HPCC-10177 Add code to restrict the number of persist instances

Delete the least-recently-used versions of a persist before rebuilding.

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>
HPCC-10177 Add code to restrict the number of persist instances

Changes following code review.

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>
HPCC-9970 Default persist files to expiring after 14 days

Can be configured with expirePersists and defaultPersistExpiry debug options

Signed-off-by: Gavin Halliday <gavin.halliday@lexisnexis.com>
Merge pull request #4889 from ghalliday/issue9970

HPCC-9970 Default persist files to expiring after 14 days

Reviewed-By: Jake Smith <jake.smith@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>
Merge pull request #4954 from richardkchapman/persist-lru

HPCC-10177 Add code to restrict the number of persist instances

Reviewed-by: Gavin Halliday <ghalliday@hpccsystems.com>