#### Do-stuff-later pool

Sometimes there's an action required like calling the application layer or responding to a ping, and the thread discovering the action is not the thread that should do the work. We enqueue a runnable on this executor and it gets handled by one of the executor's threads.

### Locks

We have 3 different things that we synchronize on.

#### Http2Connection

			ret.Quote = append(ret.Quote, []rune(args.QuoteCharacter)[0])
		}
		ret.QuoteEscape = []rune(args.QuoteEscapeCharacter)[0]
		ret.FieldsPerRecord = -1
		// If LazyQuotes is true, a quote may appear in an unquoted field and a
		// non-doubled quote may appear in a quoted field.
		ret.LazyQuotes = true
		// We do not trim leading space to keep consistent with s3.
		ret.TrimLeadingSpace = false
		ret.ReuseRecord = true

              }
            },
            directExecutor()));
    thingToCancel[0] = serializer.submit(Callables.returning(null), directExecutor());
    results.add(thingToCancel[0]);
    // Enqueue more than enough tasks to force reentrancy.
    for (int i = 0; i < 5; i++) {
      results.add(serializer.submit(Callables.returning(null), directExecutor()));
    }

    manualExecutorTask[0].run();

	Null    bool           `parser:" | @\"NULL\""`
	Missing bool           `parser:" | @\"MISSING\")"`
}

// Identifier represents a parsed identifier
type Identifier struct {
	Unquoted *string           `parser:"  @Ident"`
	Quoted   *QuotedIdentifier `parser:"| @QuotIdent"`
}

var (
	sqlLexer = lexer.Must(lexer.Regexp(`(\s+)` +

	public final fun -deprecated_requestCount ()I
	public final fun -deprecated_serverSocketFactory (Ljavax/net/ServerSocketFactory;)V
	public fun <init> ()V
	public fun close ()V
	public final fun enqueue (Lokhttp3/mockwebserver/MockResponse;)V
	public final fun getBodyLimit ()J
	public final fun getDelegate ()Lmockwebserver3/MockWebServer;
	public final fun getDispatcher ()Lokhttp3/mockwebserver/Dispatcher;

 *  Fix: Skip early hints (status code 103) responses.
 *  Fix: Don't log sensitive headers in `Request.toString()`.
 *  Fix: Don't crash when the dispatcher's `ExecutorService` is shutdown with many
    calls still enqueued.
 *  Upgrade: [GraalVM 22][graalvm_22].
 *  Upgrade: [Kotlin 1.7.10][kotlin_1_7_10].


## Version 5.0.0-alpha.10

_2022-06-26_

		Help:      "Total number of objects queued for replication in the last full minute",
		Type:      gaugeMetric,
	}
}

func getClusterReplCurrQueuedBytesMD() MetricDescription {
	return MetricDescription{
		Namespace: nodeMetricNamespace,
		Subsystem: replicationSubsystem,
		Name:      currInQueueBytes,
		Help:      "Total number of bytes queued for replication in the last full minute",

			sm.ActiveWorkers.Max += peer.ActiveWorkers.Max
		}
		sm.Queued.Avg.Bytes += peer.Queued.Avg.Bytes
		sm.Queued.Avg.Count += peer.Queued.Avg.Count
		sm.Queued.Curr.Bytes += peer.Queued.Curr.Bytes
		sm.Queued.Curr.Count += peer.Queued.Curr.Count
		if peer.Queued.Max.Count > sm.Queued.Max.Count {
			sm.Queued.Max.Bytes = peer.Queued.Max.Bytes
			sm.Queued.Max.Count = peer.Queued.Max.Count
		}
		sm.ReplicaCount += peer.ReplicaCount

 * try (Response response = call.execute()) {
 * ... // Use the response.
 * }
 * ```
 *
 * You can use a similar block for asynchronous calls:
 *
 * ```java
 * Call call = client.newCall(request);
 * call.enqueue(new Callback() {
 *   public void onResponse(Call call, Response response) throws IOException {
 *     try (ResponseBody responseBody = response.body()) {
 *     ... // Use the response.
 *     }
 *   }
 *

    a stream timeout to determine whether the connection should remain eligible for pooling.


## Version 3.14.4

_2019-09-29_

 *  Fix: Cancel calls that fail due to unexpected exceptions. We had a bug where an enqueued call
    would never call back if it crashed with an unchecked throwable, such as a
    `NullPointerException` or `OutOfMemoryError`. We now call `Callback.onFailure()` with an