TLS: Unexpected client disconnects may cause sessions and logins to hang in rare cases
Details
| Detail name | Value |
|---|---|
| Changelog Number | 13727 |
| Type | Bug |
| Status | Resolved |
| Affected Versions | Exasol 7.1.0, Exasol 6.2.15, Exasol 7.0.10 |
| Fix Versions | Exasol 8.0.0, Exasol 7.1.7 |
| Resolution Date | 2022-03-16 |
Problem
If the client is connected to Exasol using the TLS protocol and unexpectedly disconnects (e.g. because of network issues), then in rare cases this may cause the client's session and possibly also all logins into Exasol to hang.
Workaround
If you are affected by this issue:
- Restart the database in order to return to normal operation.
To avoid this issue:
- Enable legacy encryption in 7.1.x ODBC, JDBC, and ADO.NET drivers to avoid using TLS in case you are experiencing connection losses.
Fix
Unexpected client disconnects on TLS connections will not cause sessions/logins to hang.
