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a17f14f73a
epoll contention on TCP causes latency build-up when we have high volume ingress. This PR is an attempt to relieve this pressure. upstream issue https://github.com/golang/go/issues/65064 It seems to be a deeper problem; haven't yet tried the fix provide in this issue, but however this change without changing the compiler helps. Of course, this is a workaround for now, hoping for a more comprehensive fix from Go runtime.
73 lines
2.0 KiB
Go
73 lines
2.0 KiB
Go
// Copyright (c) 2015-2021 MinIO, Inc.
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//
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// This file is part of MinIO Object Storage stack
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package cmd
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import (
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"context"
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"testing"
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"github.com/minio/minio/internal/dsync"
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)
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// Tests lock rpc client.
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func TestLockRESTlient(t *testing.T) {
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// These should not be connectable.
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endpoint, err := NewEndpoint("http://localhost:9876")
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if err != nil {
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t.Fatalf("unexpected error %v", err)
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}
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endpointLocal, err := NewEndpoint("http://localhost:9012")
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if err != nil {
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t.Fatalf("unexpected error %v", err)
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}
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endpointLocal.IsLocal = true
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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err = initGlobalLockGrid(ctx, []PoolEndpoints{{Endpoints: Endpoints{endpoint, endpointLocal}}})
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if err != nil {
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t.Fatal(err)
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}
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lkClient := newlockRESTClient(endpoint)
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if lkClient.IsOnline() {
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t.Fatalf("unexpected result. connection was online")
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}
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// Attempt all calls.
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_, err = lkClient.RLock(context.Background(), dsync.LockArgs{})
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if err == nil {
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t.Fatal("Expected for Rlock to fail")
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}
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_, err = lkClient.Lock(context.Background(), dsync.LockArgs{})
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if err == nil {
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t.Fatal("Expected for Lock to fail")
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}
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_, err = lkClient.RUnlock(context.Background(), dsync.LockArgs{})
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if err == nil {
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t.Fatal("Expected for RUnlock to fail")
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}
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_, err = lkClient.Unlock(context.Background(), dsync.LockArgs{})
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if err == nil {
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t.Fatal("Expected for Unlock to fail")
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}
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}
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