Hi All,
I have seen that in hbase MD5 is used to generate hash e.g. to create region
name . In deployments MD5 is not considered good because of security issues
related to it. Can we use SHA-512 or make it configurable . Please give your
views.
Regards,
Ashutosh Jindal
When a region splits, the two daughter regions stay on the same host as the
parent region did.
It is through balancing that the daughter regions (may) be assigned to
other server(s).
Cheers
On Wed, Feb 18, 2015 at 7:35 AM, Abe Weinograd a...@flonet.com wrote:
Another question, would this help
Great. Thanks for the clarification. In 0.98.1 I thought we saw a
different behavior and regions were distributed when we split.
Thanks again for the help.
Abe
On Wed, Feb 18, 2015 at 12:01 PM, Ted Yu yuzhih...@gmail.com wrote:
When a region splits, the two daughter regions stay on the same
We simply use MD5 to get a hash where collision probability is very small.
There's no security implication, we don't use MD5 here to protect anything
in a cryptographic sense. In fact we could probably use a faster algorithm
with weaker collision properties for this, but MD5 is ok.
On Tue, Feb
Hi,
Are Region-level metrics here to stay?
I'm asking because I remember seeing an email or JIRA comment (from Stack?)
from a fe wmonths ago about some Region-level metrics being removed
... maybe that was just for one specific Region-level metric, but in
general Region-level metrics are
Another question, would this help when we split or only when we balance?
Thanks,
Abe
On Mon, Feb 16, 2015 at 11:24 AM, Abe Weinograd a...@flonet.com wrote:
balancer said true and it is not disabled. Thanks again for your help.
Abe
On Mon, Feb 16, 2015 at 11:23 AM, Ted Yu
It is a bit more complex than that. It is actually a hash of some subset of
the configuration properties. See HConnectionKey class if you want to learn
more. But the important thing is that with the new style, you do not need
to worry anything about these since there is no implicit connection
On Wed, Feb 18, 2015 at 1:57 PM, Otis Gospodnetic
otis.gospodne...@gmail.com wrote:
Well, here are a few related things, since you're asking :)
1. Are there table-level metrics? I didn't see any in JMX. Or is one
supposed to collect all region-level metrics and compute table-level
metrics
