Indexes in Phoenix should not in theory cause any cluster outage. An index
write failure should just disable the index, not cause a crash.
In practice, there have been some bugs around race conditions, the most
dangerous of which accidentally trigger a KillServerOnFailurePolicy which
then
By no means am I judging Phoenix based on this. This is simply a design
trade-off (scylladb goes the same route and builds global indexes). I
appreciate all the effort that has gone in to Phoenix, and it was indeed a
life saver. But the technical point remains that single node failures have
Thanks Josh for the response!
I would definitely like to use protobuf serialization, but I'm observing
performance issues trying to run queries with a large number of results.
One problem is that I observe PQS runs out of memory, when its trying to
(what looks like to me) serialize the results in
I would strongly disagree with the assertion that this is some
unavoidable problem. Yes, an inverted index is a data structure which,
by design, creates a hotspot (phrased another way, this is "data locality").
Lots of extremely smart individuals have spent a significant amount of
time and
I would strongly suggest you do not use the JSON serialization.
The JSON support is implemented via Jackson which has no means to make
backwards compatibility "easy". On the contrast, protobuf makes this
extremely easy and we have multiple examples over the past years where
we've been able to
I think this is an unavoidable problem in some sense, if global indexes are
used. Essentially global indexes create a graph of dependent region
servers due to index rpc calls from one RS to another. Any single failure
is bound to affect the entire graph, which under reasonable load becomes
the
Another observation with Phoenix global indexes - at very large volumes of
writes, a single region server failure cascades to the entire cluster very
quickly
On Sat, Oct 27, 2018, 4:50 AM Nicolas Paris
wrote:
> Hi
>
> I am benchmarking phoenix to better understand its strength and
> weaknesses.
