cr_net_packet_too_large
Moderate
MySQL · Connector / Client Library
MySQL client error 2020: NET PACKET TOO LARGE.
Quick Answer
Error code CR_NET_PACKET_TOO_LARGE on your MySQL Connector / Client Library means: MySQL client error 2020: NET PACKET TOO LARGE.. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Capture client and server logs for CR_NET_PACKET_TOO_LARGE, including host, port, TLS mode, and statement context.
2
Align connector/client version with server expectations for metadata handling.
3
Validate client packet/result handling and statement lifecycle sequencing.
4
Reduce payload size or fetch window, then retest memory and truncation paths.
5
Track CR_NET_PACKET_TOO_LARGE frequency by environment to detect regressions early.
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
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