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Posted to user@cassandra.apache.org by Jonathan Baynes <Jo...@tradeweb.com> on 2018/03/17 15:20:09 UTC
Nodetool Repair --full
Hi Community,
Can someone confirm, as the documentation out on the web is so contradictory and vague.
Nodetool repair -full if I call this, do I need to run this on ALL my nodes or is just the once sufficient?
Thanks
J
Jonathan Baynes
DBA
Tradeweb Europe Limited
Moor Place * 1 Fore Street Avenue * London EC2Y 9DT
P +44 (0)20 77760988 * F +44 (0)20 7776 3201 * M +44 (0)7884111546
Jonathan.Baynes@tradeweb.com
[cid:image001.jpg@01CD26AD.4165F110]<http://www.tradeweb.com/> follow us: [cid:image002.jpg@01CD26AD.4165F110] <https://www.linkedin.com/company/tradeweb?trk=top_nav_home> [cid:image003.jpg@01CD26AD.4165F110] <http://www.twitter.com/Tradeweb>
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Re: Nodetool Repair --full
Posted by kurt greaves <ku...@instaclustr.com>.
Worth noting that if you have racks == RF you only need to repair one rack
to repair all the data in the cluster if you *don't* use -pr. Also note
that full repairs on >=3.0 case anti-compactions and will mark things as
repaired, so once you start repairs you need to keep repairing to ensure
you don't have any zombie data or other problems.
On 17 March 2018 at 15:52, Hannu Kröger <hk...@gmail.com> wrote:
> Hi Jonathan,
>
> If you want to repair just one node (for example if it has been down for
> more than 3h), run “nodetool repair -full” on that node. This will bring
> all data on that node up to date.
>
> If you want to repair all data on the cluster, run “nodetool repair -full
> -pr” on each node. This will run full repair on all nodes but it will do it
> so only the primary range for each node is fixed. If you do it on all
> nodes, effectively the whole token range is repaired. You can run the same
> without -pr to get the same effect but it’s not efficient because then you
> are doing the repair RF times on all data instead of just repairing the
> whole data once.
>
> I hope this clarifies,
> Hannu
>
> On 17 Mar 2018, at 17:20, Jonathan Baynes <Jo...@tradeweb.com>
> wrote:
>
> Hi Community,
>
> Can someone confirm, as the documentation out on the web is so
> contradictory and vague.
>
> Nodetool repair –full if I call this, do I need to run this on ALL my
> nodes or is just the once sufficient?
>
> Thanks
> J
>
> *Jonathan Baynes*
> DBA
> Tradeweb Europe Limited
> Moor Place • 1 Fore Street Avenue
> <https://maps.google.com/?q=1+Fore+Street+Avenue+%E2%80%A2+London+EC2Y+9DT&entry=gmail&source=g>
> •
> <https://maps.google.com/?q=1+Fore+Street+Avenue+%E2%80%A2+London+EC2Y+9DT&entry=gmail&source=g>
> London EC2Y 9DT
> <https://maps.google.com/?q=1+Fore+Street+Avenue+%E2%80%A2+London+EC2Y+9DT&entry=gmail&source=g>
> P +44 (0)20 77760988 <+44%2020%207776%200988> • F +44 (0)20 7776 3201
> <+44%2020%207776%203201> • M +44 (0)7884111546 <+44%207884%20111546>
> Jonathan.Baynes@tradeweb.com
>
> <image001.jpg> <http://www.tradeweb.com/> follow us: *<image002.jpg>*
> <https://www.linkedin.com/company/tradeweb?trk=top_nav_home> <
> image003.jpg> <http://www.twitter.com/Tradeweb>
> —————————————————————————————————————————
> A leading marketplace <http://www.tradeweb.com/About-Us/Awards/> for
> electronic fixed income, derivatives and ETF trading
>
>
> ________________________________________________________________________
>
> This e-mail may contain confidential and/or privileged information. If you
> are not the intended recipient (or have received this e-mail in error)
> please notify the sender immediately and destroy it. Any unauthorized
> copying, disclosure or distribution of the material in this e-mail is
> strictly forbidden. Tradeweb reserves the right to monitor all e-mail
> communications through its networks. If you do not wish to receive
> marketing emails about our products / services, please let us know by
> contacting us, either by email at contactus@tradeweb.com or by writing to
> us at the registered office of Tradeweb in the UK, which is: Tradeweb
> Europe Limited (company number 3912826), 1 Fore Street Avenue London EC2Y
> 9DT
> <https://maps.google.com/?q=1+Fore+Street+Avenue+London+EC2Y+9DT&entry=gmail&source=g>.
> To see our privacy policy, visit our website @ www.tradeweb.com.
>
>
>
Re: Nodetool Repair --full
Posted by Hannu Kröger <hk...@gmail.com>.
Hi Jonathan,
If you want to repair just one node (for example if it has been down for more than 3h), run “nodetool repair -full” on that node. This will bring all data on that node up to date.
If you want to repair all data on the cluster, run “nodetool repair -full -pr” on each node. This will run full repair on all nodes but it will do it so only the primary range for each node is fixed. If you do it on all nodes, effectively the whole token range is repaired. You can run the same without -pr to get the same effect but it’s not efficient because then you are doing the repair RF times on all data instead of just repairing the whole data once.
I hope this clarifies,
Hannu
> On 17 Mar 2018, at 17:20, Jonathan Baynes <Jo...@tradeweb.com> wrote:
>
> Hi Community,
>
> Can someone confirm, as the documentation out on the web is so contradictory and vague.
>
> Nodetool repair –full if I call this, do I need to run this on ALL my nodes or is just the once sufficient?
>
> Thanks
> J
>
> Jonathan Baynes
> DBA
> Tradeweb Europe Limited
> Moor Place • 1 Fore Street Avenue • London EC2Y 9DT
> P +44 (0)20 77760988 • F +44 (0)20 7776 3201 • M +44 (0)7884111546
> Jonathan.Baynes@tradeweb.com <ma...@tradeweb.com>
>
> <image001.jpg> <http://www.tradeweb.com/> follow us: <image002.jpg> <https://www.linkedin.com/company/tradeweb?trk=top_nav_home> <image003.jpg> <http://www.twitter.com/Tradeweb>
> —————————————————————————————————————————
> A leading marketplace <http://www.tradeweb.com/About-Us/Awards/> for electronic fixed income, derivatives and ETF trading
>
> ________________________________________________________________________
>
> This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy it. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden. Tradeweb reserves the right to monitor all e-mail communications through its networks. If you do not wish to receive marketing emails about our products / services, please let us know by contacting us, either by email at contactus@tradeweb.com <ma...@tradeweb.com> or by writing to us at the registered office of Tradeweb in the UK, which is: Tradeweb Europe Limited (company number 3912826), 1 Fore Street Avenue London EC2Y 9DT. To see our privacy policy, visit our website @ www.tradeweb.com <http://www.tradeweb.com/>.
>