biandeqiang created IGNITE-16741:
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Summary: DoS attacks on ignite ports
Key: IGNITE-16741
URL: https://issues.apache.org/jira/browse/IGNITE-16741
Project: Ignite
Issue Type: Bug
Affects Versions: 2.11.1
Reporter: biandeqiang
DoS attacks on ignite's TcpCommunicationSpi and TcpDiscoverySpi's ports
The ignite I use is embedded,ignite uses two ports, When I was testing a dos
attack on the port, ignite had java.lang.OutOfMemoryError: Direct buffer memory.
TcpDiscoverySpi spi = new TcpDiscoverySpi();
spi.setLocalPort("port")
TcpCommunicationSpi ipCom = new TcpCommunicationSpi();
ipCom.setLocalPort("port")
{{[2021-12-01 14:12:59,056][WARN
][0][0][grid-nio-worker-tcp-comm-4-#43%TcpCommunicationSpi%][ROOT][IgniteLoggerImp][88]
Caught unhandled exception in NIO worker thread (restart the node).
java.lang.OutOfMemoryError: Direct buffer memory
at java.nio.Bits.reserveMemory(Bits.java:695)
at java.nio.DirectByteBuffer.<init>(DirectByteBuffer.java:123)
at java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:311)
at
org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.register(GridNioServer.java:2672)
at
org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.bodyInternal(GridNioServer.java:2089)
at
org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.body(GridNioServer.java:1910)
at org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:120)
at java.lang.Thread.run(Thread.java:748)}}
I hope Ignite can also add MaxConnect as Tomcat and set a counter. If the
counter exceeds the value, wait for several seconds.{{{}{}}}
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