in
/var/log/hadoop/hdfs/hadoop-hdfs-namenode-HOST.log
I see exceptions like:
2018-03-10 11:41:49,566 INFO ipc.Server (Server.java:doRead(1006)) - Socket Reader #1 for port 8020: readAndProcess from client CLIENT_HOST threw exception [java.io.IOException: Connection reset by peer]
java.io.IOException: Connection reset by peer
at sun.nio.ch.FileDispatcherImpl.read0(Native Method)
at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39)
at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223)
at sun.nio.ch.IOUtil.read(IOUtil.java:197)
at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380)
at org.apache.hadoop.ipc.Server.channelRead(Server.java:2930)
at org.apache.hadoop.ipc.Server.access$3000(Server.java:138)
at org.apache.hadoop.ipc.Server$Connection.readAndProcess(Server.java:1741)
at org.apache.hadoop.ipc.Server$Listener.doRead(Server.java:995)
at org.apache.hadoop.ipc.Server$Listener$Reader.doRunLoop(Server.java:852)
at org.apache.hadoop.ipc.Server$Listener$Reader.run(Server.java:823)
Is there a way to plot the average number of execeptions in a time window?
Does it already exist?