Commit Graph

9 Commits

Author SHA1 Message Date
Michael Eischer 4a10ebed15 archiver: reduce memory usage for large files
FutureBlob now uses a Take() method as a more memory-efficient way to
retrieve the futures result. In addition, futures are now collected
while saving the file. As only a limited number of blobs can be queued
for uploading, for a large file nearly all FutureBlobs already have
their result ready, such that the FutureBlob object just consumes
memory.
2022-07-23 14:45:07 +02:00
Alexander Neumann 99634c0936 Return real size from SaveBlob 2022-07-02 18:55:12 +02:00
Michael Eischer 408ac1a0c2 archiver: remove tomb usage 2022-06-05 15:47:52 +02:00
Michael Eischer 014600bee6 archiver: Remove unused variable from test 2020-09-05 10:07:16 +02:00
Michael Eischer c847aace35 Rename Index interface to MasterIndex
The interface is now only implemented by repository.MasterIndex.
2020-07-25 21:19:46 +02:00
Alexander Weiss 9d1fb94c6c make Lookup() return all blobs
+ simplify syntax
2020-07-25 21:18:34 +02:00
Alexander Weiss 91906911b0 Fix non-intuitive repository behavior
- The SaveBlob method now checks for duplicates.
- Moves handling of pending blobs to MasterIndex.
  -> also cleans up pending index entries when they are saved in the index
  -> when using SaveBlob no need to care about index any longer
- Always check for full index and save it when storing packs.
  -> removes the need of an index uploader
  -> also removes the verbose "uploaded intermediate index" messages
- The Flush method now also saves the index
- Fix race condition when checking and saving full/non-finalized indexes
2020-06-11 13:05:23 +02:00
Michael Eischer bdf7ba20cb archiver: Fix race condition triggered by TestArchiverAbortEarlyOnError
The Save methods of the BlobSaver, FileSaver and TreeSaver return early
on when the archiver is stopped due to an error. For that they select on
both the tomb.Dying() and context.Done() channels, which can lead to a
race condition when the tomb is killed due to an error: The tomb first
closes its Dying channel before canceling all child contexts.
Archiver.SaveDir only aborts its execution once the context was
canceled. When the tomb killing is paused between closing its Dying
channel and canceling the child contexts, this lets the
FileSaver/TreeSaver.Save methods return immediately, however, ScanDir
still reads further files causing the test case to fail.

As a killed tomb always cancels all child contexts and as the Savers
always use a context bound to the tomb, it is sufficient to just use
context.Done() as escape hatch in the Save functions. This fixes the
mismatch between SaveDir and Save.

Adjust the tests to use contexts bound to the tomb for all interactions
with the Savers.
2020-04-13 18:23:17 +02:00
Alexander Neumann 581c62ee72 archiver: Improve error handling
This commit changes how the worker goroutines for saving e.g. blobs
interact. Before, it was possible to get stuck sending an instruction to
archive a file or dir when no worker goroutines were available any more.
This commit introduces a `done` channel for each of the worker pools,
which is set to the channel returned by `tomb.Dying()`, so it is closed
when the first worker returned an error.
2018-05-12 23:55:54 +02:00