Package com.linkedin.venice.listener

Class ServerConnectionStatsHandler

java.lang.Object
io.netty.channel.ChannelHandlerAdapter
io.netty.channel.ChannelInboundHandlerAdapter
com.linkedin.venice.listener.ServerConnectionStatsHandler
All Implemented Interfaces:
io.netty.channel.ChannelHandler, io.netty.channel.ChannelInboundHandler
@Sharable public class ServerConnectionStatsHandler extends io.netty.channel.ChannelInboundHandlerAdapter

  • Nested Class Summary

    Nested classes/interfaces inherited from interface io.netty.channel.ChannelHandler

    io.netty.channel.ChannelHandler.Sharable

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final io.netty.util.AttributeKey<Boolean>
    CHANNEL_ACTIVATED
     
    static final io.netty.util.AttributeKey<Long>
    CHANNEL_INIT_START_TS
     

  • Constructor Summary

    Constructors
    Constructor
    Description
    ServerConnectionStatsHandler(IdentityParser identityParser, ServerConnectionStats serverConnectionStats, String routerPrincipalName, LogContext logContext)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    channelActive(io.netty.channel.ChannelHandlerContext ctx)
     
    void
    channelInactive(io.netty.channel.ChannelHandlerContext ctx)
     
    protected io.netty.handler.ssl.SslHandler
    extractSslHandler(io.netty.channel.ChannelHandlerContext ctx)
     
    void
    userEventTriggered(io.netty.channel.ChannelHandlerContext ctx, Object evt)
    On SSL handshake completion, compute the setup latency and store it in a channel attribute.

    Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter

    channelRead, channelReadComplete, channelRegistered, channelUnregistered, channelWritabilityChanged, exceptionCaught

    Methods inherited from class io.netty.channel.ChannelHandlerAdapter

    ensureNotSharable, handlerAdded, handlerRemoved, isSharable

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    Methods inherited from interface io.netty.channel.ChannelHandler

    handlerAdded, handlerRemoved

  • Field Details

    • CHANNEL_ACTIVATED

      public static final io.netty.util.AttributeKey<Boolean> CHANNEL_ACTIVATED

    • CHANNEL_INIT_START_TS

      public static final io.netty.util.AttributeKey<Long> CHANNEL_INIT_START_TS

  • Constructor Details

  • Method Details

    • channelActive

      public void channelActive(io.netty.channel.ChannelHandlerContext ctx) throws Exception
      Specified by:
      channelActive in interface io.netty.channel.ChannelInboundHandler
      Overrides:
      channelActive in class io.netty.channel.ChannelInboundHandlerAdapter
      Throws:
      Exception

    • userEventTriggered

      public void userEventTriggered(io.netty.channel.ChannelHandlerContext ctx, Object evt) throws Exception
      On SSL handshake completion, compute the setup latency and store it in a channel attribute. The latency is recorded (both Tehuti and OTel) from the connectionScanner after the connection source is identified — same place as connection count metrics. This avoids blocking the Netty event loop with certificate parsing while providing per-source latency breakdowns.
      Specified by:
      userEventTriggered in interface io.netty.channel.ChannelInboundHandler
      Overrides:
      userEventTriggered in class io.netty.channel.ChannelInboundHandlerAdapter
      Throws:
      Exception

    • channelInactive

      public void channelInactive(io.netty.channel.ChannelHandlerContext ctx) throws Exception
      Specified by:
      channelInactive in interface io.netty.channel.ChannelInboundHandler
      Overrides:
      channelInactive in class io.netty.channel.ChannelInboundHandlerAdapter
      Throws:
      Exception

    • extractSslHandler

      protected io.netty.handler.ssl.SslHandler extractSslHandler(io.netty.channel.ChannelHandlerContext ctx)