Some unknown actor blocks EventLoop by doing blocking IO

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Unluckily this stacktrace doesn't help me anything at all. I've no idea which module is causing this. So I've chosen to report it here. But be aware this could also be caused by RedisQues, RestStorage or our internal app (houston) itself.

2024-06-07T14:36:16,034 snapshot houston WARN BlockedThreadChecker - Thread Thread[vert.x-eventloop-thread-4,5,main] has been blocked for 1246 ms
io.vertx.core.VertxException: Thread blocked
	at sun.nio.ch.FileDispatcherImpl.read0(Native Method) ~[?:?]
	at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39) ~[?:?]
	at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:276) ~[?:?]
	at sun.nio.ch.IOUtil.read(IOUtil.java:233) ~[?:?]
	at sun.nio.ch.IOUtil.read(IOUtil.java:223) ~[?:?]
	at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:356) ~[?:?]
	at io.netty.buffer.PooledByteBuf.setBytes(PooledByteBuf.java:255) ~[netty-buffer-4.1.103.Final.jar:4.1.103.Final]
	at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:1132) ~[netty-buffer-4.1.103.Final.jar:4.1.103.Final]
	at io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:357) ~[netty-transport-4.1.103.Final.jar:4.1.103.Final]
	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:151) ~[netty-transport-4.1.103.Final.jar:4.1.103.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:788) ~[netty-transport-4.1.103.Final.jar:4.1.103.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:724) ~[netty-transport-4.1.103.Final.jar:4.1.103.Final]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:650) ~[netty-transport-4.1.103.Final.jar:4.1.103.Final]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562) ~[netty-transport-4.1.103.Final.jar:4.1.103.Final]
	at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) ~[netty-common-4.1.103.Final.jar:4.1.103.Final]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.103.Final.jar:4.1.103.Final]
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.103.Final.jar:4.1.103.Final]
	at java.lang.Thread.run(Thread.java:829) ~[?:?]