Thank, I appreciate the correction to my understanding.
Sean Durity
From: Jeff Jirsa [mailto:jeff.ji...@crowdstrike.com]
Sent: Friday, January 22, 2016 1:04 PM
To: user@cassandra.apache.org
Subject: Re: Using TTL for data purge
"As I understand TTL, if there is a compaction of a cell (o
On second thought, If you are anyways reading the user table on each website
access and can afford extra IO, first option looks more appropriate as it will
ease out the pain of manual purging maintenance and wont need full table scans.
ThanksAnuj
Sent from Yahoo Mail on Android
On Sat, 23
Give a deep thought on your use case. Different user tables/types may have
different purge strategy based on how frequently a user account type is usually
accessed, whats the user count for each user type and so on.
ThanksAnuj
Sent from Yahoo Mail on Android
On Fri, 22 Jan, 2016 at 11:37 p
Hi Joseph,
I am personally in favour of Second approach because I dont want to do lot of
IO just because a user is accessing a site several times a day.
Options I see:
1.If you are on SSDs, Test LCS and update TTL of all columns at each access.
This will make sure that the system can tolerate
sean_r_dur...@homedepot.com"
Reply-To: "user@cassandra.apache.org"
Date: Friday, January 22, 2016 at 7:27 AM
To: "user@cassandra.apache.org"
Subject: RE: Using TTL for data purge
An upsert is a second insert. Cassandra’s sstables are immutable. There are no
real “overwrites” (of the
pdf>
From: Joseph TechMails [mailto:jaalex.t...@gmail.com]
Sent: Wednesday, December 30, 2015 3:59 AM
To: user@cassandra.apache.org
Subject: Re: Using TTL for data purge
Thanks, Sean. Our usecase is to delete records after few months of inactivity,
and that period is fixed, but the TTL cou
ed out.)
>
>
>
>
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> Sean Durity – Lead Cassandra Admin
>
> *From:* jaalex.tech [mailto:jaalex.t...@gmail.com]
> *Sent:* Tuesday, December 22, 2015 4:36 AM
> *To:* user@cassandra.apache.org
> *Subject:* Using TTL for data purge
>
>
>
> Hi,
>
>
>
>
in the larger and older sstables may rarely, if ever, get compacted out.)
Sean Durity – Lead Cassandra Admin
From: jaalex.tech [mailto:jaalex.t...@gmail.com]
Sent: Tuesday, December 22, 2015 4:36 AM
To: user@cassandra.apache.org
Subject: Using TTL for data purge
Hi,
I'm looking for sugges
Hi,
I'm looking for suggestions/caveats on using TTL as a subsitute for a
manual data purge job.
We have few tables that hold user information - this could be guest or
registered users, and there could be between 500K to 1M records created per
day per table. Currently, these tables have a seconda
