cacheHostInfo is null

While starting  Distributed Cache service, I got this ugly message "cacheHostInfo is null"
After googling, I found different solutions but the better one was posted by rakasatria as follows:




$SPFarm = Get-SPFarm

$cacheClusterName = "SPDistributedCacheCluster_" + $SPFarm.Id.ToString()

$cacheClusterManager = [Microsoft.SharePoint.DistributedCaching.Utilities.SPDistributedCacheClusterInfoManager]::Local

$cacheClusterInfo = $cacheClusterManager.GetSPDistributedCacheClusterInfo($cacheClusterName);

$instanceName ="SPDistributedCacheService Name=AppFabricCachingService"

$serviceInstance = Get-SPServiceInstance | ? {($_.Service.Tostring()) -eq $instanceName -and ($_.Server.Name) -eq $env:computername}

if([System.String]::IsNullOrEmpty($cacheClusterInfo.CacheHostsInfoCollection))

{

    #here's the key. we can't provision, unprovision, start, or stop a Cache Service because we still have a Cache Service that have no server attached 

    $serviceInstance.Delete()

    Add-SPDistributedCacheServiceInstance

    $cacheClusterInfo.CacheHostsInfoCollection

}




But it's not working for me.




Then I traverse the script to found the issue. For this I have done following:




$SPFarm = Get-SPFarm

$cacheClusterName = "SPDistributedCacheCluster_" + $SPFarm.Id.ToString()

$cacheClusterManager = [Microsoft.SharePoint.DistributedCaching.Utilities.SPDistributedCacheClusterInfoManager]::Local

$cacheClusterInfo = $cacheClusterManager.GetSPDistributedCacheClusterInfo($cacheClusterName);

$instanceName ="SPDistributedCacheService Name=AppFabricCachingService"

$serviceInstance = Get-SPServiceInstance | ? {($_.Service.Tostring()) -eq $instanceName -and ($_.Server.Name) -eq $env:computername}

 Write-Host $cacheClusterInfo -ForegroundColor DarkCyan

if([System.String]::IsNullOrEmpty($cacheClusterInfo.CacheHostsInfoCollection))

if{

    #here's the key. we can't provision, unprovision, start, or stop a Cache Service because we still have a Cache Service that have no server attached 

    $serviceInstance.Delete()

    Add-SPDistributedCacheServiceInstance

    $cacheClusterInfo.CacheHostsInfoCollection

}

Here $cacheClusterInfo giving me value. and the above code will only run when this variable will be empty.

So I removed if condition and left rest as it is.

$SPFarm = Get-SPFarm

$cacheClusterName = "SPDistributedCacheCluster_" + $SPFarm.Id.ToString()

$cacheClusterManager = [Microsoft.SharePoint.DistributedCaching.Utilities.SPDistributedCacheClusterInfoManager]::Local

$cacheClusterInfo = $cacheClusterManager.GetSPDistributedCacheClusterInfo($cacheClusterName);

$instanceName ="SPDistributedCacheService Name=AppFabricCachingService"

$serviceInstance = Get-SPServiceInstance | ? {($_.Service.Tostring()) -eq $instanceName -and ($_.Server.Name) -eq $env:computername}

 Write-Host $cacheClusterInfo -ForegroundColor DarkCyan


    $serviceInstance.Delete()

    Add-SPDistributedCacheServiceInstance

    $cacheClusterInfo.CacheHostsInfoCollection

And now it worked!!!!