MonitorSessionSV - Teradata Vantage

Teradata® VantageCloud Lake
Deployment
VantageCloud
Edition
Lake
Product
Teradata Vantage
Published
January 2023
Language
English (United States)
Last Update
2024-04-03
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This single operational view API can return session information across VantageCloud Lake clusters. The API can also be used to trace query sessions to a compute node.

Syntax

REPLACE FUNCTION SYSLIB.MonitorSessionSV (
  HostIdIn SMALLINT,
  UserNameIn TD_ANYTYPE,
  SessionNoIn INTEGER
 ) RETURNS TABLE (
     HostId SMALLINT,
     SessionNo INTEGER,
     LogonPENo SMALLINT,
     RunVprocNo SMALLINT,
     PartName VARCHAR(16) CHARACTER SET LATIN,
     PEstate VARCHAR(18) CHARACTER SET LATIN,
     LogonTime VARCHAR(22) CHARACTER SET LATIN,
     UserId INTEGER,
     LSN INTEGER,
     UserName VARCHAR(128) CHARACTER SET UNICODE, 
     UserAccount VARCHAR(128) CHARACTER SET UNICODE, 
     PECPUsec FLOAT,
     XActCount FLOAT,
     ReqCount FLOAT,
     ReqCacheHits FLOAT,
     AMPState VARCHAR(18) CHARACTER SET LATIN,
     AMPCPUSec FLOAT,
     AMPIO FLOAT,
     ReqSpool FLOAT, 
     Blk1HostId SMALLINT,
     Blk1SessNo INTEGER,
     Blk1UserId INTEGER,
     Blk1Lmode CHAR(1) CHARACTER SET LATIN,
     Blk1Otype CHAR(2) CHARACTER SET LATIN,
     Blk1ObjDBID INTEGER,
     Blk1ObjTID INTEGER,
     Blk1Status CHAR(1) CHARACTER SET LATIN,
     Blk2HostId SMALLINT,
     Blk2SessNo INTEGER,
     Blk2UserId INTEGER,
     Blk2Lmode CHAR(1) CHARACTER SET LATIN,
     Blk2Otype CHAR(2) CHARACTER SET LATIN,
     Blk2ObjDBID INTEGER,
     Blk2ObjTID INTEGER,
     Blk2Status CHAR(1) CHARACTER SET LATIN,
     Blk3HostId SMALLINT,
     Blk3SessNo INTEGER,
     Blk3UserId INTEGER,
     Blk3Lmode CHAR(1) CHARACTER SET LATIN,
     Blk3Otype CHAR(2) CHARACTER SET LATIN,
     Blk3ObjDBID INTEGER,
     Blk3ObjTID INTEGER,
     Blk3Status CHAR(1) CHARACTER SET LATIN,
     MoreBlockers CHAR(1) CHARACTER SET LATIN,
     LogonSource VARCHAR(128),
     HotAmp1CPU FLOAT,
     HotAmp2CPU FLOAT,
     HotAmp3CPU FLOAT,
     HotAmp1CPUId FLOAT,
     HotAmp2CPUId FLOAT,
     HotAmp3CPUId FLOAT,
     HotAmp1IO FLOAT,
     HotAmp2IO FLOAT,
     HotAmp3IO FLOAT,
     HotAmp1IOId INTEGER,
     HotAmp2IOId INTEGER,
     HotAmp3IOId INTEGER,
     LowAmp1CPU FLOAT,
     LowAmp2CPU FLOAT,
     LowAmp3CPU FLOAT,
     LowAmp1CPUId INTEGER,
     LowAmp2CPUId INTEGER,
     LowAmp3CPUId INTEGER,
     LowAmp1IO FLOAT,
     LowAmp2IO FLOAT,
     LowAmp3IO FLOAT,
     LowAmp1IOId INTEGER,
     LowAmp2IOId INTEGER,
     LowAmp3IOId INTEGER,
     AvgAmpCPUSec FLOAT,
     AvgAmpIOCnt FLOAT,
     AmpCount SMALLINT,
     TempSpaceUsg FLOAT,
     ReqStartTime VARCHAR(22) CHARACTER SET LATIN,
     ReqCPU FLOAT,
     ReqIO FLOAT,
     ReqNo INTEGER,
     WlcId INTEGER,
     DontReclassifyFlag SMALLINT,
     ProxyUser VARCHAR (128)CHARACTER SET UNICODE,
     CPUDecayLevel SMALLINT,
     IODecayLevel SMALLINT,
     TacticalCPUException INTEGER,
     TacticalIOException INTEGER,
     ReqIOKB FLOAT,
     ReqPhysIO FLOAT
     ReqPhysIOKB FLOAT
     ReqStepsCompletedCnt INTEGER,
     RedriveProtection CHAR (2) CHARACTER SET LATIN,
     CurrentRedriveParticipation CHAR (1) CHARACTER SET LATIN,
     ReqRedriveSpoolSpace FLOAT,
     BlockerSessionCnt SMALLINT,
     ReqTblOpBytesIn FLOAT,
     ReqTblOpBytesOut FLOAT,
     ProxyUserId INTEGER,
     ZoneId INTEGER,
     ReqHotAmpCPU FLOAT,
     ReqHotAmpCPUId SMALLINT,
     ReqHotAmpIO FLOAT,
     ReqHotAmpIOId SMALLINT,
     ReqInvolvedAMPCnt SMALLINT,
     ReqFirstRespTime VARCHAR(22) CHARACTER SET LATIN,
     ReqLocalQueryStatus SMALLINT,
     ReqRemoteHostId SMALLINT,
     ReqRemoteSessionId INTEGER,
     ReqRemoteRequestId INTEGER,
     ReqRemoteQueryId FLOAT)
     ReqHotAmpSpool FLOAT,           
     ReqHotAmpSpoolId SMALLINT, 
     ReqMapNo SMALLINT, 
     ReqMaxNumMapAMPs INTEGER, 
     ReqMinNumMapAMPs INTEGER, 
     ReqSysDefNumMapAMPs INTEGER,
     ReqRemoteHostIp VARCHAR(128) CHARACTER SET UNICODE,
     ReqServerName VARCHAR(128) CHARACTER SET UNICODE,
     ReqFlexReleased SMALLINT,
     ReqAdmissionTime VARCHAR(22) CHARACTER SET LATIN,

     ParentSessionNo INTEGER,
     Type VARCHAR,
     Id VARCHAR,
     Name VARCHAR,
     Group VARCHAR
   )
  ...
;

Syntax Elements

HostIdIn
Logical ID of a host (or client) with sessions logged on.
A value of -1 indicates all hosts.
UserNameIn
User name of the session.
An asterisk (*) indicates all users.
SessionNoIn
Number of the session.
A value of zero indicates all sessions.
HostId
This value is incremented by 10000 for each compute cluster for the single view. For example, the first node of the primary cluster starts at 1, the first node of the first online compute cluster starts at 10001, and the first node of the second online compute cluster starts with 20001, and so on.
SessionNo
Number of the current session. With a given host ID, a session number uniquely identifies a session on the database system. This value is assigned by the host (or client) at logon time.
LogonPENo
Vproc number of the PE the session is logged on to, which identifies the PE that has control responsibility for the session. Typically, this is the PE that processed the logon request, but if that PE goes offline, this is the PE to which the session was switched.
RunVprocNo
Vproc number of the AMP or PE assigned to process the session requests.
For sessions in Teradata SQL partitions, this value is identical to the LogonPENo. For sessions in FastLoad or MultiLoad partitions, this is the AMP that initially processes the data being loaded.
If a RunVprocNo value of -1 in record mode or NULL in indicator mode is returned by MonitorSession for FastLoad, MultiLoad, or FastExport sessions, this indicates that the session is in the process of starting up.
PartName
Name of the session partition associated with this session. Following a successful logon request by a session or as part of a connect request, the session identifies the partition with which the user wants the session to be associated. FASTLOAD, Teradata SQL, MONITOR, INTERNAL are examples of valid partition names.
PEstate
Current state of the session within the PE. For a list of the PEState values, see MONITOR SESSION.
LogonTime
Date and time portion of the information recorded by Session Control when a session logs on, typically formatted for display as yyyy/mm/dd 99:99:99.99, which represents the year, month, day, hours: minutes: seconds.
UserId
User or internal ID of a user for this session. Within the database, UserId is equivalent to Database ID. Typically, UserId is used when the associated record is known to be a user name, and Database ID is used when the associated record is known to be a database. However, UserId can identify either a given user or database name.
LSN
Logon Sequence Number (LSN) that is associated with a session when the session logs on, which identifies a collection of sessions performing a related activity. For example, in a FastLoad job, a user is logged on as a Teradata SQL session and n FastLoad sessions with the same user name. Therefore, n+1 sessions (1 Teradata SQL and n FastLoad) with the same LSN are all associated with the given FastLoad job. To see how the FastLoad job is doing, the user can pick out all sessions reported with the same LSN number.
This information supplies the parent-child relationship for sessions involved with FastLoad and MultiLoad jobs.
UserName
User name of the session.
UserAccount
Current account for the session.
PECPUsec
CPU time, in seconds, used in a PE by the associated session for parsing and dispatching requests. Accurate to the second.
This value is valid only when associated with Teradata SQL and MONITOR partition sessions.
XActCount
Number of explicit and implicit transactions run by the session.
This value is valid only when returned for Teradata SQL sessions, and is NULL for all other partition sessions. For this value, you must make a request for data before completion of the first collection period that follows either a system outage or a change in the ResMonitor rate.
ReqCount
Number of requests (Tequel Start Request (TSR) messages) initiated by the session.
This value is NULL when a request for data is made before completion of the first collection period following either a system outage or change in the ResMonitor rate.
ReqCacheHits
Number of times that this session processed a request using information from the Teradata SQL Parser request cache, specifically, number of times there was a request cache hit.
This value is valid only for Teradata SQL sessions, and is NULL for all other partition sessions. This value is also NULL when a request for data is made before completion of the first collection period following either a system outage or a change in the ResMonitor rate.
AMPState
Current state of the associated session in AMP vprocs in decreasing priority:
State Description
ABORTING Transaction being rolled back; session aborting.
BLOCKED Background activity in progress; last request on hold until background activity is completed.
ACTIVE Normal, on-going activity.
IDLE No work in progress on any AMP.
UNKNOWN No recorded activity since monitoring began.
This value is NULL when a request for data is made before completion of the first collection period following either a system outage or a change in the SesMonitorLoc or SesMonitorSys rate.
AMPCPUSec
Current elapsed CPU time, in seconds, used on all AMPs by the associated session for executing requests. For example, for Teradata SQL requests, this is the time spent by the database actively working or rolling back an aborted transaction. This does not include any PDE CPU time spent handling database requests.
This value is NULL when a request for data is made before completion of the first collection period following either a system outage or a change in the ResMonitor rate.
AMPIO
Current number of logical Reads and Writes issued across all AMPs by the associated session.
This value is NULL when a request for data is made before completion of the first collection period following either a system outage or a change in the ResMonitor rate.
ReqSpool
Current spool used by current request across all AMPs, expressed in bytes.
This value is NULL when a request for data is made before completion of the first collection period following either a system outage or a change in the ResMonitor rate.
Blk1HostId
Blk2HostId
Blk3HostId
Logical host ID of a session causing a block. This value is derived from equating the transactions causing a database lock conflict to the sessions that issued those transactions. The Blk_x_HostId, in combination with Blk_x_SessNo, uniquely identifies the session that is causing a block.
This value is NULL if:
  • The host ID is not available.
  • The session does not have an AMPState of BLOCKED.
Blk1SessNo
Blk2SessNo
Blk3SessNo
Number of the session causing a block. This value is derived from associating the transactions causing a lock conflict to the sessions that issued those transactions. The Blk_x_SessNo in combination with Blk_x_HostId uniquely identifies the session causing a block.
This value is NULL if:
  • SessNo is not available.
  • Session does not have an AMPState of BLOCKED.
  • A request for data is made before completion of the first collection period following either a system outage or a change in the SesMonitorLoc or SesMonitorSys rate.
Blk1UserId
Blk2UserId
Blk3UserId
ID of the user or host utility job preventing the session from being granted a lock. The user ID is the only information available about who placed the lock.
This value is NULL if:
  • Session does not have an AMPState of BLOCKED.
  • A request for data is made before completion of the first collection period following either a system outage or a change in the SesMonitorLoc or SesMonitorSys rate.
Blk1Lmode
Blk2Lmode
Blk3Lmode
Mode (severity) of the lock involved in causing a block:
  • E = Exclusive
  • W = Write
  • R = Read
  • A = Access
Locks are reported in decreasing order of severity because removing the most severe lock conflict may eliminate the source of the lock conflict.
This value is NULL if:
  • The session does not have an AMPState of BLOCKED.
  • A request for data is made before completion of the first collection period following either a system outage or a change in the SesMonitorLoc or SesMonitorSys rate.
A session may be blocked by either a granted lock or an ungranted lock that precedes the blocked lock in the queue and is in conflict with the lock requested by this blocked session. For information on whether the lock is granted, see fields Blk1Status, Blk2Status, and Blk3Status.
Blk1Otype
Blk2Otype
Blk3Otype
Type of object whose lock is causing the session described by the associated row to be blocked:
  • D = Database
  • T= Table
  • R = Row hash
  • TP = Table Partition range
  • RP = RowHash in Partition range
  • RK = RowHash in one partition
  • RN = RowKey range
However, this object is not necessarily the type of object the blocked session is trying to access. For example, if the session is requesting a row hash lock, the blocking object may be a database, table, or row hash.
This value is NULL if:
  • Session does not have an AMPState of BLOCKED.
  • A request for data is made before completion of the first collection period following either a system outage or a change in the SesMonitorLoc or SesMonitorSys rate.
For a Table T, User A can block User B with a table level lock on Table T on AMP_1 and with a Row Hash Level lock on that same Table T on AMP_2. When that occurs, the only lock conflict reported is that User B is blocked by User A on a table.
Blk1ObjDBID
Blk2ObjDBID
Blk3ObjDBID
Unique ID of the database object over which a lock conflict is preventing the session from being granted a lock.
Within the database system, Database ID is equivalent to User ID. Typically, User ID is used when the associated record is known to be a user name, and Database ID is used when the associated record is known to be a database. However, Database ID can identify either a user or database name.
This value is NULL if:
  • The session does not have an AMPState of BLOCKED.
  • A request for data is made before completion of the first collection period following either a system outage or a change in the SesMonitorLoc or SesMonitorSys rate.
Blk1ObjTID
Blk2ObjTID
Blk3ObjTID
Unique ID of the table object over which a lock conflict is preventing the session from being granted a lock.
This value is NULL if:
  • The session does not have an AMPState of BLOCKED.
  • The Blk_x_OType is D.
  • A request for data is made before completion of the first collection period following either a system outage or a change in the SesMonitorLoc or SesMonitorSys rate.
Blk1Status
Blk2Status
Blk3Status
Status of lock causing a block:
  • W= Waiting
  • G = Granted
This value is NULL if:
  • Session does not have an AMPState of BLOCKED.
  • A request for data is made before completion of the first collection period following either a system outage or a change in the SesMonitorLoc or SesMonitorSys rate.
A lock request may be blocked by either a granted lock or an ungranted lock that precedes the blocked lock request in the queue and is in conflict with it.
A status of Waiting has a higher priority than that of Granted when there is more than one lock involved. For example, for a given object and a given session, a session that is blocked by a Waiting lock on one AMP and a Granted lock on another AMP has Waiting reported as its status.
MoreBlockers
Indicator of more lock conflicts:
  • Blank = Blk x information is a complete list of sessions blocking the session described.
  • Asterisk (*) = Additional sessions are blocking the session described.
This value is NULL if:
  • The state of the session is not BLOCKED.
  • A request for data is made before completion of the first collection period following either a system outage or a change in the SesMonitorLoc or SesMonitorSys rate.
LogonSource
Logon source information. At logon time, this information is optionally supplied by the Teradata Director Program or the Gateway to further identify the physical or logical location of the session, the logon user name, and the interface under which the session was initiated. (For example, the data string may include DBC as the user ID and BTEQ as the interface.)
A two-byte value precedes the LogonSource data to indicate the length of the string. The length value is zero if LogonSource is NULL.
HotAmpnCPU
Where n in [1, 3]: CPU time of the nth highest CPU used AMP during the collection interval.
Where n in [1, 2]: This value is NULL if the request is made before the collection period expires.
Where n = 3: This value is NULL if the request is made before the collection period expires, and if there are only two AMPs on the system.
HotAmpnCPUId
Where n in [1, 3]: Vproc ID of the nth highest CPU used AMP for the last session collection interval.
Where n in [1, 2]: This value is NULL if the request is made before the collection period expires.
Where n = 3: This value is NULL if the request is made before the collection period expires, and if there are only two AMPs on the system.
HotAmpnIO
Where n in [1, 3]: I/O count of the nth highest I/O used AMP during the collection interval.
Where n in [1, 2]: This value is NULL if the request is made before the collection period expires.
Where n = 3: This value is NULL if the request is made before the collection period expires, and if there are only two AMPs on the system.
HotAmpnIOId
Where n in [1, 3]: Vproc ID of the nth highest I/O used AMP for the last session collection interval.
Where n in [1, 2]: This value is NULL if the request is made before the collection period expires.
Where n = 3: This value is NULL if the request is made before the collection period expires, and if there are only two AMPs on the system.
LowAmpnCPU
Where n in [1, 3]: CPU time of the nth lowest CPU used AMP during the collection interval.
Where n in [1, 2]: This value is NULL if the request is made before the collection period expires.
Where n = 3: This value is NULL if the request is made before the collection period expires, and if there are only two AMPs on the system.
LowAmpnCPUId
Where n in [1, 3]: Vproc ID of the nth lowest CPU used AMP for the last session collection interval.
Where n in [1, 2]: This value is NULL if the request is made before the collection period expires.
Where n = 3: This value is NULL if the request is made before the collection period expires, and if there are only two AMPs on the system.
LowAmpnIO
Where n in [1, 3]: I/O count of the nth lowest I/O used AMP during the collection interval.
Where n in [1, 2]: This value is NULL if the request is made before the collection period expires.
Where n = 3: This value is NULL if the request is made before the collection period expires, and if there are only two AMPs on the system.
LowAmpnIOId
Where n in [1, 3]: Vproc ID of the nth lowest I/O used AMP for the last session collection interval.
Where n in [1, 2]: This value is NULL if the request is made before the collection period expires.
Where n = 3: This value is NULL if the request is made before the collection period expires, and if there are only two AMPs on the system.
AvgAmpCPUSec
Average AMP CPU usage for the last session collection interval. The average is calculated as the sum of CPU usage for all amps participating divided by the number of online AMPs.
This value is NULL if the request is made before the collection period expires.
AvgAmpIOCnt
Average AMP I/O usage for the last session collection interval. The average is calculated as the sum of I/O usage for all AMPs participating divided by the number of online AMPs.
This value is NULL if the request is made before the collection period expires.
AmpCount
Current number of AMPs executing on the associated node.
TempSpaceUsg
Total amount, in bytes, of temporary space used by the session.
This value is NULL if the session did not materialize any temporary tables.
ReqStartTime
Date and time of the current request on the session started, typically formatted for display as yyyy/mm/dd 99:99:99.99, which represents the year, month, day hours: minutes: seconds.
ReqCPU
Total CPU usage by the current SQL request on the session on all AMPs. This value contains proper request-level statistics for DBC/SQL sessions running SQL requests only. Ignore the value returned in this field for other types of sessions, such as DBC/SQL sessions linked to a utility job.
ReqIO
Total number of accesses by the current SQL request for the session on all AMPs. This value contains proper request-level statistics for DBC/SQL sessions running SQL requests only. Ignore the value returned in this field for other types of sessions, such as DBC/SQL sessions linked to a utility job.
ReqNo
Active request number.
If no request is running, a value of zero or NULL is displayed in indicator mode.
In the early phase of a request in parsing state, when PEState = PARSING, the request number may not be available and returned as zero or NULL. The active request number is available on the next collection.
WlcId
Workload ID associated with the specified request.
DontReclassifyFlag
Flag indicating that the next request on the session is not classified, but uses the workload ID (WlcId) already assigned to the session. This occurs if this is a utility session or a WlcId was assigned to the session using the TDWMAssignWD function or the TDWM WD ASSIGNMENT request. For more information on these APIs, see TDWMAssignWD and TDWM WD ASSIGNMENT.
ProxyUser
Name of the proxy user in a trusted session.
CPUDecayLevel
Current most severe decay level as reached due to CPU usage.
Nodes can be at different levels of decay (for example, 0, 1, or 2).
IODecayLevel
Current most severe decay level as reached due to I/O usage.
Nodes can be at different levels of decay (for example, 0, 1, or 2).
TacticalCPUException
Number of nodes that encountered a CPU exception.
TacticalIOException
Number of nodes that encountered an I/O exception.
ReqIOKB
Total logical I/O usage in KB.
ReqPhysIO
Number of physical I/Os.
ReqPhysIOKB
Physical I/O usage in KB.
ReqStepsCompletedCnt
Count of completed steps for the current request. If there is no change in ReqStepsCompletedCnt from the previous Monitor Session collection, this indicates that there are no new steps completed.
RedriveProtection
Redrive protection type:
  • ' ' = No Redrive protection. This indicates that the session does not participate in Redrive and database restarts are not transparent to applications and users.
  • MN = Memory-based Redrive protection, no fallback spools
CurrentRedriveParticipation
  • T = Redrive functionality is enabled (database restarts are transparent to applications and users)
  • F = Redrive functionality is disabled (database restarts are not transparent to applications and users)
ReqRedriveSpoolSpace
Persistent spool space for the current request.
BlockerSessionCnt
Total number of blocker sessions for the session. This field returns only the first three blocker sessions in the record parcel. There are no additional blocker sessions if there are more than three blocker sessions.
ReqTblOpBytesIn
The total number of bytes transferred into the database from a foreign server for the current request through one or more table operators.
The request may involve one or multiple table operator executions. The ReqTblOpBytesIn output parameter shows bytes transferred across all invocations within the request.
ReqTblOpBytesOut
The total number of bytes transferred out of the database and into a foreign server for the current request through one or more table operators.
The request may involve one or multiple table operator executions. The ReqTblOpBytesOut output parameter shows bytes transferred across all invocations within the request.
ProxyUserId
The UserID charged for SPOOL and TEMP space if being charged to the proxy user.
ZoneId
The unique identifier of the zone.
ReqHotAmpCPU
The CPU time of the highest CPU used AMP during the life of the current request on the session.
ReqHotAmpCPUId
Vproc ID of the highest CPU used AMP for the current request.
ReqHotAmpIO
I/O count of the highest I/O used AMP during the life of the current request on the session.
ReqHotAmpIOId
Vproc ID of the highest I/O used AMP for the current request.
ReqInvolvedAMPCnt
The number of AMPs involved in processing the current request.
ReqFirstRespTime
Date and time that the first response of the current request on the session is ready. The response may be held to meet the TASM Minimum Response Time.
ReqLocalQueryStatus
The current state of the Unified Data Architecture (UDA) query.
ReqRemoteHostId
Host ID of the remote system.
ReqRemoteSessionId
Session ID of the executing remote query.
ReqRemoteRequestId
Request ID of the executing remote query.
ReqRemoteQueryId
Query ID of the executing remote query.
ReqHotAmpSpool
Spool value of the highest spool used AMP during the life of the current request on the session.
This value is NULL if no request is running on the session.
ReqHotAmpSpoolId
Vproc ID of the highest spool used AMP for the current request.
This value is NULL if no request is running on the session.
ReqMapNo
Map number for the largest map the request is using.
ReqMaxNumMapAMPs
Number of AMPs in the largest contiguous map used by the request.
ReqMinNumMapAMPs
Number of AMPs in the smallest contiguous map used by the request.
ReqSysDefNumMapAMPs
Number of AMPs in the system-default map used by the request.
ReqRemoteHostIp
Host IP address of the remote system.
ReqServerName
Name of the foreign server.
ReqFlexReleased
The TDWM Flex Throttle feature detects available system resources, overrides existing workload throttle limits, and automatically releases queries from the delay queue. This minimizes the DBA manually managing the TASM delay queue. Only Workload throttles are overridden; all System level throttles are still honored.
Return values:
  • 0: Indicates that the request was not released by TDWM Flex Throttles.
  • 1: Indicates that the request was released by TDWM Flex Throttles.
ReqAdmissionTime
Returns the date and time when a request is admitted into the system by TDWM.
ParentSessionNo
Only available in the detailed view and for compute clusters. This is an integer that links the query running from the primary cluster to the compute cluster. The Parent Session is the session from the primary cluster that correlates to this SessionNo from the compute cluster.
Type
Only available in the detailed view. Identifies the group type (compute cluster or primary cluster).
Id
Only available in the detailed view. Provides the TOS identifier the of the group (useful to identify compute clusters).
Name
Only available in the detailed view. Provides the name of the compute cluster.
Group
Only available in the detailed view. Provides the name of the compute group.