Re: Query around Data Modelling -2

2022-07-01 Thread Bowen Song via user
From:* Bowen Song *Sent:* Friday, July 1, 2022 08:48 *To:* user@cassandra.apache.org *Subject:* Re: Query around Data Modelling -2 This message was sent from outside the company. Please do not click links or open attachments unless you recognise the sourc

Re: Query around Data Modelling -2

2022-07-01 Thread MyWorld
> > > <https://www.facebook.com/SkylineCommunications/> > > <https://www.instagram.com/skyline.dataminer/> > > > <https://skyline.be/skyline/awards?utm_source=signature_medium=email_campaign=icon> > > > > > > > > *From:* Bowen Song &g

RE: Query around Data Modelling -2

2022-06-30 Thread Michiel Saelen
; [cid:image010.png@01D88D2B.263669C0] From: Bowen Song Sent: Friday, July 1, 2022 08:48 To: user@cassandra.apache.org Subject: Re: Query around Data Modelling -2 This message was sent from outside the company. Please do not click links or open attachments unless you recognise the source of t

Re: Query around Data Modelling -2

2022-06-30 Thread Bowen Song
And why do you do that? On 30/06/2022 16:35, MyWorld wrote: We run major compaction once in a week On Thu, Jun 30, 2022, 8:14 PM Bowen Song wrote: I have noticed this "running a weekly repair and compaction job". What do you mean weekly compaction job? Have you disabled the

Re: Query around Data Modelling -2

2022-06-30 Thread MyWorld
We run major compaction once in a week On Thu, Jun 30, 2022, 8:14 PM Bowen Song wrote: > I have noticed this "running a weekly repair and compaction job". > > What do you mean weekly compaction job? Have you disabled the > auto-compaction on the table and is relying on weekly scheduled >

Re: Query around Data Modelling -2

2022-06-30 Thread Bowen Song
I have noticed this "running a weekly repair and compaction job". What do you mean weekly compaction job? Have you disabled the auto-compaction on the table and is relying on weekly scheduled compactions? Or running weekly major compactions? Neither of these sounds right. On 30/06/2022

Re: Query around Data Modelling -2

2022-06-30 Thread MyWorld
Hi Jeff, We are running repair with -pr option. You are right it would have no or very minimal impact on read (considering the fact now data has to be read from 2 levels instead of 3). But my guess there is no negative impact of this model2. On Thu, Jun 30, 2022, 7:41 PM Jeff Jirsa wrote: >

Re: Query around Data Modelling -2

2022-06-30 Thread Jeff Jirsa
How are you running repair? -pr? Or -st/-et? 4.0 gives you real incremental repair which helps. Splitting the table won’t make reads faster. It will increase the potential parallelization of compaction. > On Jun 30, 2022, at 7:04 AM, MyWorld wrote: > >  > Hi all, > > Another query around