Migration from ubuntu mysql 5.7 to windows mysql 5.7
Posted by: calvin law
Date: September 15, 2020 06:48PM

Dear all,

I have some issues regrading migration from ubuntu (Server 1) to windows MySQL (Server 2). First of all, I had installed MySQL migration tools on Server 2, and when i try to migrate the data, Server 1 does not migrate the data. Some of the views stated syntax error and unable to create in the migration.

Then when I try to migrate with MySQL from the migration tab, all tables and views and routines were successfully created, but it will generate errors like MySQL server had gone away. So i double check on those tables, on which it is a big tables with carry lot of data inside.

`ntnsap`.`dtrtbl`:Finished copying 55 rows in 0m02s
`ntnsap`.`bgttbl`:Copying 17 columns of 280637 rows from table `ntnsap`.`bgttbl`
ERROR: `ntnsap`.`bgttbl`:Failed copying 30617 rows
ERROR: `ntnsap`.`dptmas`:mysql_query(SELECT count(*) FROM `dptmas`): MySQL server has gone away
`ntnsap`.`dptmas`:Finished copying 0 rows in 0m00s
ERROR: `ntnsap`.`dlrtbl`:mysql_query(SELECT count(*) FROM `dlrtbl`): MySQL server has gone away
`ntnsap`.`dlrtbl`:Finished copying 0 rows in 0m00s
ERROR: `ntnsap`.`tmptrt`:mysql_query(SELECT count(*) FROM `tmptrt`): MySQL server has gone away
`ntnsap`.`tmptrt`:Finished copying 0 rows in 0m00s
ERROR: `ntnsap`.`rbttbl`:mysql_query(SELECT count(*) FROM `rbttbl`): MySQL server has gone away
`ntnsap`.`rbttbl`:Finished copying 0 rows in 0m00s
ERROR: `ntnsap`.`tihfil`:mysql_query(SELECT count(*) FROM `tihfil`): MySQL server has gone away
`ntnsap`.`tihfil`:Finished copying 0 rows in 0m00s
ERROR: `ntnsap`.`lidtbl`:mysql_query(SELECT count(*) FROM `lidtbl`): MySQL server has gone away
`ntnsap`.`lidtbl`:Finished copying 0 rows in 0m00s

So i run some of the scripts like this,

-- SHOW VARIABLES LIKE 'sql_mode'; -- show status on SQL mode

-- set sql_mode=''; -- can the mode to non strict mode as to copy the data without checking the format.

-- select @@sql_mode; -- to show mysql mode status.

-- set global max_allowed_packet=104857600; -- allow maximum packet to 100mb for data transfer.

After applying those scripts, the migration still does not correctly, it will just lost connection from copying large table to Server 2. I have try to migrate the data from server 1 to my PC and the migration completed without any error.

Server 1 Specification
OS: ubuntu 18.4
MySQL Server Ver: 5.7
Processor: Xeon E3400 Series
RAM: 4GB

Server2 Specification
OS: Windows Server 2012 R2
MySQL Server Ver: 5.7
Processor: Xeon E3400 Series
RAM: 4GB

My PC Specification
OS: Windows 10 Pro 1909
MySQL Server Ver: 5.7
Processor: Corei7 10700 Series
RAM: 16GB

Please Advice.

Thank You

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Migration from ubuntu mysql 5.7 to windows mysql 5.7
September 15, 2020 06:48PM


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