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RTR Monitoring
5.2 Standard Monitor Pictures
5.2.11 Monitor Flow
FLOW CONTROL COUNTERS 7-JAN-1999 14:08:06, NODE: -ALL- , FACILITY: -ALL-
CREDIT DATA RATE REQUESTS GRANTS
ROLE AVAILABLE BYTES/SEC WAITS SENT PENDING SENT PENDING
FE=>TR 15000 2065 307 966 0 966 0
TR=>BE 15000 2065 70 998 0 998 0
BE=>TR 0 0 0 0 0 0 0
TR=>FE 15000 0 0 2 0 2 0
LINK DATA RATE WAITS PENDING REQS SENT CACHE IN USE
NODEA =>NODEA 0 0 0 1 NODEA 0
NODEA =>NODEB 0 0 0 0 NODEB 51456
NODEB =>NODEB 2065 307 0 968
NODEB =>NODEA 2065 70 0 999
Displays the flow control internals.
5.2.12 Monitor Group
% rtr monitor group
Concurrency Measures Tue Apr 6 1999 10:04:26, NODE: NODEA
-- averages --
txn -server- -- transactions -- srv txn txn
krid state cnt cnt act vreq vote ack /csn act /sec /csn
16777216 shd_rec_fail 0 1 0 00000.00.00.0
16777217 shd_rec_fail 0 1 0 00000.00.00.0
Table 5–2 MONITOR GROUP Fields
Field Meaning
krid Key range (partition) identifier.
state Partition state.
txn cnt Number of transactions executed for this partition.
srv cnt Number of servers active for this partition.
srv act Number servers that are currently busy processing txns for this sample.
The following fields track the progress of a transaction through the states: vote requested,
voted, acknowledged.
vreq Number of transactions that are waiting for the server to vote.
vote Number of transactions that have been voted on by the server but not
committed by RTR.
ack Number of transactions that have been committed but have not been
acknowledged by the server. Acknowledgment occurs on a subsequent
rtr_receive_message( )
call by the server processing this transaction
to get a message for a new transaction.
/csn Number of transactions which have been grouped under the same ‘‘commit
sequence number’’ (CSN). This grouping determines the ordering of
transactions submitted to a secondary shadow server.
txn/sec The average rate of transaction starts per second for this partition.
txn/csn average number of transactions which have been grouped under the same
commit sequence number (CSN) since this partition became active. This
average is computed as the quotient of the
txn cnt
column and the total
number of CSN’s.
RTR Monitoring 5–9