Out-of-memory errors when using new S3 SDFS backend
Details
| Detail name | Value |
|---|---|
| Changelog Number | 22104 |
| Type | Bug |
| Status | Resolved |
| Affected Versions | Exasol 7.1.0, Exasol 8.0.0 |
| Fix Versions | Exasol 2025.1.3, Exasol 2025.2.0 |
| Resolution Date | 2025-09-17 |
Description
The S3 SDFS backend for remote volumes (cloud_backend_v2 option in v7, default in v8 for S3 URLs) can leak memory. This can lead to “out of memory” errors during backups (both writing and restoring) and eventually to DB restarts.
Workaround
None. In v7, try it without the cloud_backend_v2 option, this will cause a different SDFS backend to be used.
