Data loading during startup

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Data loading during startup

Hi community,

I know that during the startup process of ignite node, cached data will
not be loaded, that is, there is no warm up process.

However, we can see from the top command that during the startup of
ignite, the memory usage has been increasing, which will increase by
more than 10g, what data has been loaded in the start process?

akorensh akorensh
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Re: Data loading during startup

Hi,
  If you've enabled persistence then some data will be loaded.
  Use metrics to see what/how much was loaded:

see:  https://apacheignite.readme.io/docs/distributed-persistent-store
https://apacheignite.readme.io/docs/durable-memory#persistence-features
https://apacheignite.readme.io/docs/memory-metrics#data-region-metrics
example:
https://github.com/apache/ignite/tree/master/examples/src/main/java/org/apache/ignite/examples/persistentstore

  If there is a complex config/many nodes then a lot of messages will be
exchanged which leads to memory usage:

Thanks, Alex



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