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From "Will Stevens (JIRA)" <>
Subject [jira] [Resolved] (CLOUDSTACK-9366) Disable a host also disables storage pool capacity
Date Thu, 04 Aug 2016 18:16:20 GMT


Will Stevens resolved CLOUDSTACK-9366.
       Resolution: Fixed
    Fix Version/s: 4.9.0

> Disable a host also disables storage pool capacity
> --------------------------------------------------
>                 Key: CLOUDSTACK-9366
>                 URL:
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: Management Server
>    Affects Versions: 4.8.0
>            Reporter: Sudhansu Sahu
>            Assignee: Sudhansu Sahu
>             Fix For: 4.9.0
> Disable and Remove Host operation disables the primary storage capacity.
> Steps to replicate:
> Base Condition: There exists a host and storage pool with same id
> Steps:
> 1. Find a host and storage pool having same id
> 2. Disable the host
> 3. verify that the CPU(1) and MEMORY(0) capacity in op_host_capacity for above host is
> 4. verify that the STORAGE(3) capacity in op_host_capacity for storage pool with id same
as above host is also disabled
> RCA:
> 'host_id' column in 'op_host_capacity' table used for storing both storage pool id (for
STORAGE capacity) and host id (MEMORY and CPU). While removing a HOST we also disable the
capacity associated with host.
> Ideally while disabling capacity we should only disable MEMORY and CPU capacity, but
we are not doing so.
> Code Path:
> ResourceManagerImpl.doDeleteHost() -> ResourceManagerImpl.resourceStateTransitTo()
-> CapacityDaoImpl.updateCapacityState(null, null, null, host.getId(), capacityState.toString())
> updateCapacityState is updating disabling all entries which matches the host_id. This
will also disable a entry having storage pool id same as that of host id.

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