Ufuk Celebi created FLINK-4269:
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Summary: Decrease log level in RuntimeMonitorHandler
Key: FLINK-4269
URL: https://issues.apache.org/jira/browse/FLINK-4269
Project: Flink
Issue Type: Improvement
Components: Webfrontend
Affects Versions: 1.1.0
Reporter: Ufuk Celebi
Priority: Minor
Having a browser window open which points to a page of an unavailable job (for
example from a previous cluster setup) leads to many log warning messages like
this in the job manager log file:
{code}
2016-06-30 10:50:55,812 WARN
org.apache.flink.runtime.webmonitor.RuntimeMonitorHandler - Error while
handling request
org.apache.flink.runtime.webmonitor.NotFoundException: Could not find job with
id 343bd3c0c7415370d79e04f305b5a2e9
at
org.apache.flink.runtime.webmonitor.handlers.AbstractExecutionGraphRequestHandler.handleRequest(AbstractExecutionGraphRequestHandler.java:58)
at
org.apache.flink.runtime.webmonitor.RuntimeMonitorHandler.respondAsLeader(RuntimeMonitorHandler.java:135)
at
org.apache.flink.runtime.webmonitor.RuntimeMonitorHandler.channelRead0(RuntimeMonitorHandler.java:112)
at
org.apache.flink.runtime.webmonitor.RuntimeMonitorHandler.channelRead0(RuntimeMonitorHandler.java:60)
at
io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)
at io.netty.handler.codec.http.router.Handler.routed(Handler.java:62)
at
io.netty.handler.codec.http.router.DualAbstractHandler.channelRead0(DualAbstractHandler.java:57)
at
io.netty.handler.codec.http.router.DualAbstractHandler.channelRead0(DualAbstractHandler.java:20)
at
io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)
at
org.apache.flink.runtime.webmonitor.HttpRequestHandler.channelRead0(HttpRequestHandler.java:104)
at
org.apache.flink.runtime.webmonitor.HttpRequestHandler.channelRead0(HttpRequestHandler.java:65)
at
io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)
at
io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:242)
at
io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:147)
at
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)
at
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)
at
io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:847)
at
io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:131)
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$2.run(SingleThreadEventExecutor.java:111)
at
io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:137)
{code}
Since the REST API calls are refreshed every X seconds, this can lead to quite
some log pollution. We might consider decreasing the log level to DEBUG or
TRACE even.
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