to start the mysql server using command service mysql start it gives me an error start: Job failed to ...
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201 views

why is MySQL 5.1 on ubuntu 10.10 not starting? [closed]

I just installed a MySQL 5.1 server on Ubuntu machine. after installation the server should automatically start but it does not start and gives me an error start: Job failed to start . Even when I ...
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1answer
630 views

Why does max_used_connections status not get refreshed automatically once it reaches max_connections, even though the Threads_connected falls down

I always wonder, why does the max_used_connections value not come down, once it reaches the peak value of max_connections? I always flush the status and bring down this value to avoid DB connection ...
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1answer
204 views

Adding a user to MySQL with 'name'@'%' fails with ERROR 1396

I just tried to add a new user to MySQL using CREATE USER 'name'@'%' IDENTIFIED BY '...' However, it fails with the following error: ERROR 1396 (HY000): Operation CREATE USER failed for ...
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3answers
543 views

Automatic MySQL Replication Fail-over Strategy

I want to know that if replication is down due to some reason as if master is down then what strategy should be followed so that the replication is up instantly without manually intervening the ...
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1answer
49 views

Circular replication with servers in different locations

My service runs on single machine, and database (mysql 5.1.66) is replicated to 2 other identical slaves (with lesser system resources, mysql 5.1.66) via chained replication. Machines are located in ...
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1answer
266 views

MySQL: Can't find record in tablename

After crash: mysql> repair table lot_not_sold; +------------------------+--------+----------+---------------------------------------------------------------+ | Table | Op | ...
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1answer
259 views

Mysql:Need to upload data to database, get duplicate key error - how can dup keys be ignored

I'm uploading data to a db (mysql 5.1.42) from a dump file using mysql command line and get duplicate key error. This is the format I use: /mnt/temp# mysql -u username -p -h url_of_db_master -D ...
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0answers
47 views

InnoDB data back in 3 months after OS shutdown

I've got an interesting issue last week that after shutting down an instance of mine, all data were back in 3 months (like a big rollback), even though there is no sign of crashing, recovery crash ...
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0answers
17 views

strange io in mysql server

one of mysql servers becomes slow recently, and I found that there is a high IO in the server: $ sudo pt-ioprofile -cell sizes Mon Apr 29 22:39:32 CDT 2013 Tracing process ID 16934 total ...
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50 views

MySQL “hangs” after every restart.. corrupted tables every now and then.. (5.1.68-cll)

I was seeking an advice in forums about a problem that we face last days. We have a vBulletin forum, we never had any problems in general, but the last couple of days MySQL server hangs and when we ...
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0answers
50 views

Mysql query is very slow

I am developing a website like any other social networking site using mysql. I wish it give people suggestion to my users, and I have implemented this functionality in my application, but It is ...
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0answers
28 views

MySQL becomes unresponsive because user reached its OS quota

In CentOS 6.3/MySQL 5.1.67 I had an user that runs wordpress reaching its OS space quota (mostly files, the DB is less than 100Mb). When the user tried to create a post it triggered an [ERROR] ...
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48 views

Returning multiple resultset from the same table

i am working with mysql procedure. final result set i have got in to one table. now i need to return for each set i need to return the value. example: like this is contents in my the table. i need ...
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0answers
58 views

MySQL flush tables taking too long

I am using MySQL 5.1. I have many databases with a lot of tables. I used to do a Flush Tables once a day, and it used to take about 5 minutes. Since last Tuesday, it takes about 1.5 hour to be ...
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119 views

Which update is faster using join or sequential?

My this question is in sequence of my previous question I asked. I could write two solutions using Stored Procedure instead of trigger or nested-query . Both use a helper function ...
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0answers
382 views

Plesk 11 MySQL connection problem when specifying database

I am having some connection problems with MySQL users when trying to connect directly to a database. This came up when trying to use mysqli_connect in PHP. $dbc=mysqli_connect('127.0.0.1', ...
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2answers
61 views

Infinite Loop While Running Query

When I run this query from the command line, it continuously loops. I'm not sure why this is occurring. Could anyone explain this to me, and please offer a fix. I will be using a query similar to ...
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1answer
65 views

where can I get mysql-5.1.7.tar.gz or mysql-5.1.9.tar.gz? [closed]

I need mysql-5.1.7.tar.gz or mysql-5.1.9.tar.gz, but I can not find them anywhere, who can give me a link to find them, thank you very much!!!

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