Insight is an add on to JIRA so you need to make sure JIRA is configured to handle the amount of data you plan to manage into Insight. We recommend you to read this article from Atlassian about how to setup JIRA and recommended hardware requirements: 

https://confluence.atlassian.com/jira/jira-requirements-185729596.html#JIRARequirements-JIRAServerHardwareRecommendations

When managing large amount of data we recommend this amount of memory to be configured:

オブジェクトJVM Memory
~ 10.0004 GB
~ 100.0008 GB
~ 500.00016 GB
~ 1.000.00032 GB
~ 2.000.00064 GB
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