Just a curiosity..what is the difference between hbase on hadoop1 or
hadoop2 from a functional point of view?
Does HBase on hadoop2 (Hoya?) rely on YARN features?
On Tue, Sep 23, 2014 at 8:15 PM, James Taylor jamestay...@apache.org
wrote:
We'll definitely remove hadoop1 support from 4.x, as
Hi,
Is it possible to run sub-queries with Phoenix? Something like this:
select * from metadata n where L = 1 AND R = (select max(R) from
metadata z where n.A = z.A);
Goel is to get all lignes where L=1 and R=max. Field A is the key.
Thanks,
JM
Hi,
Is it possible to create a view on and existing HBase table and describe
the composite key?
I don't see anything about that in the doc
http://phoenix.apache.org/views.html but it also doesn't say that it's not
possible.
Would like to do something like that:
CREATE VIEW t1 ( USER
Hi JM,
Sure, you'd do that like this:
CREATE VIEW t1 ( USER unsigned_long,
ID unsigned_long,
VERSION unsigned_long,
f1.A unsigned_long,
f1.R unsigned_long,
f1.L unsigned_long,
f1.W unsigned_long,
f1.P bigint,
f1.N varchar,
f1.E varchar,
f1.S unsigned_long,
f1.M
Oh nice! Thanks for this example!
JM
2014-09-24 11:50 GMT-04:00 James Taylor jamestay...@apache.org:
Hi JM,
Sure, you'd do that like this:
CREATE VIEW t1 ( USER unsigned_long,
ID unsigned_long,
VERSION unsigned_long,
f1.A unsigned_long,
f1.R unsigned_long,
f1.L unsigned_long,
The salt byte is the first byte in your row key and that's the max
value for a byte (i.e. it'll be 0-255).
On Wed, Sep 24, 2014 at 10:12 AM, Krishna research...@gmail.com wrote:
Hi,
According to Phoenix documentation
Phoenix provides a way to transparently salt the row key with a salting
Thanks... any plans of raising number of bytes for salt value?
On Wed, Sep 24, 2014 at 10:22 AM, James Taylor jamestay...@apache.org
wrote:
The salt byte is the first byte in your row key and that's the max
value for a byte (i.e. it'll be 0-255).
On Wed, Sep 24, 2014 at 10:12 AM, Krishna
Would you be able to talk about your use case a bit and explain why you'd
need this to be higher?
Thanks,
James
On Wednesday, September 24, 2014, Krishna research...@gmail.com wrote:
Thanks... any plans of raising number of bytes for salt value?
On Wed, Sep 24, 2014 at 10:22 AM, James Taylor
Hi Abe,
The expected behavior should be pushing the LIMIT to a (since it's left
outer join) while checking the limit again against the final joined
results. But it does not work as expected, it should be bug.
Could you please verify it and report an issue with a test case attached?
Thanks,
Hi,
We have something like this that we want to translate into Phoenix
(snippet):
RETURN QUERY WITH RECURSIVE first_level AS (
-- non-recursive term
(
SELECT a.id AS id FROM asset a
WHERE a.parent_id = p_id AND TYPE = 2
)
UNION
-- Recursive Term
SELECT a.id AS id FROM
Hi Vijay,
I think here the query plan is scanning table *CUSTOMER_3 *while
joining the other two tables at the same time, which means the region
server memory for Phoenix should be large enough to hold 2 tables together
and you also need to expect some memory expansion for java objects.
Do
50 Region Servers for 100 TB such that each RS serves 10 regions (500
regions).
At this stage, we haven't evaluated the impact on query latency when
running with fewer regions, for ex., 50 RS and 250 regions.
On Wed, Sep 24, 2014 at 11:50 AM, James Taylor jamestay...@apache.org
wrote:
Would
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