CODEWITHSUNDEEP
cachingservercluster-computingignite
Joe
Joe

Reputation: 13101

Apache Ignite - move data from one server to another

I have Ignite instance started as a 'server mode' on computer A, created cache in it and stored 1M Key->Values inside the cache.

Then I started Ignite instance as a 'server mode' on computer B which joined Ignite instance on computer A and now have a cluster of 2 nodes.

Is it possible to move all 1M K->V from computer A to computer B (without any interruption for querying data or ingesting data) so that computer A can be shut down for maintenance and everything continue to work from computer B?

If this is possible - what are the steps and code to do that (move data from A -> B)?

Upvotes: 1

Views: 608

Answers (2)

Pavel Tupitsyn
Pavel Tupitsyn

Reputation: 8986

Ignite distributes data across server nodes according to Cache Modes.

In REPLICATED mode each server holds a copy of all data, so you can shut down any node and data won't be lost.

In PARTITIONED mode you can set CacheConfiguration.backups to 1 (or more) so that data is evenly distributed across server nodes, but each server also holds a copy of data from some other server. In this scenario you can shut down any single node and data won't be lost.

Upvotes: 2

CrazyRen
CrazyRen

Reputation: 93

There are the features named "backup" and "CacheRebalanceMode" of IgniteCache.I think you can try these.

Upvotes: 1

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