Drivers: Randomize connection order with DNS in connection string
Details
| Detail name | Value |
|---|---|
| Changelog Number | 15085 |
| Type | Improvement |
| Status | Resolved |
| Fix Versions | Exasol 7.1.14, Exasol 8.6.0 |
| Resolution Date | 2022-09-21 |
Background
When more than one host is specified in the connection string, the order in which the driver tries to connect to them is random.
If the connection string contains a single DNS entry resolving to multiple IP addresses, the order which the driver tries to connect to the IP addresses within the DNS entry was the network order (e.g. round robin).
Improvement
If the connection string contains a single DNS entry resolving to multiple IP addresses, the order in which the driver tries to connect to the IP addresses within the DNS entry is also randomized.
