github OpenTSDB/opentsdb v2.2.0RC1
OpenTSDB 2.2.0 RC1

latest releases: v2.4.1, v2.4.0, v2.3.2...
pre-release8 years ago
  • Version 2.2.0 RC1 (2015-09-12)

Noteworthy Changes:

  • Add the option to randomly assign UIDs to metrics to improve distribution across
    HBase region servers.
  • Introduce salting of data to improve distribution of high cardinality regions
    across region servers.
  • Introduce query stats for tracking various timings related to TSD queries.
  • Add more stats endpoints including /threads, /jvm and /region_clients
  • Allow for deleting UID mappings via CLI or the API
  • Name the various threads for easier debugging, particularly for distinguishing
    between TSD and AsyncHBase threads.
  • Allow for pre-fetching all of the meta information for the tables to improve
    performance.
  • Update to the latest AsyncHBase with support for secure HBase clusters and RPC
    timeouts.
  • Allow for overriding metric and tag widths via the config file. (Be careful!)
  • URLs from the API are now relative instead of absolute, allowing for easier reverse
    proxy use.
  • Allow for percent deviation in the Nagios check
  • Let queries skip over unknown tag values that may not exist yet (via config)
  • Add various query filters such as case (in)sensitive pipes, wildcards and pipes
    over tag values. Filters do not work over metrics at this time.
  • Add support for writing data points using Appends in HBase as a way of writing
    compacted data without having to read and re-write at the top of each hour.
  • Introduce an option to emit NaNs or Nulls in the JSON output when downsampling and
    a bucket is missing values.
  • Introduce query time flags to show the original query along with some timing stats
    in the response.
  • Introduce a storage exception handler plugin that will allow users to spool or
    requeue data points that fail writes to HBase due to various issues.
  • Rework the HTTP pipeline to support plugins with RPC implementations.
  • Allow for some style options in the Gnuplot graphs.
  • Allow for timing out long running HTTP queries.
  • Text importer will now log and continue bad rows instead of failing.
  • New percentile and count aggregators.
  • Add the /api/annotations endpoint to fetch multiple annotations in one call.
  • Add a class to support improved bulk imports by batching requests in memory for a
    full hour before writing.

Bug Fixes:

  • Modify the .rpm build to allow dashes in the name.
  • Allow the Nagios check script to handle 0 values properly in checks.
  • Fix FSCK where floating point values were not processed correctly (#430)
  • Fix missing information from the /appi/uid/tsmeta calls (#498)
  • Fix more issues with the FSCK around deleting columns that were in the list (#436)
  • Avoid OOM issues over Telnet when the sending client isn't reading errors off it's
    socket fast enough by blocking writes.

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