B.11 partition states – Compaq AA-Q88CE-TE User Manual
Page 273
Server Shadowing and Recovery
B.11 Partition States
B.11 Partition States
The current state of a key-range partition can be examined using the
SHOW
PARTITION/FULL
command for the routers and the backends:
RTR> show partition/router/full
Facility:
RTR$DEFAULT_FACILITY
State:
ACTIVE
Low Bound:
0
High Bound:
4294967295
Failover policy:
fail_to_standby
Backends:
depth
States:
active
Primary Main:
depth
Shadow Main:
Backend partitions:
RTR> show partition/backend/full
Partition name:
RTR$DEFAULT_PARTITION_16777217
Facility:
RTR$DEFAULT_FACILITY
State:
active
Low Bound:
"aaaa"
High Bound:
"mmmm"
Active Servers:
0
Free Servers:
1
Transaction presentation:
active
Last Rcvy BE:
Txns Active:
0
Txns Rcvrd:
0
Failover policy:
fail_to_standby
Key range ID:
16777217
Partition name:
RTR$DEFAULT_PARTITION_16777218
Facility:
RTR$DEFAULT_FACILITY
State:
active
Low Bound:
"nnnn"
High Bound:
"zzzz"
Active Servers:
0
Free Servers:
1
Transaction presentation:
active
Last Rcvy BE:
Txns Active:
0
Txns Rcvrd:
0
Failover policy:
fail_to_standby
Key range ID:
16777218
Figure B–4 describes the partition state changes which appear in the "State:"
field
Figure B–4 Router Partition States
INITIAL
BLOCKED
LAGGING
CATCHUP
ACTIVE
Primary KR
committed
− recovery in
progress
Shadow KR
committed
(no shadow)
Primary
recovery
complete
Primary
recovery
complete
recovery
complete
Shadow
Primary
fails
recovery
complete
Shadow
Primary
recovery
complete
Shadow recovery
in progress
Partition States
DD CDS 8−NOV−1991 19:27:59
Server Shadowing and Recovery B–9