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2
votes
2answers
430 views

Take individual MySQL database offline

MySQL does not have any SQL commands or internal mechanisms for making an individual database unavailable / offline moving an individual database Thtis being the case, how can you take an ...
2
votes
1answer
60 views

Problem in Fetching Result set in Desired Format

I have 2 tables having the following columns Person ------ person_id, first_name, middle_name, last_name Items ----- person_item_id, person_id, item_type, status, ordered_date The query is ...
1
vote
1answer
169 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 ...
1
vote
1answer
82 views

Does Pt-table-checksum point out rows that are different from that of the Master

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 ...
5
votes
0answers
214 views

Migrating MySQL to new server

We have a MySQL 5.1 instance running on Windows Server 2008 R2 x64 (Server A) replicated to another MySQL 5.1 instance on Windows Server 2003 R2 (Server B). We have a new MySQL 5.5 instance on ...
1
vote
0answers
81 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 ...
1
vote
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 ...
1
vote
0answers
316 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 ...
0
votes
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 ...
0
votes
0answers
41 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 ...
0
votes
0answers
46 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 ...
0
votes
0answers
24 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] ...
0
votes
0answers
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 ...
0
votes
0answers
55 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 ...
0
votes
0answers
112 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 ...
0
votes
0answers
368 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', ...