Set encoding and blooms on meta as default. Also shutdown access to the
initial meta schema creating method; get from TableDescriptors if you
need access to schema or edit it as you would any other table if you
want to edit it.
Co-authored-by: Michael Stack <stack@apache.org>
Signed-off-by: Andrew Purtell <apurtell@apache.org>
Trace table ExecService invocations as table operations. Ensure span relationships for both table
and master invocations.
Signed-off-by: Andrew Purtell <apurtell@apache.org>
This is a demonstration of visualization of regions on the cluster. The visualization is a stacked
bar chart showing total storefile size per table per region server, with the x-axis being server
names, the y-axis being storfile size, and the bars stacked per table. The visualization is
generated entirely on the fly from within the browser, implemented using Vega Lite. So far, Vega
appears to handle rendering this visualization for a cluster of over 700 region servers with
approximately 300,000 regions.
Per [0], include an update to the top-level LICENSE.txt. Also update LICENSE files in all binary
distributions (i.e., jars), by way of LICENSE.vm. Vega uses a BSD 3-clause variant without
advertising clause, and as such is a "Category A" license, per [1].
No changes are made to the NOTICE files, as per the existing example of bundling the minified
JQuery, which is also a Category A license.
[0]: https://infra.apache.org/licensing-howto.html
[1]: https://www.apache.org/legal/resolved.html#category-a
Signed-off-by: Andrew Purtell <apurtell@apache.org>
Publishes a set of JSON endpoints following a RESTful structure, which expose a subset of the
`o.a.h.h.ClusterMetrics` object tree. The URI structure is as follows
/api/v1/admin/cluster_metrics
/api/v1/admin/cluster_metrics/live_servers
/api/v1/admin/cluster_metrics/dead_servers
Signed-off-by: Sean Busbey <busbey@apache.org>
Signed-off-by: Andrew Purtell <apurtell@apache.org>
Change the timing of the test but not the objective by storing three large
MOB values into the row with three separate puts, each randomizing the
data. Increases running time of the testGetMassive case 2x but avoids OOME
in the test environment where the OOME was consistently reproductable.
Signed-off-by: Duo Zhang <zhangduo@apache.org>
Signed-off-by: Pankaj Kumar <pankajkumar@apache.org>
Avoid the pattern where a Random object is allocated, used once or twice, and
then left for GC. This pattern triggers warnings from some static analysis tools
because this pattern leads to poor effective randomness. In a few cases we were
legitimately suffering from this issue; in others a change is still good to
reduce noise in analysis results.
Use ThreadLocalRandom where there is no requirement to set the seed to gain
good reuse.
Where useful relax use of SecureRandom to simply Random or ThreadLocalRandom,
which are unlikely to block if the system entropy pool is low, if we don't need
crypographically strong randomness for the use case. The exception to this is
normalization of use of Bytes#random to fill byte arrays with randomness.
Because Bytes#random may be used to generate key material it must be backed by
SecureRandom.
Signed-off-by: Duo Zhang <zhangduo@apache.org>
bsglz
d-c-manning
Xiaolin Ha
Duo Zhang
huaxiangsun
Wellington Ramos Chevreuil
Bryan Beaudreault
chenglei
Nick Dimiduk
huiruan
meiyi
Ruanhui
Andrew Purtell
Rushabh Shah