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https://issues.apache.org/jira/browse/CLOUDSTACK-2160?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13640062#comment-13640062
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Hongtu Zang commented on CLOUDSTACK-2160:
-----------------------------------------
It is cause by listNetwork
In NetUtils.java getAllIpsFromCidr() will return all Ips in this cidr, it will
get too much ips.
I fixed it and the review request: https://reviews.apache.org/r/10750/
> add a huge size guest network will cause out of memory
> ------------------------------------------------------
>
> Key: CLOUDSTACK-2160
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-2160
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: Network Controller
> Affects Versions: 4.0.2
> Environment: management server installed in centos 6.3
> Reporter: Hongtu Zang
> Labels: guestnetwork, network, outofmemory
> Fix For: 4.0.2
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> navigate to network, select view "Guest Networks"
> Add guest network
> add a guest network with netmaks 255.0.0.0
> UI will hung for a while and returns error.
> In log it will shows "java.lang.OutOfMemoryError: Java heap space"
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