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Put object client disconnect (#7824)

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Fail putObject  and postpolicy in case client prematurely disconnects
Use request's context to cancel lock requests on client disconnects
This commit is contained in:
Krishna Srinivas
2019-06-28 22:09:17 -07:00
committed by kannappanr
parent edbd8709ec
commit 338e9a9be9
25 changed files with 89 additions and 73 deletions
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23
cmd/namespace-lock.go
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@@ -27,7 +27,7 @@ import (
"fmt"
"time"
"github.com/minio/dsync"
"github.com/minio/dsync/v2"
"github.com/minio/lsync"
"github.com/minio/minio-go/v6/pkg/set"
"github.com/minio/minio/cmd/logger"
@@ -127,7 +127,7 @@ type nsLockMap struct {
}
// Lock the namespace resource.
func (n *nsLockMap) lock(volume, path string, lockSource, opsID string, readLock bool, timeout time.Duration) (locked bool) {
func (n *nsLockMap) lock(ctx context.Context, volume, path string, lockSource, opsID string, readLock bool, timeout time.Duration) (locked bool) {
var nsLk *nsLock
n.lockMapMutex.Lock()
@@ -135,7 +135,7 @@ func (n *nsLockMap) lock(volume, path string, lockSource, opsID string, readLock
nsLk, found := n.lockMap[param]
if !found {
n.lockMap[param] = &nsLock{
LRWMutex: &lsync.LRWMutex{},
LRWMutex: lsync.NewLRWMutex(ctx),
ref: 1,
}
nsLk = n.lockMap[param]
@@ -199,7 +199,7 @@ func (n *nsLockMap) Lock(volume, path, opsID string, timeout time.Duration) (loc
readLock := false // This is a write lock.
lockSource := getSource() // Useful for debugging
return n.lock(volume, path, lockSource, opsID, readLock, timeout)
return n.lock(context.Background(), volume, path, lockSource, opsID, readLock, timeout)
}
// Unlock - unlocks any previously acquired write locks.
@@ -213,7 +213,7 @@ func (n *nsLockMap) RLock(volume, path, opsID string, timeout time.Duration) (lo
readLock := true
lockSource := getSource() // Useful for debugging
return n.lock(volume, path, lockSource, opsID, readLock, timeout)
return n.lock(context.Background(), volume, path, lockSource, opsID, readLock, timeout)
}
// RUnlock - unlocks any previously acquired read locks.
@@ -241,7 +241,7 @@ func (n *nsLockMap) ForceUnlock(volume, path string) {
// are blocking can now proceed as normal and any new locks will also
// participate normally.
if n.isDistXL { // For distributed mode, broadcast ForceUnlock message.
dsync.NewDRWMutex(pathJoin(volume, path), globalDsync).ForceUnlock()
dsync.NewDRWMutex(context.Background(), pathJoin(volume, path), globalDsync).ForceUnlock()
}
// Remove lock from the map.
@@ -291,6 +291,7 @@ func (di *distLockInstance) RUnlock() {
// localLockInstance - frontend/top-level interface for namespace locks.
type localLockInstance struct {
ctx context.Context
ns *nsLockMap
volume, path, opsID string
}
@@ -298,12 +299,12 @@ type localLockInstance struct {
// NewNSLock - returns a lock instance for a given volume and
// path. The returned lockInstance object encapsulates the nsLockMap,
// volume, path and operation ID.
func (n *nsLockMap) NewNSLock(volume, path string) RWLocker {
func (n *nsLockMap) NewNSLock(ctx context.Context, volume, path string) RWLocker {
opsID := mustGetUUID()
if n.isDistXL {
return &distLockInstance{dsync.NewDRWMutex(pathJoin(volume, path), globalDsync), volume, path, opsID}
return &distLockInstance{dsync.NewDRWMutex(ctx, pathJoin(volume, path), globalDsync), volume, path, opsID}
}
return &localLockInstance{n, volume, path, opsID}
return &localLockInstance{ctx, n, volume, path, opsID}
}
// Lock - block until write lock is taken or timeout has occurred.
@@ -311,7 +312,7 @@ func (li *localLockInstance) GetLock(timeout *dynamicTimeout) (timedOutErr error
lockSource := getSource()
start := UTCNow()
readLock := false
if !li.ns.lock(li.volume, li.path, lockSource, li.opsID, readLock, timeout.Timeout()) {
if !li.ns.lock(li.ctx, li.volume, li.path, lockSource, li.opsID, readLock, timeout.Timeout()) {
timeout.LogFailure()
return OperationTimedOut{Path: li.path}
}
@@ -330,7 +331,7 @@ func (li *localLockInstance) GetRLock(timeout *dynamicTimeout) (timedOutErr erro
lockSource := getSource()
start := UTCNow()
readLock := true
if !li.ns.lock(li.volume, li.path, lockSource, li.opsID, readLock, timeout.Timeout()) {
if !li.ns.lock(li.ctx, li.volume, li.path, lockSource, li.opsID, readLock, timeout.Timeout()) {
timeout.LogFailure()
return OperationTimedOut{Path: li.path}
}