Long WebSocket requests on encrypted connections may cause errors

Details

Detail name Value
Changelog Number 9715
Type Bug
Status Resolved
Affected Versions Exasol 6.2.4, Exasol 7.0.alpha1
Fix Versions Exasol 7.0.0, Exasol 6.2.5, Exasol 7.0.beta1
Resolution Date 2020-03-09

Problem

When connected to Exasol using a secure WebSocket connection (wss://), requests with a long text length (>2KB) may cause errors.

For example, the error may be similar to the following error.

Unsupported WebSocket opcode
 Workaround

Disabling encryption will fix the problem (i.e. using 'ws://' instead of 'wss://').

Please be aware that the connection will then be insecure.