* Take advantage of the fact that OpenTelemetry can read its configuration from environment
variables and make use of this where possible, only falling back to passing properties into the
process launch configuration when it's necessary. DRY up tracing configuration and make it
easier to manage in a container environment.
* Replace `HBASE_TRACE_OPTS`, which used to act as both a feature flag and a baseline for
configuration shared across processes. Instead, use `HBASE_OTEL_TRACING_ENABLED` as a feature
flag, and let configuration reuse be handled via the environment variables that otel supports
naively.
* Add further explanation for how to write your configuration for our different deployment
modes (standalone, pseudo-distributed, fully distributed) and in different environments.
Signed-off-by: Duo Zhang <zhangduo@apache.org>
Signed-off-by: Andrew Purtell <apurtell@apache.org>
Exposes process-specific tracing arguments for most of the commands that we can launch from
`bin/hbase`. In addition to serving as an on/off flag, `HBASE_TRACE_OPTS` acts as the site-wide
configuration setting. Additional variables are provided for each applicable command, giving
operators fine-grain control over which processes participate in the tracing system, and to what
degree.
Signed-off-by: Tak Lon (Stephen) Wu <taklwu@apache.org>
Signed-off-by: Josh Elser <elserj@apache.org>
Simplify the new user experience shipping a configuration that enables
a fresh checkout or tarball distribution to run in standalone mode
without direct user configuration. This change restores the behavior
we had when running on Hadoop 2.8 and earlier.
Patch for master includes an update to the book. This change will be
omitted when backporting to earlier branches.
Signed-off-by: stack <stack@apache.org>
Signed-off-by: Josh Elser <elserj@apache.org>
Signed-off-by: Duo Zhang <zhangduo@apache.org>
Per comments in Jira, be explicit about what collector we
use. Existing code simply hard-codes HBASE_OPTS in
`conf/hbase-env.sh`. We now need to be a little more clever than this,
so moves the definition into `bin/hbase`. Also consolidates logic
around JVM version detection into a reusable function.
This change also changes how we set `HBASE_OPTS`. Before, we would
accept an operator's value, but always append our GC
prescription. After this change, we defer entirely to the operator's
choice, only applying our values when they've not specified their
intentions.
Signed-off-by: stack <stack@apache.org>
Signed-off-by: Sean Busbey <busbey@apache.org>
- Moved DrainingServerTracker and RegionServerTracker to hbase-server:o.a.h.h.master.
- Moved SplitOrMergeTracker to oahh.master (because it depends on a PB)
- Moving hbase-client:oahh.zookeeper.* to hbase-zookeeper module. After HBASE-19200, hbase-client doesn't need them anymore (except 3 classes).
- Renamed some classes to use a consistent naming for classes - ZK instead of mix of ZK, Zk , ZooKeeper. Couldn't rename following public classes: MiniZooKeeperCluster, ZooKeeperConnectionException. Left RecoverableZooKeeper for lack of better name. (suggestions?)
- Sadly, can't move tests out because they depend on HBaseTestingUtility (which defeats part of the purpose - trimming down hbase-server tests. We need to promote more use of mocks in our tests)
We have an awesome community resource in our online book. It's maintained and looked after with
diligence. We also have an HBase section on the hadoop wiki that hasn't been updated since 2012.
Let's sift through the pages of the wiki, bring over any content that's still relevant and
not already present in the book, and kill the wiki.
Nick Dimiduk
Tak Lon (Stephen) Wu
Duo Zhang
Toshihiro Suzuki
Sergey Shelukhin
Pankaj
han.congcong
Jan Hentschel
Michael Stack
Nihal Jain
Apekshit Sharma
Vikas Vishwakarma
Andrew Purtell
Umesh Agashe
Jerry He
Elliott Clark
Alex Moundalexis
Misty Stanley-Jones
Sean Busbey
Enis Soztutar
Mikhail Antonov
Andrey Stepachev
Lars George
Andrey Stepachev
Ashish Singhi
Patrick White
Jimmy Xiang
Ted Yu