subset of C* nodes and not by all of them, as per connection
consistency/table replication settings, in case.
2) Is it possible to forbid ALLOW FILTERING flag for given users/groups?
Thank you all very much in advance,
Vsevolod Filaretov.
tens of Cassandra nodes perform insertion/extraction of
new/failed nodes? What's the usual routine in case you have 20+ nodes, and
need to decommission 4 nodes and insert 4 new ones instead?
Links to blog posts or mail threads much appreciated!
Thank you all in advance,
Vsevolod Filaretov.
9GLlbWiKzHm1vucZTtVYWDDvyLkh8IaQ&m=YH5vXIEwCC-CMZNOyNJCAHTeso6N1JZHkgoolKHKQjE&s=KjhchSZTtYYl60nfet6WB1fQd-Ph2P-YOD-GQzUJj2o&e=>
> gets into 4.0 release
>
>
>
> But right now, there seems to be few interest in this ticket, the last
> comment 23/Feb/2017 old ...
under read
requests load.
Changing primary partition key structure is out of question.
Are there any sharding techniques available to dilute partitions at level
lower than 'select' requests to make read performance better? Without
changing read requests syntax?
Thank you all in advance
onestly, I'm a bit out of ideas where to look. Where the problem might be?
Even "lame"/"easy" hypotheses are welcome, because my vision actually might
be blurred with the search.
Thank you all very much in advance.
Best regards,
Vsevolod Filaretov.
, to the up and running one (dynamically
switch to other coordinator node from the dead one)?
If the answer is no, what could be my alternatives?
Thank you all in advance,
Vsevolod Filaretov.
not need regular reboots for Cassandra’s sake, but you should be
> regularly patching your servers
>
>
> --
> Jeff Jirsa
>
>
> > On Jul 17, 2018, at 2:09 AM, Vsevolod Filaretov
> wrote:
> >
> > Good time of day everyone;
> >
> > Does Cassandra h
o keep in
> memory in terms of key / row cache. For my uses, no less than 64GB if not
> more ~ 128GB. The lowest I’ve gone is 16GB but that’s for dev purposes
> only.
>
> --
> Rahul Singh
> rahul.si...@anant.us
> https://www.anant.us/datastax
>
> Anant Corporation
>
What are general community and/or your personal experience viewpoints on
cassandra node RAM amount vs data stored per node question?
Thank you very much.
Best regards,
Vsevolod.
at months/years without
> rebooting.
> It is better to monitor your nodes and if you find anything abnormal a
> restart can help.
>
> --
> SIMON FONTANA OSCARSSON
> Software Developer
>
> Ericsson
> Ölandsgatan 1
> 37133 Karlskrona, Sweden
> simon.fontana.oscars..
Good time of day everyone;
Does Cassandra have a "recommended uptime"? I.e., does regular Cassandra
node reboots help anything? Are periodical node reboots recommended for
general system stability?
Best regards, Vsevolod.
What are general community guidelines on setting up C* heap size,
file_cache_size_in_mb, offheap space usage and other RAM usage settings?
Are there any general guidelines like "if your total data size per node is
X/median/max partition size is Y, your RAM usage settings better be Z or
things will
Kurt, thank you very much for your answer! Your remark on GC totally
changed my thoughts on cassandra resources usage.
So.. more questions to the respective audience underway.
What is generally considered as
1) "too large" page size,
2)"large" page size
3) "normal conditions" page size?
How exa
Good time of day everyone,
I've got a question on timeouts setting practice.
I've got a 4-node cluster with only a handful of users, constant data
inserts and very large partitions (up to 450+mb, which is 4 times larger
than general cassandra manuals recommend). Data is held on hdd.
What are gen
Good time of day everyone,
I've got three questions on Cassandra paging mechanics and cluster usage
regulation.
1) Am I correct to assume that the larger page size some user session has
set - the larger portion of cluster/coordinator node resources will be
hogged by the corresponding session?
2)
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