Thanks a lot. I will try this. On Tue, 24 May 2022, 23:50 Николай Ижиков, <nizhi...@apache.org> wrote:
> > Does it ensure consistency while copying data which is parallely getting > updated by application writes > > Yes. > > From the documentation: > > «An Ignite snapshot includes a consistent cluster-wide copy of all data > records persisted on disk and some other files needed for a restore > procedure.» > > > will this be a stop the world process > > No. > > > 24 мая 2022 г., в 21:17, Surinder Mehra <redni...@gmail.com> написал(а): > > Hi > Thanks for reply. > > #1: So it's not a stop the world task. Does it ensure consistency while > copying data which is parallely getting updated by application writes. Or > does it mark the data to copied and ignore further updates on it. > > #2: > I will try sync snapshot. But just to confirm, will this be a stop the > world process. Couldn't find anything on Documentation page about it > > On Tue, 24 May 2022, 23:12 Николай Ижиков, <nizhi...@apache.org> wrote: > >> Hello, Mehra. >> >> > 1. Is it stop the world process. >> >> No, you can perform any actions. >> Note, topology changes will cancel snapshot create process. >> >> > 2. If so, is it stop the world only during command execution >> (500millis) or until snapshot Dara is fully copied(takes many minutes) to >> complete. >> >> Please, take a look at `—sync` option of create snapshot command (you can >> see help in `control.sh` output). >> `EVT_CLUSTER_SNAPSHOT_FINISHED` raise on snapshot create finish. >> >> > 3. Is there a way around to speed up this other than increasing >> snapshot threads >> >> Stop write operations. >> The less you change the quicker snapshot will be created. >> >> 24 мая 2022 г., в 20:12, Surinder Mehra <redni...@gmail.com> написал(а): >> >> Hi, >> I have 3 node ignite cluster each node contains 60G work directory(ebs) >> and I need to create snapshots. >> I followed steps to create snapshots and run create snapshot command >> using control utility. Command completed in 500millis but snapshot >> directory only had 400Mb data. Later I realised directory size grew up 30G. >> I suppose it would reach size of work directory. >> >> >> I have few questions. >> 1. Is it stop the world process. >> 2. If so, is it stop the world only during command execution (500millis) >> or until snapshot Dara is fully copied(takes many minutes) to complete. >> 3. Is there a way around to speed up this other than increasing snapshot >> threads >> >> >> >
