[Enhancement]: the tenant parameter max_allowed_packet of the metadata database must meet the specified size for odc to start successfully

[zijiacj]

What would you like to be added?

During ODC startup, the tenant parameter max_allowed_packet of the metadata database needs to be checked. max_allowed_packet must meet the specified size

Why is this needed?

If the max_allowed_packet is too small, the flow module fails. In this case, customer need to set an appropriate size for max_allowed_packet and then restart the odc service.This affects the user experience

[yhilmare]

we will set the json value of the request object into the table act_ge_bytearray, the json will be much bigger if the user input a large sql content.

this enhancement will should be fixed by limiting the max content's length by user inputing

[yhilmare]

Already confirmed with QA @tonghan-gsh