Ssis job hangs

Question

i am using ssis 2012 jobs hang randomly,
today, when i ran the profiler, i found the below, please please guide on how to prevent hangs
exec sp_executesql N'
        --Preparing to access the Catalog object
        DECLARE @t_catalogs TABLE (
        Name sysname COLLATE SQL_Latin1_General_CP1_CI_AS,
        EncryptionAlgorithm nvarchar(256) COLLATE SQL_Latin1_General_CP1_CI_AS,
        SchemaVersion int,
        SchemaBuild nvarchar(256) COLLATE SQL_Latin1_General_CP1_CI_AS,
        OperationLogRetentionTime int,
        MaxProjectVersions int,
        OperationCleanupEnabled bit,
        VersionCleanupEnabled bit,
        ServerLoggingLevel int,
        OperationLogNumberOfRecords int,
        VersionLogNumberOfRecords int)
        IF DB_ID(''SSISDB'') IS NOT NULL
        BEGIN
        INSERT INTO @t_catalogs VALUES(
        ''SSISDB'',
        (SELECT [property_value] FROM [SSISDB].[catalog].[catalog_properties] WHERE [property_name]  = N''ENCRYPTION_ALGORITHM''),
        (SELECT CAST([property_value] AS INT) FROM [SSISDB].[catalog].[catalog_properties] WHERE [property_name]  = N''SCHEMA_VERSION''),
        (SELECT [property_value] FROM [SSISDB].[catalog].[catalog_properties] WHERE [property_name]  = N''SCHEMA_BUILD''),
        (SELECT CAST([property_value] AS INT) FROM [SSISDB].[catalog].[catalog_properties] WHERE [property_name]  = N''RETENTION_WINDOW''),
        (SELECT CAST([property_value] AS INT) FROM [SSISDB].[catalog].[catalog_properties] WHERE [property_name]  = N''MAX_PROJECT_VERSIONS''),
        (SELECT CAST([property_value] AS BIT) FROM [SSISDB].[catalog].[catalog_properties] WHERE [property_name]  = N''OPERATION_CLEANUP_ENABLED''),
        (SELECT CAST([property_value] AS BIT) FROM [SSISDB].[catalog].[catalog_properties] WHERE [property_name]  = N''VERSION_CLEANUP_ENABLED''),
        (SELECT CAST([property_value] AS INT) FROM [SSISDB].[catalog].[catalog_properties] WHERE [property_name]  = N''SERVER_LOGGING_LEVEL''),
        (SELECT COUNT(operation_id) FROM [SSISDB].[catalog].[operations]),
        (SELECT COUNT(object_id) FROM [SSISDB].[catalog].[object_versions])
        END
SELECT
''IntegrationServices[@Name='' + quotename(CAST(SERVERPROPERTY(N''Servername'') AS sysname),'''''''') + '']'' + ''/Catalog[@Name='' + '''''''' + REPLACE((SELECT Name from @t_catalogs), '''''''', '''''''''''') + '''''''' + '']'' +
''/CatalogFolder[@Name='' + '''''''' + REPLACE(folders.[name], '''''''', '''''''''''') + '''''''' + '']'' + ''/ProjectInfo[@Name='' + '''''''' + REPLACE(projects.[name], '''''''', '''''''''''') + '''''''' + '']'' + ''/EnvironmentReference[@Name=''
+ quotename(refs.[environment_name],'''''''') + '' and @EnvironmentFolderName='' + quotename(ISNULL(refs.[environment_folder_name], ''.''),'''''''') + '']'' AS [Urn],
refs.[reference_id] AS [ReferenceId],
refs.[project_id] AS [ProjectId],
refs.[reference_type] AS [ReferenceType],
ISNULL(refs.[environment_folder_name], ''.'') AS [EnvironmentFolderName],
refs.[environment_name] AS [Name],
refs.[validation_status] AS [ValidationStatus],
CAST (refs.[last_validation_time] AS datetime) AS [LastValidationTime]
FROM
[SSISDB].[catalog].[folders] AS folders
INNER JOIN [SSISDB].[catalog].[projects] AS projects ON projects.[folder_id]=folders.[folder_id]
INNER JOIN [SSISDB].[catalog].[environment_references] AS refs ON refs.[project_id]=projects.[project_id]
WHERE
(projects.[name]=@_msparam_0)and((folders.[name]=@_msparam_1)and(((SELECT Name from @t_catalogs)=@_msparam_2)and((CAST(SERVERPROPERTY(N''Servername'') AS sysname)=@_msparam_3))))',N'@_msparam_0 nvarchar(4000),@_msparam_1 nvarchar(4000),@_msparam_2 nvarchar(4000),@_msparam_3
nvarchar(4000)',@_msparam_0=N'Staging,@_msparam_1=N'Staging',@_msparam_2=N'SSISDB',@_msparam_3=servername

Answer 1

this is useless
Nobody would be able to repro using what you provided.
But I suspect some locking / blocking does occurs.
Suggestion: apply any missing service packs, and I typically hear this being reported on a box literally brought to its knees by the amount of tasks vs. resources available. Put Perf Counters to use and you will most likely find out that the machine is starved
on CPU and RAM thus the intermittent job hangs.
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