Bug 47133

Bug: 47133

Impact:

Critical

Product:

GemStone/S 64 Bit

Versions:

3.3.6, 3.3.5, 3.3.4, 3.3.3, 3.3.2, 3.3.1, 3.3, 3.2.17, 3.2.16, 3.2.15, 3.2.14, 3.2.13, 3.2.12, 3.2.11, 3.2.10, 3.2.9, 3.2.8.1, 3.2.8, 3.2.7, 3.2.6, 3.2.5, 3.2.4, 3.2.3, 3.2.2, 3.2.1, 3.2

Platform:

All Platforms

Fixed In:

3.4, 3.3.7, 3.2.18

Suspended checkpoints will silently resume after an Epoch GC

When checkpoints have been suspended using "System suspendCheckpointsForMinutes:", if an Epoch GC should run during this time window, the suspension is cancelled and checkpoints will resume, without any warning messages in the stone log.  If a checkpoint should subsequently occur while extent copies are being taken, the resulting extent copies could be corrupted and therefore unusable.

Workaround

Suspend Epoch GC using: "System disableEpochGc" before executing the "System suspendCheckpointsForMinutes:" command, and then resume them using "System enableEpochGc" after the suspension time window or when checkpoints are resumed using "System resumeCheckpoints"