Bug #109133 Parallel replication causes massive delays
Submitted: 18 Nov 2022 3:45 Modified: 16 Oct 2023 22:52
Reporter: chengqing hu Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server: Documentation Severity:S3 (Non-critical)
Version:8.0 OS:Any
Assigned to: Jon Stephens CPU Architecture:Any

File: Maximum allowed size is 50MB.
Description:
Privacy:

If the data you need to attach is more than 50MB, you should create a compressed archive of the data, split it to 50MB chunks, and upload each of them as a separate attachment.

To split a large file:

[22 Nov 2022 10:17] Max Irgiznov
Single thread replica

Attachment: flamegraph_mth.svg (image/svg+xml, text), 954.56 KiB.

[22 Nov 2022 10:18] Max Irgiznov
Single thread replica

Attachment: flamegraph_single.svg (image/svg+xml, text), 1.10 MiB.

[22 Nov 2022 10:20] Max Irgiznov
pt-pmp profilig on mth replica

Attachment: pt-pmp.svg (image/svg+xml, text), 105.96 KiB.

[25 Nov 2022 9:59] Max Irgiznov
Hello! I ran the recommended tests.

Attachment: flamegraphs.zip (application/x-zip-compressed, text), 367.58 KiB.