0
嘗試使用Redis模擬重負載情況(僅限默認配置)。 爲了簡單起見,當立即執行multi時,關閉連接。爲連接到Redis的大量Vertx引發的異常
import io.vertx.core.*;
import io.vertx.core.json.Json;
import io.vertx.redis.RedisClient;
import io.vertx.redis.RedisOptions;
import io.vertx.redis.RedisTransaction;
class MyVerticle extends AbstractVerticle {
private int index;
public MyVerticle(int index) {
this.index = index;
}
private void run2() {
RedisClient client = RedisClient.create(vertx, new RedisOptions().setHost("127.0.0.1"));
RedisTransaction tr = client.transaction();
tr.multi(ev2 -> {
if (ev2.succeeded()) {
tr.exec(ev3 -> {
if (ev3.succeeded()) {
tr.close(i -> {
if (i.failed()) {
System.out.println("FAIL TR CLOSE");
client.close(j -> {
if (j.failed()) {
System.out.println("FAIL CLOSE");
}
});
}
});
}
else {
System.out.println("FAIL EXEC");
tr.close(i -> {
if (i.failed()) {
System.out.println("FAIL TR CLOSE");
client.close(j -> {
if (j.failed()) {
System.out.println("FAIL CLOSE");
}
});
}
});
}
});
}
else {
System.out.println("FAIL MULTI");
tr.close(i -> {
if (i.failed()) {
client.close(j -> {
if (j.failed()) {
System.out.println("FAIL CLOSE");
}
});
}
});
}
});
}
@Override
public void start(Future<Void> startFuture) {
long timerID = vertx.setPeriodic(1, new Handler<Long>() {
public void handle(Long aLong) {
run2();
}
});
}
@Override
public void stop(Future stopFuture) throws Exception {
System.out.println("MyVerticle stopped!");
}
}
public class Periodic {
public static void main(String[] args) {
Vertx vertx = Vertx.vertx();
for (int i = 0; i < 8000; i++) {
vertx.deployVerticle(new MyVerticle(i));
}
}
}
儘管連接已正確關閉,但仍然出現警告錯誤。 甚至在我把更多的邏輯放在多個之前,它們都被拋出。
2017-06-20 16:29:49 WARNING io.netty.util.concurrent.DefaultPromise notifyListener0 An exception was thrown by io.vertx.core.net.impl.ChannelProvider$$Lambda$61/1899599620.operationComplete()
java.lang.IllegalStateException: Uh oh! Event loop context executing with wrong thread! Expected null got Thread[globalEventExecutor-1-2,5,main]
at io.vertx.core.impl.ContextImpl.lambda$wrapTask$2(ContextImpl.java:316)
at io.vertx.core.impl.ContextImpl.executeFromIO(ContextImpl.java:193)
at io.vertx.core.net.impl.NetClientImpl.failed(NetClientImpl.java:258)
at io.vertx.core.net.impl.NetClientImpl.lambda$connect$5(NetClientImpl.java:233)
at io.vertx.core.net.impl.ChannelProvider.lambda$connect$0(ChannelProvider.java:42)
at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:507)
at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:481)
at io.netty.util.concurrent.DefaultPromise.access$000(DefaultPromise.java:34)
at io.netty.util.concurrent.DefaultPromise$1.run(DefaultPromise.java:431)
at io.netty.util.concurrent.GlobalEventExecutor$TaskRunner.run(GlobalEventExecutor.java:233)
at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
at java.lang.Thread.run(Thread.java:745)
是否有這個錯誤的原因?
爲什麼你創造8000個垂直軸? – tsegismont
來模擬併發請求/事務(在prod中,我們可能會以2000結束)。不管數量多少,錯誤都不應該發生,對吧? – user5733033
即使有500個垂直軸,頻率爲100ms,我們仍然會得到錯誤。 – user5733033