@cassandra.apache.org
Subject: Re: [External] Re: Understanding when Cassandra drops expired time
series data
Got it. Thanks again! But in versions of Cassandra after 2.0.15
getFullyExpiredSSTables is more in line with what people would consider to be
fully expired (i.e. any SSTable whose newest value
: Friday, June 17, 2016 4:21:02 PM
To: user@cassandra.apache.org
Subject: Re: [External] Re: Understanding when Cassandra drops expired time
series data
Correcting myself - https://issues.apache.org/jira/browse/CASSANDRA-9882 made
it check for fully expired tables no more than once every 10 minutes
: Friday, June 17, 2016 at 1:05 PM
To: "user@cassandra.apache.org"
Subject: [External] Re: Understanding when Cassandra drops expired time series
data
Anytime the memtable is flushed to disk, the compaction strategy will look for
tables to compact. If there exists fully expired sstab
.
From: jerome
Reply-To: "user@cassandra.apache.org"
Date: Friday, June 17, 2016 at 1:02 PM
To: "user@cassandra.apache.org"
Subject: Re: Understanding when Cassandra drops expired time series data
Hi Jeff,
Thanks for the information! That helps clear up a
.apache.org"
Subject: Re: Understanding when Cassandra drops expired time series data
Hey Jeff,
Do most of those behaviors apply to TWCS too?
-J
On Fri, Jun 17, 2016 at 1:25 PM, Jeff Jirsa wrote:
First, DTCS in 2.0.15 has some weird behaviors -
https://issues.apache.
016 3:25:07 PM
To: user@cassandra.apache.org
Subject: Re: Understanding when Cassandra drops expired time series data
First, DTCS in 2.0.15 has some weird behaviors -
https://issues.apache.org/jira/browse/CASSANDRA-9572 .
That said, some other general notes:
Data deleted by TTL isn’t the sa
rome
> *Reply-To: *"user@cassandra.apache.org"
> *Date: *Friday, June 17, 2016 at 11:52 AM
> *To: *"user@cassandra.apache.org"
> *Subject: *Understanding when Cassandra drops expired time series data
>
>
>
> Hello! Recently I have been trying to familia
mmit-2015-real-world-dtcs-for-operators
) - if you’re running time series in production on DTCS, it’s worth a glance.
From: jerome
Reply-To: "user@cassandra.apache.org"
Date: Friday, June 17, 2016 at 11:52 AM
To: "user@cassandra.apache.org"
Subject: Understanding
Hello! Recently I have been trying to familiarize myself with Cassandra but
don't quite understand when data is removed from disk after it has been
deleted. The use case I'm particularly interested is expiring time series data
with DTCS. As an example, I created the following table:
CREATE TABL
