mirror of
https://github.com/lukaszraczylo/traefikoidc.git
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lukaszraczylo
4d23d618f5
- RESP -ERR no longer closes healthy conn / aborts batch; global cap replacement-aware - global health-check pass serialized (latent data race); MemoryMonitor via ResourceManager - token-exchange retry, open-circuit rejections counted as failures - TLS-posture matching transport reuse (no silent InsecureSkipVerify handoff)
55 lines
1.5 KiB
Go
55 lines
1.5 KiB
Go
package backends
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import (
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"context"
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"sync"
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"testing"
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"time"
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"github.com/stretchr/testify/require"
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)
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// TestConnectionPool_CapHeldUnderBurst regresses the connection-pool cap
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// being non-atomic: ConnectionPool.Get checked `totalConns < MaxConnections`
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// and THEN dialed a new socket, so concurrent Gets could each pass the check
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// and spike the live connection count far above MaxConnections (FD / Redis
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// maxclients exhaustion under burst load). The cap must now be held
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// atomically so at most MaxConnections sockets are ever created at once.
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func TestConnectionPool_CapHeldUnderBurst(t *testing.T) {
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mr := NewMiniredisServer(t)
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maxConns := 3
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pool, err := NewConnectionPool(&PoolConfig{
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Address: mr.GetAddr(),
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MaxConnections: maxConns,
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ConnectTimeout: 80 * time.Millisecond,
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ReadTimeout: 50 * time.Millisecond,
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WriteTimeout: 50 * time.Millisecond,
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})
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require.NoError(t, err)
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defer pool.Close()
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ctx := context.Background()
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const workers = 50
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var wg sync.WaitGroup
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for i := 0; i < workers; i++ {
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wg.Add(1)
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go func() {
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defer wg.Done()
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conn, _ := pool.Get(ctx)
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if conn != nil {
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// Hold the connection (simulate an in-flight request) so the
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// pool stays under pressure and the count is stable.
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_ = conn
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}
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}()
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}
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wg.Wait()
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stats := pool.Stats()
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total := stats["total_connections"].(int32)
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require.LessOrEqual(t, total, int32(maxConns),
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"burst Gets must not create more than MaxConnections sockets (got %d)", total)
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}
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