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[#1523] writecache: Simplify logic

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1. Remove in-memory cache. It doesn't persist objects and if we want
   more speed, `NoSync` option can be used for the bolt DB.
2. Put to the metabase in a synchronous fashion. This considerably
   simplifies overall logic and plays nicely with the metabase bolt DB
   batch settings.

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
This commit is contained in:
Evgenii Stratonikov 2022-07-07 15:52:40 +03:00 • committed by fyrchik
parent 4176b2a1bc
commit ddaed283e9
9 changed files with 140 additions and 328 deletions
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14
pkg/local_object_storage/writecache/delete.go
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@ -22,20 +22,6 @@ func (c *cache) Delete(addr oid.Address) error {
saddr := addr.EncodeToString()
// Check memory cache.
c.mtx.Lock()
for i := range c.mem {
if saddr == c.mem[i].addr {
c.curMemSize -= uint64(len(c.mem[i].data))
copy(c.mem[i:], c.mem[i+1:])
c.mem = c.mem[:len(c.mem)-1]
c.mtx.Unlock()
storagelog.Write(c.log, storagelog.AddressField(saddr), storagelog.OpField("in-mem DELETE"))
return nil
}
}
c.mtx.Unlock()
// Check disk cache.
var has int
_ = c.db.View(func(tx *bbolt.Tx) error {