I have no idea to fix [io.netty.channel.AbstractChannel] Force-closing a channel whose registration task was not accepted by an event loop

[贾陆华]

My neo4j vesion is: neo4j-enterprise-3.0.4 trail version, when i delete all 12W node from http page, it fail, and then i want to connect by jdbc, it fails and log out the following exception,

Does anyone help me? I will try to restart neo4j server.

Someone also ask this question on netty github project. Netty developer's reply: it's the server's bug, not netty's.

java.sql.SQLException: org.neo4j.driver.v1.exceptions.ClientException: Failed to establish SSL socket connection.

at org.neo4j.jdbc.bolt.BoltDriver.connect(BoltDriver.java:67)

at java.sql.DriverManager.getConnection(DriverManager.java:664)

at java.sql.DriverManager.getConnection(DriverManager.java:208)

at test_graphdb.test.TestTask.<init>(TestTask.java:100)

at test_graphdb.test.RunTest.testOp(RunTest.java:87)

at test_graphdb.test.RunTest.main(RunTest.java:60)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:498)

at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)

Caused by: org.neo4j.driver.v1.exceptions.ClientException: Failed to establish SSL socket connection.

at org.neo4j.driver.internal.connector.socket.TLSSocketChannel.unwrap(TLSSocketChannel.java:179)

at org.neo4j.driver.internal.connector.socket.TLSSocketChannel.runHandshake(TLSSocketChannel.java:127)

at org.neo4j.driver.internal.connector.socket.TLSSocketChannel.<init>(TLSSocketChannel.java:95)

at org.neo4j.driver.internal.connector.socket.TLSSocketChannel.<init>(TLSSocketChannel.java:77)

at org.neo4j.driver.internal.connector.socket.TLSSocketChannel.<init>(TLSSocketChannel.java:70)

at org.neo4j.driver.internal.connector.socket.SocketClient$ChannelFactory.create(SocketClient.java:235)

at org.neo4j.driver.internal.connector.socket.SocketClient.start(SocketClient.java:74)

at org.neo4j.driver.internal.connector.socket.SocketConnection.<init>(SocketConnection.java:63)

at org.neo4j.driver.internal.connector.socket.SocketConnector.connect(SocketConnector.java:52)

at org.neo4j.driver.internal.pool.InternalConnectionPool$1.allocate(InternalConnectionPool.java:191)

at org.neo4j.driver.internal.pool.InternalConnectionPool$1.allocate(InternalConnectionPool.java:180)

at org.neo4j.driver.internal.pool.ThreadCachingPool.allocate(ThreadCachingPool.java:212)

at org.neo4j.driver.internal.pool.ThreadCachingPool.acquireFromGlobal(ThreadCachingPool.java:164)

at org.neo4j.driver.internal.pool.ThreadCachingPool.acquire(ThreadCachingPool.java:118)

at org.neo4j.driver.internal.pool.InternalConnectionPool.acquire(InternalConnectionPool.java:109)

at org.neo4j.driver.internal.InternalDriver.session(InternalDriver.java:53)

at org.neo4j.jdbc.bolt.BoltDriver.connect(BoltDriver.java:63)

... 10 more

neo4j server log:

2016-10-11 06:49:01.813+0000 WARN  [io.netty.channel.AbstractChannel] Force-closing a channel whose registration task was not accepted by an event loop: [id: 0x924ae113, /127.0.0.1:53481 => /127.0.0.1:7687]

2016-10-11 06:49:01.813+0000 ERROR [io.netty.util.concurrent.DefaultPromise.rejectedExecution] Failed to submit a listener notification task. Event loop shut down? event executor terminated

java.util.concurrent.RejectedExecutionException: event executor terminated

        at io.netty.util.concurrent.SingleThreadEventExecutor.reject(SingleThreadEventExecutor.java:707)

        at io.netty.util.concurrent.SingleThreadEventExecutor.addTask(SingleThreadEventExecutor.java:299)

        at io.netty.util.concurrent.SingleThreadEventExecutor.execute(SingleThreadEventExecutor.java:690)

        at io.netty.util.concurrent.DefaultPromise.execute(DefaultPromise.java:671)

        at io.netty.util.concurrent.DefaultPromise.notifyLateListener(DefaultPromise.java:641)

        at io.netty.util.concurrent.DefaultPromise.addListener(DefaultPromise.java:138)

        at io.netty.channel.DefaultChannelPromise.addListener(DefaultChannelPromise.java:93)

        at io.netty.channel.DefaultChannelPromise.addListener(DefaultChannelPromise.java:28)

        at io.netty.bootstrap.ServerBootstrap$ServerBootstrapAcceptor.channelRead(ServerBootstrap.java:251)

        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)

        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)

        at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:846)

        at io.netty.channel.nio.AbstractNioMessageChannel$NioMessageUnsafe.read(AbstractNioMessageChannel.java:93)

        at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511)

        at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)

        at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)

        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)

        at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)

        at java.lang.Thread.run(Thread.java:745)

[Michael Hunger]

What do you mean by: 12W node ?

How do you delete them?

What is your memory configuration?

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[Luhua Jia]

I use this cypher "match(n) detach delete n;" to delete all my test data.

I a not change memory configuration. It's just 256M or 512M heap size default?

在 2016年10月17日星期一 UTC+8上午7:48:00，Michael Hunger写道：

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