Fix helper class used in StdDev test, tighten error margins and add tests.

Signed-off-by: Benoit Sigoure <tsunanet@gmail.com>
Remove the need for explicit row locks when allocating UIDs.

The existing code with explicit row locks exhibited very poor
performance, and also prevented multiple TSDs from allocating
UIDs concurrently.

The new approach consists in:
  1. Performing an atomic increment to grab a new UID.
  2. CAS'ing (CompareAndSet) the reverse mapping (uid => name)
  3. CAS'ing the forward mapping (name => uid)

If we die after step 1, we waste an UID.  If we die after step 2,
we just end up with an orphaned reverse mapping (harmless).  When
two TSDs race to assign a UID to the same name, one of them will
fail to CAS the forward mapping at step 3, and will retry to find
the UID assigned by the winning TSD.  When that occurs, the only
net consequence is that a UID will have been wasted by the losing
TSD, whereas the previous implementation wouldn't waste one when
this happened.  The 'uid fsck' command can easily detect orphaned
or wasted UIDs, and we could conceivably put them on some kind of
a free list in the future to re-allocate them.

If two TSDs are running side-by-side, and one uses the old method
while the other uses the new lock-less method, things still work
as expected.  There are two possible scenarios:
  - Old TSD goes first, locks the MAXID row, and does its thing.
    The new TSD will have to wait until the row lock is released
    for its atomic increment to go through.
  - The new TSD goes first, atomically increments the MAXID row,
    and does its thing.  The second TSD locks the MAXID row and
    proceeds to allocate its own ID concurrently.
Add RTPublisher abstract plugin definition for real time publishing of
data from a TSD. Also implemented unit tests and a dummy plugin implementation.

Signed-off-by: Chris Larsen <clarsen@euphoriaaudio.com>
Add configuration options for RTPublisher plugins

Signed-off-by: Chris Larsen <clarsen@euphoriaaudio.com>
Add RTPublisher plugin to TSD
TSD will load the publisher plugin when initializePlugins() is called
TSD will now publish data points to the plugin if configured

Signed-off-by: Chris Larsen <clarsen@euphoriaaudio.com>
Remove leftover System.out.println from TestTree

Signed-off-by: Chris Larsen <clarsen@euphoriaaudio.com>
Add collectStats method to SearchPlugin and fix up some docs

Signed-off-by: Chris Larsen <clarsen@euphoriaaudio.com>
Add errbacks to search index/delete calls in TSDB to log exceptions

Signed-off-by: Chris Larsen <clarsen@euphoriaaudio.com>
Fix accidental spaces after line breaks in makefile

Signed-off-by: Chris Larsen <clarsen@euphoriaaudio.com>
Remove unused HBase helpers from TSDB.java

Signed-off-by: Chris Larsen <clarsen@euphoriaaudio.com>
Add files necessary to compile a Debian package
Add default logging and TSD configs for Debian installs
Add "debian" compile option to build a debian package
Modify tsdb.in with a config path variable
Modify tsdb.in to add the config path and other directories to the
classpath when distributed via package

Signed-off-by: Chris Larsen <clarsen@euphoriaaudio.com>
Fix scanner regex in MockBase and simplify it a little
Fix sorting of columns in MockBase by changing the HashMap to a TreeMap. Still
doesn't quite sort on bytes like HBase but it's closer for now.

Signed-off-by: Chris Larsen <clarsen@euphoriaaudio.com>
Fix TestTreeRpc.handleBranchRoot()

Signed-off-by: Chris Larsen <clarsen@euphoriaaudio.com>
Add TSDB.addPoint() unit tests to confirm we're storing data properly

Signed-off-by: Chris Larsen <clarsen@euphoriaaudio.com>
Add TestTsdbQuery.java to unit test the full query path. It includes tests for
different types of queries, aggregators, etc

Signed-off-by: Chris Larsen <clarsen@euphoriaaudio.com>
Fix left over System.out.println in Annotation.java

Signed-off-by: Chris Larsen <clarsen@euphoriaaudio.com>
Fix debian build script where it was copying the links to GWT files
instead of the actual files

Signed-off-by: Chris Larsen <clarsen@euphoriaaudio.com>
Change TSMeta.storeNew() to issue a PUT instead of a CAS to
overwrite any corrupt meta

Signed-off-by: Chris Larsen <clarsen@euphoriaaudio.com>
Convert MockBase to use the ByteMap from Asyncbase instead of the
silly string to byte key conversion. Thanks Tsuna!

Signed-off-by: Chris Larsen <clarsen@euphoriaaudio.com>
Fix bug where exceptions in metasync were disappearing and silently
killing threads. No the exceptions are caught and processing will continue.

Signed-off-by: Chris Larsen <clarsen@euphoriaaudio.com>