[pbs-devel] [PATCH proxmox-backup 0/2] rewarm local datastore chunk cache on datastore instantiation

[Christian Ebner]

This patches implement the logic to reclaim previously cached chunks which
have been lost from the in-memory chunk digest list since:
- the datastore is removed for the lookup cache when a corresponding
  maintenance mode is set.
- the services are restarted.
- the system is rebooted.

The chunks are re-inserted by iterating over the local datastore cache
chunk store, detecting chunks which have an atime older than the start
of the reclaim task and have a size > 0 (have not been previously evicted).
Since they offer now usable storage space, increment the cache capacity
for each of the found chunks.

proxmox-backup:

Christian Ebner (2):
  tools: lru cache: allow to dynamically increase the cache capacity
  datastore: reinsert unused chunks into cache during instantiation

 pbs-datastore/src/chunk_store.rs              | 65 +++++++++++++++++++
 pbs-datastore/src/datastore.rs                | 18 ++++-
 .../src/local_datastore_lru_cache.rs          | 19 ++++++
 pbs-tools/src/async_lru_cache.rs              |  8 +++
 pbs-tools/src/lru_cache.rs                    |  6 ++
 5 files changed, 114 insertions(+), 2 deletions(-)


Summary over all repositories:
  5 files changed, 114 insertions(+), 2 deletions(-)

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