HADOOP-17450 added an API for IOStatistics -anything can be an IOStatistics
source, which can be collected, aggregated, reported (There's a
serializable form). This goes beyond simple counts -we include mins, maxes
and means too
S3A and ABFS support this in their streams, s3a does it for its remot
I have not tried to do this, but as we (Cloudera) deal with more and more
performance related problems, I feel something like this is needed.
It is a tricky problem due to the number of requests the NN handles and how
performance sensitive it is.
At the IPC Server level, we should be able to know
Hi community,
Has someone ever tried to implement sampling logging for ipc Server? We would
like to gain more observability for all of the traffics to the Namenode.
Thanks,
Fengnan
