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[#32] node: Init write-cache asynchronously

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Signed-off-by: Pavel Karpy <p.karpy@yadro.com>
This commit is contained in:
Pavel Karpy 2023-02-15 17:53:42 +03:00 • committed by Gitea
parent 381e363a8b
commit f1f3c80dbf
8 changed files with 132 additions and 15 deletions
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22
pkg/local_object_storage/writecache/writecache.go
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@ -10,6 +10,7 @@ import (
"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
"go.etcd.io/bbolt"
"go.uber.org/atomic"
"go.uber.org/zap"
)
@ -48,8 +49,11 @@ type cache struct {
// mtx protects statistics, counters and compressFlags.
mtx sync.RWMutex
mode mode.Mode
modeMtx sync.RWMutex
mode mode.Mode
initialized atomic.Bool
stopInitCh chan struct{} // used to sync initWG initialisation routines and _only_ them
initWG sync.WaitGroup // for initialisation routines only
modeMtx sync.RWMutex
// compressFlags maps address of a big object to boolean value indicating
// whether object should be compressed.
@ -57,7 +61,7 @@ type cache struct {
// flushCh is a channel with objects to flush.
flushCh chan *object.Object
// closeCh is close channel.
// closeCh is close channel, protected by modeMtx.
closeCh chan struct{}
// wg is a wait group for flush workers.
wg sync.WaitGroup
@ -89,8 +93,9 @@ var (
// New creates new writecache instance.
func New(opts ...Option) Cache {
c := &cache{
flushCh: make(chan *object.Object),
mode: mode.ReadWrite,
flushCh: make(chan *object.Object),
mode: mode.ReadWrite,
stopInitCh: make(chan struct{}),
compressFlags: make(map[string]struct{}),
options: options{
@ -151,8 +156,11 @@ func (c *cache) Init() error {
// Close closes db connection and stops services. Executes ObjectCounters.FlushAndClose op.
func (c *cache) Close() error {
c.modeMtx.Lock()
defer c.modeMtx.Unlock()
// Finish all in-progress operations.
if err := c.SetMode(mode.ReadOnly); err != nil {
if err := c.setMode(mode.ReadOnly); err != nil {
return err
}
@ -164,6 +172,8 @@ func (c *cache) Close() error {
c.closeCh = nil
}
c.initialized.Store(false)
var err error
if c.db != nil {
err = c.db.Close()