How 2 Guru

Recently I am trying to dump a customer MySQL database to a SQL file & restore to another server.
An error occur during the dump process.

The error mention that one of the table in the database is crashed & repair required.
Then I try to login into MySQL server & use the particular database & execute the “DESC” command.
The result is “ERROR 145 (HY000): Table ‘./XXXXXXX/tracker’ is marked as crashed and should be repaired”

mysql> desc tracker;
ERROR 145 (HY000): Table './XXXXXXX/tracker' is marked as crashed and should be repaired
mysql> check table tracker;
+----------------------+-------+----------+----------------------------------------------------------------------------+
| Table                | Op    | Msg_type | Msg_text                                                                   |
+----------------------+-------+----------+----------------------------------------------------------------------------+
| XXXXXXX.tracker      | check | error    | Table './XXXXXXXXX/tracker' is marked as crashed and should be repaired |
+----------------------+-------+----------+----------------------------------------------------------------------------+
1 row in set (0.03 sec)

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Recently I am setup a new server for one of my company client.
After finish configure the server & I am trying to setup SugarCRM inside the server, I found that the database connection part is not able to connect to a remote database server.
Then I try to fill in database information to local database server & everything is working fine.

Then I googled a while & found that it is a SELinux issue. It seem like block apache connect to a remote database server.

Below is my solutions:

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Today I am trying to restore one of MySQL dump into my development database.
While I executing the mysql -uroot -p XXXX < XXXX.sql, the restoration show me the error of ”ERROR 2006 (HY000) at line 3051: MySQL server has gone away“.

Then I double check on the database that I restore, I found that the action terminated in the middle & some of the tables & data is not restored.

I googled a while & found the solution.

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As a database administrator, you might forget the root password for your database. It is a serious problem. This tutorial is to teach you how to reset the root password if you forget it.

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