On Fri, Oct 3, 2014 at 6:03 PM, Arthur Zubarev
wrote:
> I now see I had misspelled the word tall for toll, anyways, if I
> understood correctly, your reply implies there is no impact whatsoever and
> there is no need to defrug indexes of the frequently changing columns.
>
"Cases with lots of sec
Original Message
From: Robert Coli
To: user
Sent: Mon, Sep 29, 2014 8:01 pm
Subject: Re: Indexes Fragmentation
On Sun, Sep 28, 2014 at 9:49 AM, Arthur Zubarev wrote:
There are 200+ times more updates and 50x inserts than analytical loads.
In Cassandra to just be able to query (in CQL
a-top
From: Robert Coli
To: "user@cassandra.apache.org"
Sent: Monday, September 29, 2014 5:01 PM
Subject: Re: Indexes Fragmentation
On Sun, Sep 28, 2014 at 9:49 AM, Arthur Zubarev wrote:
There are 200+ times more updates and 50x inserts than analytical loads.
>
>In Cassand
On Sun, Sep 28, 2014 at 9:49 AM, Arthur Zubarev
wrote:
>
> There are 200+ times more updates and 50x inserts than analytical loads.
> In Cassandra to just be able to query (in CQL) on a column I have to have
> an index, the question is what tall the fragmentation coming from the
> frequent updates
To: user
Sent: Sun, Sep 28, 2014 11:41 am
Subject: Re: Indexes Fragmentation
It’s always a tradeoff between the level of sophistication of the platform and
how much work you want to do in the application itself.
But, yes, secondary indexing is always added overhead, and added complexity
.
I doubt there is room for bugs, this is a "by design" application behaviour.
Regards,
Arthur
Original Message
From: Hannu Kröger
To: user
Sent: Sun, Sep 28, 2014 11:30 am
Subject: Re: Indexes Fragmentation
Hi,
I think more information is needed before this quest
Subject: Re: Indexes Fragmentation
Thank you Jack,
But I am afraid it may be an overhead. Added complexity.
/Arthur
Original Message
From: Jack Krupansky
To: user
Sent: Sun, Sep 28, 2014 11:03 am
Subject: Re: Indexes Fragmentation
Take a look at DataStax Enterprise as well
Hi,
I think more information is needed before this question can be answered. In
many cases you manage the indexes by yourself. If that breaks, then you
have a consistency problem or a bug in your own code. Consistency is
tunable (trade off with performance and availability) and bugs can be
fixed.
Thank you Jack,
But I am afraid it may be an overhead. Added complexity.
/Arthur
Original Message
From: Jack Krupansky
To: user
Sent: Sun, Sep 28, 2014 11:03 am
Subject: Re: Indexes Fragmentation
Take a look at DataStax Enterprise as well, with its integrated Solr indexing
Take a look at DataStax Enterprise as well, with its integrated Solr indexing
of Cassandra data.
-- Jack Krupansky
From: Arthur Zubarev
Sent: Sunday, September 28, 2014 10:55 AM
To: user@cassandra.apache.org
Subject: Indexes Fragmentation
Hi all:
A client on a RDBMS faces quick index fragmen
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