Release 1.3

• Breaking changes (!)
  #26 Remove skipPreviouslyParsed config option

• Enhancements
  #25 Support Hadoop 3 FSImage (aka 'Unsupported layout version -64') and update to HFSA lib 1.2.0
  #14 Update dependencies
  #24 Refactor code from synchronized/Collections.synchronizedMap to LongAdder/ConcurrentHashMap
  #23 Use ISO8601 for log event time
  #19,#16 Update docker base image
  #7 Switch from jetty to Java internal web server

• Bugfixes
  #27 Ignore non-existent dir(s) when computing path based stats
  #22 Fix NPE on empty FSImage

release-1.2

This release enhances the performance and updates dependencies.

• Enhancements
  #14 Update dependencies

  • de.m3y.hadoop.hdfs.hfsa:hfsa-lib : 1.1.1 -> 1.1.3
    Improved performance, but also requires ~8MiB/1M inodes more memory
  • snakeyml 1.18 -> 1.20
  • simpleclient 0.0.26 -> 0.3.0

  #15 Update and pin docker base image version (from 8u131-jre-alpine to 8u151-jre-alpine3.7)

Prometheus Hadoop HDFS FSImage Exporter 1.1

This release contains lots of features such as new metrics, background parsing (no scrape blocking) and performance enhancements.

• Enhancements
  #1 Parse FSImage in background. No scrape blocking.
  #2 Make histogram buckets configurable
  #3 Export directory path based stats
  #4 Use simpleclient hotspot for JVM exporter metrics instead of custom metric
  #5 Export fsimage size metric
  #6 Make export of file size metric type configurable as Summary or Histogram (distribution).
  #8 Update hfsa lib to 1.1.x - huge perfomance improvement
  #9 Upgrade embedded jetty to 8.1.22
  #12 Provide docker image for exporter
  #13 Export file replication metric

• Misc:
  #10 Add micro benchmark (and stress) test for exporter

For further details, check the issues fixed.

Available via Maven Central with GAV coordinates de.m3y.prometheus.exporter.fsimage:fsimage-exporter:1.1 or as Docker image.