Thanks for pointing to Lily. I read about it, but it seems to add
significant additional infrastructure, which I am trying to avoid out of
fear of adding unwanted complexity. That may be unjustified, and I may
need to take another look.
Henning
On 22.12.2013 17:41, Anoop John wrote:
HIndex is local indexing mechanism. It is per region indexing. Pheonix is
not yet having a local indexing mechanism.(Global indexing is in
place) Phoenix team do have roadmap for that.
You have done some thing like Lily Henning?
-Anoop-
m
On Sun, Dec 22, 2013 at 9:39 PM, Ted Yu <[email protected]> wrote:
The library from Huawei is the basis for HBASE-10222
Rajeshbabu works for Huawei.
Cheers
On Sun, Dec 22, 2013 at 8:00 AM, Pradeep Gollakota <[email protected]
wrote:
I lied in my previous email... it doesn't look like Phoenix uses HIndex.
On Sun, Dec 22, 2013 at 3:53 PM, Pradeep Gollakota <[email protected]
wrote:
Take a look at this library from Huawei. They went a step further to
colocate the index with the primary partition. I believe Phoenix uses
it
for its indexing.
https://github.com/Huawei-Hadoop/hindex
On Sun, Dec 22, 2013 at 1:34 PM, Ted Yu <[email protected]> wrote:
Rajeshbabu is working on HBASE-10222 which adds support of secondary
index to HBASE core.
FYI
On Dec 22, 2013, at 2:11 AM, Henning Blohm <[email protected]>
wrote:
Lately we have added a secondary index feature to a persistence tier
over HBASE. Essentially we implemented what is described as
"Dual-Write
Secondary Index" in
http://hbase.apache.org/book/secondary.indexes.html
.
I.e. while updating an entity, actually before writing the actual
update,
indexes are updated. Lookup via the index ignores stale entries. A
recurring rebuild and clean out of stale entries takes care the
indexes
are
trimmed and accurate.
None of this was terribly complex to implement. In fact, it seemed
like
something you could do generically, maybe not on the HBASE level
itself,
but as a toolbox / utility style library.
Is anybody on the list aware of anything useful already existing in
that space?
Thanks,
Henning Blohm
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*ZFabrik Software KG*
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F: +49 6227 3984254
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