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https://github.com/VictoriaMetrics/VictoriaMetrics.git
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2b7b3293c1
`TCP_USER_TIMEOUT` (since Linux 2.6.37) specifies the maximum amount of time that transmitted data may remain unacknowledged before TCP will forcibly close the connection and return `ETIMEDOUT` to the application. Setting a low TCP user timeout allows RPC connections quickly reroute around unavailable storage nodes during network interruptions.
62 lines
1.3 KiB
Go
62 lines
1.3 KiB
Go
package netutil
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import (
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"fmt"
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"testing"
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"time"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/handshake"
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"github.com/VictoriaMetrics/metrics"
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)
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func TestConnPoolStartStopSerial(t *testing.T) {
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ms := metrics.NewSet()
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testConnPoolStartStop(t, "foobar", ms)
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ms.UnregisterAllMetrics()
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}
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func TestConnPoolStartStopConcurrent(t *testing.T) {
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ms := metrics.NewSet()
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concurrency := 5
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ch := make(chan struct{})
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for i := 0; i < concurrency; i++ {
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name := fmt.Sprintf("foobar_%d", i)
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go func() {
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testConnPoolStartStop(t, name, ms)
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ch <- struct{}{}
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}()
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}
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tc := time.NewTimer(time.Second * 5)
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for i := 0; i < concurrency; i++ {
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select {
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case <-tc.C:
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t.Fatalf("timeout")
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case <-ch:
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}
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}
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tc.Stop()
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ms.UnregisterAllMetrics()
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}
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func testConnPoolStartStop(t *testing.T, name string, ms *metrics.Set) {
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dialTimeout := 5 * time.Second
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compressLevel := 1
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var cps []*ConnPool
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for i := 0; i < 5; i++ {
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addr := fmt.Sprintf("host-%d", i)
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cp := NewConnPool(ms, name, addr, handshake.VMSelectClient, compressLevel, dialTimeout, 0)
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cps = append(cps, cp)
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}
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for _, cp := range cps {
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cp.MustStop()
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// Make sure that Get works properly after MustStop()
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c, err := cp.Get()
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if err == nil {
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t.Fatalf("expecting non-nil error after MustStop()")
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}
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if c != nil {
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t.Fatalf("expecting nil conn after MustStop()")
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}
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}
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}
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