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Asked: 2026-05-10T23:11:06+00:00

I have to dump a large database over a network pipe that doesn’t have

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I have to dump a large database over a network pipe that doesn’t have that much bandwidth and other people need to use concurrently. If I try it it soaks up all the bandwidth and latency soars and everyone else gets messed up.

I’m aware of the –compress flag to mysqldump which help somewhat.

How can I do this without soaking up all the bandwidth over this connection?

Update:

The suggestion to copy a dumpfile using scp with the -l flag is a good one, but I should note that I don’t have SSH access to the database server.

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1 Answer

  1. trickle?

    trickle is a portable lightweight userspace bandwidth shaper

    You don’t mention how you are actually transffering the DB dump, but if the transfer happens over TCP/IP, trickle should work. For example, if you use nc (for example: nc -L 1234 > backup.sql) the following command will transfer the backup at no greater than 20KB/s:

    mysqldump [database name] | trickle -u 20 nc backup.example.com:1234
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