Commit graph

271 commits

Author SHA1 Message Date
Evgenii Stratonikov
dd678cd976 [#868] blobstor: allow to decompress objects on-the-fly
We should be able to read whatever we have written earlier.
Compression setting applies only to the new objects.

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2021-10-08 16:01:45 +03:00
Evgenii Stratonikov
cc377b34d2 [#868] blobstor: initialize (de-)compressors in Init
Do not log in options constructors. Also failure to
initialize compression module (possibly due to invalid options) is
certainly an error deserving proper treatment.

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2021-10-08 16:01:45 +03:00
Leonard Lyubich
8a1593fdcc [#791] writecache: Export OpenDB function
The function will be useful for the tool which works with write-cache parts.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-10-05 10:51:10 +03:00
Leonard Lyubich
ca4c9d4673 [#791] writecache: Implement iterator over small objects
There is a need to list addresses of the small objects stored in WriteCache
database.

Implement `IterateDB` function which accepts BoltDB instance and iterate
over all saved objects and passes their addresses to the hander.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-10-05 10:51:10 +03:00
Leonard Lyubich
f73c5c2259 [#791] blobovnicza: Support read-only mode
There is a need to open Blobovnicza instances in read-only mode in some
cases.

Add `ReadOnly` option. Do not create dir path in RO. Open underlying BoltDB
instance with ReadOnly flag. Document thal all writing operations should not
be called in ro (otherwise BoltDB txs fail).

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-10-05 10:51:10 +03:00
Leonard Lyubich
cc5d3288a1 [#791] blobovnicza: Don't iterate over range buckets in Iterate
`Blobovnicza` can be initialized with any number of range buckets, and
reconstructed with different size limit. In previous implementation
`Iterate` could miss some stored objects if we construct `Blobovnicza` with
smaller number of ranges.

Make `Iterate` to traverse all buckets regardless of current instance
bounds.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-10-05 10:51:10 +03:00
Leonard Lyubich
5e2ca0d04b [#791] blobovnicza: Implement method to iterate over object addresses
In previous implementation `Blobovnicza.Iterate` op decoded object data only
and passed it to the handler. There is a need to iterate over all addresses
of the stored objects.

Add `DecodeAddresses` and `WithoutData` methods of `IteratePrm` type. Add
`Address` method to `IterationElement` type. Make `Iterate` to decode object
addresses if `DecodeAddress` was called and not read the data if
`WithoutData` was called. Implement `IterateAddresses` helper function to
simplify the code.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-10-05 10:51:10 +03:00
Leonard Lyubich
c96c455125 [#840] shard: Fix metabase Inhume parameters for tombstones
Replace `WithAddresses` with `WithTombstoneAddress` on `InhumePrm`.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-09-27 11:27:41 +03:00
Leonard Lyubich
14329ab565 [#840] metabase: Distinguish objects with tombstones and GC marks
Each object from graveyard has tombstone or GC mark. If object has
tombstone, metabase should return `ErrAlreadyRemoved` on object requests.
This is the case when user clearly removed the object from container. GC
marks are used for physical removal which can appear even if object is still
presented in container (Control service, Policer job, etc.). In this case
metabase should return 404 error on object requests.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-09-27 11:27:41 +03:00
Leonard Lyubich
02e6df683a [#840] shard: Return only physically stored objects from List
`List` method of `Shard` must return only physically stored objects.

Use `AddPhyFilter` to select only phy objects.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-09-27 11:27:41 +03:00
Leonard Lyubich
504abdda06 [#789] shard: Exclude object.ErrAlreadyRemoved errors in refillMetabase
Tombstone and "alive" objects can be both stored in BlobStor. They can
appear during iterating in different order. Metabase returns
`ErrAlreadyRemoved` error if object is inhumed.

Ignore `object.ErrAlreadyRemoved` errors of `metabase.Put`in Shard's
`refillMetabase` operation.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-09-15 18:22:09 +03:00
Leonard Lyubich
6bf7a00cfe [#789] shard: Add option to refill metabase on initialization
Add `WithRefillMetabase` option constructor which allows to set flag to
refill metabase.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-09-15 18:22:09 +03:00
Leonard Lyubich
b9c22e21b1 [#789] shard: Add method to refill the metabase
There is a need to refill Metabase data with the objects from BlobStor.

Implement `refillMetabase` method which iterates over all objects from
BlobStor and saves them in Metabase.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-09-15 18:22:09 +03:00
Leonard Lyubich
8d016d2529 [#789] blobstor: Implement iterator
There is a need to be able to process all objects saved in `BlobStor`.

Implement `BlobStor.Iterate` method which iterates over all objects.
Implement `IterateBinaryObjects` and `IterateObjects` helper functions to
simplify the code.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-09-15 18:22:09 +03:00
Leonard Lyubich
b618a44d69 [#789] blobovnicza: Implement iterator
There is a need to be able to process all stored objects saved in
`Blobovnicza`.

Implement `Blobovnicza.Iterate` method which iterates over all objects.
Implement `IterateObjects` helper function to simplify the code.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-09-15 18:22:09 +03:00
Leonard Lyubich
55c94a0152 [#789] metabase: Implement Reset method
In the previous implementation of the metabase, there was no possibility of
reinitializing the metabase: clearing information about existing objects and
bringing it back to its initial state. This operation can be useful in
cases when the stored metadata about objects has lost (or possibly lost)
relevance, and you need to generate data from scratch. Also at the
initialization stage, static resources of the base were not created -
container-independent buckets.

Make `Metabase.Init` method to allocate graveyard, container-size and
to-move-it buckets in underlying BoltDB instance. Implement `Metabase.Reset`
method: it works like `Init` but clean up all static buckets and removes
other ones. Due to the logical similarity, the methods share a single piece
of code.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-09-15 18:22:09 +03:00
Leonard Lyubich
a1696a81b6 [#776] writecache: Limit size of used disk space
There is a need to limit disk space used by write-cache. It is almost
impossible to calculate the value exactly. It is proposed to estimate the
size of the cache by the number of objects stored in it.

Track amounts of objects saved in DB and FSTree separately. To do this,
`ObjectCounters` interface is defined. It is generalized to a store of
numbers that can be made persistent (new option `WithObjectCounters`). By
default DB number is calculated as key number in default bucket, and FS
number is set same to DB since it is currently hard to read the actual value
from `FSTree` instance. Each PUT/DELETE operation to DB or FS
increases/decreases corresponding counter. Before each PUT op an overflow
check is performed with the following formula for evaluating the occupied
space: `NumDB * MaxDBSize + NumFS * MaxFSSize`. If next PUT can cause
write-cache overflow, object is written to the main storage.

By default maximum write-cache size is set to 1GB.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-09-15 18:07:36 +03:00
Leonard Lyubich
3258d9c616 [#790] writecache: Log each writing operation
Call `storagelog.Write` in all places after the successful writing op.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-09-13 15:02:13 +03:00
Leonard Lyubich
4f73c00776 [#790] blobstor: Log each writing operation
Call `storagelog.Write` in all places after the successful writing op.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-09-13 15:02:13 +03:00
Leonard Lyubich
3cfb58aabd [#790] storage engine: Add common template of log messages
There is a need to keep track of each local storage change. Log messages are
the most convenient way to do it.

Implement function which writes log message about the completed writing
operation in storage engine.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-09-13 15:02:13 +03:00
Leonard Lyubich
3f293cb55e [#762] storage/shard: Try to read headers from write-cache
Shard should try to read object headers from write-cache if it is enabled.

Extend `writecache.Cache` interface with `Head` method. Call the method in
`Shard.Head` if `Shard.hasWriteCache` returns true.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-09-02 11:33:17 +03:00
Leonard Lyubich
aa2151fbeb [#762] write-cache: Implement Head operation
Write cache should be able to execute HEAD operations according to spec.

Add simple implementation of `Head` method through the `Get` one. Leave
notes for future optimization.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-09-02 11:33:17 +03:00
Pavel Karpy
c54f524df9 [#773] writecache: Delete unused dbSize param
Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
2021-08-27 15:05:53 +03:00
Pavel Karpy
4ff98a7e2b [#760] metabase: Support COMMON_PREFIX matchtype
Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
2021-08-27 15:03:15 +03:00
Alex Vanin
53f031e98c [#766] Fix misspell linter error
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2021-08-26 17:57:15 +03:00
Alex Vanin
30738549ef [#766] Fix makezero linter error
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2021-08-26 17:57:15 +03:00
Pavel Karpy
3d981320c6 [#745] gc: Stop GC work on Shard's Close
Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
2021-08-05 14:44:05 +03:00
Pavel Karpy
7a10d902be [#727] Use util.MkdirAllX instead of os.MkdirAll
Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
2021-07-30 16:42:22 +03:00
Leonard Lyubich
56d4410913 [#638] Update to Go 1.16
Changes:

  * replace `iotuil` elements with the ones from `os` package;
  * replace `os.Filemode` with `fs.FileMode`;
  * use `signal.NotifyContext` instead of `NewGracefulContext` (removed).

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-06-29 13:44:59 +03:00
Pavel Karpy
48827f42d3 [#643] pkg: Sync method names and commentaries to them
Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
2021-06-24 16:10:44 +03:00
ZhangTao1596
9b87e6267d [#568] shard/writecache: Maintain memory size and db size
Signed-off-by: ZhangTao1596 <zhangtao@ngd.neo.org>
2021-06-21 14:26:30 +03:00
Leonard Lyubich
cc81723b01 [#615] blobovnicza: Simplify byte size stringer
Make `stringifyByteSize` to return number of bytes as string.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-06-16 12:14:04 +03:00
Leonard Lyubich
d34de558f0 [#570] *: Use generator of test owner IDs from API Go lib
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-05-31 20:45:15 +03:00
Leonard Lyubich
3e1463cc76 [#570] *: Use generator of test container IDs from API Go lib
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-05-31 20:45:15 +03:00
Leonard Lyubich
3dd10b6795 [#570] *: Remove usage of deprecated elements from API Go library
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-05-31 20:45:15 +03:00
Evgenii Stratonikov
213bbcbf2b [#541] blobstor/fstree: fix a bug in Iterate()
Be able to recover address from the path. Also add tests.

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2021-05-20 19:24:42 +03:00
Leonard Lyubich
1b51dcf8a4 [#546] engine/inhume: Fix incorrect Inhume behavior for root objects
If object to be inhumed is root we need to continue first traverse over the
shards. In case when several children are stored in different shards,
inhuming object in a single shard leads to appearance of inhumed object in
subsequent selections. Also, any object can be already inhumed, and this
case is equivalent to successful inhume.

Do not fail on `object.ErrAlreadyRemoved` error. Continue first iterating
over shards if we detected root object (`SplitInfoError`).

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-05-20 17:39:38 +03:00
Leonard Lyubich
c5dae76c7d [#546] engine/inhume: Write unit tests
Write unit tests of `StorageEngine.Inhume` which assert that inhumed objects
don't appear in `Select` result.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-05-20 17:39:38 +03:00
Leonard Lyubich
d1d846cf4d [#546] engine/inhume: Fix incorrect reaction on successful traverse
In previous implementation storage engine false-negatively reacted to a
successful Inhume operation.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-05-20 17:39:38 +03:00
Evgenii Stratonikov
71b87155ef [#521] *: use stdlib errors package
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2021-05-19 16:42:54 +03:00
Evgenii Stratonikov
59de521fd1 [#472] blobstor: implement write-cache
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2021-04-29 17:36:36 +03:00
Evgenii Stratonikov
96a8ee7c83 [#472] blobstor: allow to put raw objects
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2021-04-29 17:36:36 +03:00
Evgenii Stratonikov
4a1ca4ecc1 [#443] metabase: speedup encodelist
GOB appears to be almost twice as slow as this implementation.

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2021-04-29 17:36:36 +03:00
Evgenii Stratonikov
62b8958177 [#472] blobstor: check for blobovnicza without mutex first
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2021-04-29 17:36:36 +03:00
Evgenii Stratonikov
828c8695c1 [#472] blobstor: use DB.Batch() for metabase and blobstor
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2021-04-29 17:36:36 +03:00
Evgenii Stratonikov
934e394e28 [#472] blobstor: move fsTree to a separate package
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2021-04-29 17:36:36 +03:00
Evgenii Stratonikov
de74fcc38f [#481] blobstor: use simplelru.LRU cache
Evicting from cache requires closing blobovnicza which
in turn needs to lock `activeMtx`. This lock is not needed on
every addition, but our LRU library doesn't return evicted keys.
In future we may consider switching to other implementation.

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2021-04-21 14:41:34 +03:00
Alex Vanin
9a961e21b1 [#477] metabase: Move MergeSplitInfo to storage/util pkg
This function already reused in different storage engine parts
so it makes sense to keep it in separate package.

Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2021-04-15 11:18:39 +03:00
Alex Vanin
bc09e29bfd [#477] engine: Reuse SplitInfoError fix for engine.Range
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2021-04-15 11:18:39 +03:00
Alex Vanin
7e435db292 [#477] engine: Reuse SplitInfoError fix for engine.Get
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2021-04-15 11:18:39 +03:00