Ksqldb: javax.net.ssl.SSLException: Received fatal alert: internal_error

Tools Graphical tools
1

The following stack trace is displayed in pod’s log:

[ERROR] 2022-04-28 07:39:47,454 [vert.x-eventloop-thread-0] io.confluent.ksql.api.server.ServerVerticle unhandledExceptionHandler - Unhandled exception
javax.net.ssl.SSLException: Received fatal alert: internal_error
        at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:133)
        at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:117)
        at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:339)
        at java.base/sun.security.ssl.Alert$AlertConsumer.consume(Alert.java:293)
        at java.base/sun.security.ssl.TransportContext.dispatch(TransportContext.java:185)
        at java.base/sun.security.ssl.SSLTransport.decode(SSLTransport.java:172)
        at java.base/sun.security.ssl.SSLEngineImpl.decode(SSLEngineImpl.java:681)
        at java.base/sun.security.ssl.SSLEngineImpl.readRecord(SSLEngineImpl.java:636)
        at java.base/sun.security.ssl.SSLEngineImpl.unwrap(SSLEngineImpl.java:454)
        at java.base/sun.security.ssl.SSLEngineImpl.unwrap(SSLEngineImpl.java:433)
        at java.base/javax.net.ssl.SSLEngine.unwrap(SSLEngine.java:637)
        at io.netty.handler.ssl.JdkSslEngine.unwrap(JdkSslEngine.java:92)
        at io.netty.handler.ssl.JdkAlpnSslEngine.unwrap(JdkAlpnSslEngine.java:163)
        at io.netty.handler.ssl.SslHandler$SslEngineType$3.unwrap(SslHandler.java:295)
        at io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1341)
        at io.netty.handler.ssl.SslHandler.decodeJdkCompatible(SslHandler.java:1234)
        at io.netty.handler.ssl.SslHandler.decode(SslHandler.java:1283)
        at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:510)
        at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:449)
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:279)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)
        at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)
        at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)
        at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166)
        at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:722)
        at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:658)
        at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:584)
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:496)
        at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986)
        at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
        at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
        at java.base/java.lang.Thread.run(Thread.java:829)

Application container image: confluentinc/cp-ksqldb-server:7.1.1
Init container image: confluentinc/confluent-init-container:2.3.0

Any ideas?

2

hi @alexei.ivanov . It may help if you provided a bit more context. Are you running Confluent for Kubernetes? How were you running it? Also, is this related to Graphical Tools - and how? (going by which category the post is in). Thanks.