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Database Sync Stopping

Database Sychronization

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#1 maxhugen

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Posted 26 February 2017 - 12:57 AM

On a Win10 development machine, I lost a hard drive (D) where I keep MySQL data.

 

After replacing the drive and restoring my local backup dumps, I tried to sync data for 3 databases from a server to my local db.

 

Now I'm having problems during the sync: for 'larger' tables (10-100k records) the sync sometimes just stops. I've checked the sja.log but there is no information there, and also the MySQL err.log - nothing there either.

 

When the sync stops, I've tried syncing just the table at which the [Sync all tables] stops. Watching the 'Target' messages in the Wizard, I see msgs flashing such as "updating row xxx", then after doing that for a while, the sync stops, unfinished, but with no msg as to why.

 

If I repeat the process of syncing just that one table, it eventually gets through it. It can take 1-5 attempts to complete.

 

It seems to sometimes occur when a table has to update 3-5k records, but some tables seem to go OK even though updating 12k records etc.

 

I've checked my Internet connection using SpeedTest, but as far as I can tell it seems OK.

 

The sync functionality is quite critical for me, as I need to sync 3 dbs every day, whilst I develop apps, so if anyone can offer ANY suggestions I'd be most grateful.

 

Cheers, Max Hugen


Max Hugen
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#2 Sibin A S

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Posted 17 March 2017 - 06:18 AM

Hi,

 

Are you able to reproduce this at will?

 

Regards,

Sibin



#3 maxhugen

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Posted 18 March 2017 - 12:55 AM

Hi Sibin, unfortunately no, I can't reproduce.

 

I persisted, with repeated attempts to sync the tables that seemed to 'stall', and finally got the data all synchronized.

 

It looks like the problems only occurred during this initial sync, when thousands of records had to be sync'd in some tables. Even then, some tables sync'd thousands of records with no problem, but others just stopped.

 

Since then, daily syncs haven't been a problem, as it's at most a few hundred in more active tables.

 

Cheers, Max


Max Hugen
Australia

#4 Siseexceeta

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