Re: compaction trigger after every fix interval

2024-04-28 Thread Bowen Song via user
There's many things that can trigger a compaction, knowing the type of 
compaction can help narrow it down.


Have you looked at the nodetool compactionstats command output when it 
is happening? What is the compaction type? It can be "compaction", but 
can also be something else, such as "validation" or "cleanup".



On 28/04/2024 10:49, Prerna Jain wrote:

Hi team,

I have a query, in our prod environment, there are multiple key spaces 
and tables. According to requirements, every table has different 
compaction strategies like level/time/size.
Somehow, when I checked the compaction history, I noticed that 
compaction occurs every 6 hr for every table.
We did not trigger any job manual and neither did I find any 
configuration. Also, write traffic is also not happening at fix 
interval on that tables

Can you please help me find out the root cause of this case?

I appreciate any help you can provide.

Regards
Prerna Jain

compaction trigger after every fix interval

2024-04-28 Thread Prerna Jain
Hi team,

I have a query, in our prod environment, there are multiple key spaces and
tables. According to requirements, every table has different compaction
strategies like level/time/size.
Somehow, when I checked the compaction history, I noticed that compaction
occurs every 6 hr for every table.
We did not trigger any job manual and neither did I find any configuration.
Also, write traffic is also not happening at fix interval on that tables
Can you please help me find out the root cause of this case?

I appreciate any help you can provide.

Regards
Prerna Jain


Re: compaction trigger after every fix interval

2024-04-28 Thread manish khandelwal
Hi Prerna

Compactions are triggered automatically based on the compaction strategy.
Since you are seeing compactions triggered every 6 hours, the  thing that
can be  happening  is you have such a kind of traffic where you have lots
of writes every 6 hours.

PS: Please use the user mailing list (user@cassandra.apache.org) for
posting such queries.

Regards
Manish

On Sun, Apr 28, 2024 at 2:26 PM Prerna Jain  wrote:

> Hi team,
>
> I have a query, in our prod environment, there are multiple key spaces and
> tables. According to requirements, every table has different compaction
> strategies like level/time/size.
> Somehow, when I checked the compaction history, I noticed that compaction
> occurs every 6 hr for every table.
> We did not trigger any job manual and neither did I find any configuration.
> Can you please help me find out the root cause of this case.
>
> I appreciate any help you can provide.
>
> Regards
> Prerna Jain
>