52 lines
1.2 KiB
YAML
52 lines
1.2 KiB
YAML
# Latest secondary's lastWriteDate is used normally with read preference tags.
|
|
---
|
|
heartbeatFrequencyMS: 25000 # 25 seconds.
|
|
topology_description:
|
|
type: ReplicaSetNoPrimary
|
|
servers:
|
|
- &1
|
|
address: a:27017
|
|
type: RSSecondary
|
|
avg_rtt_ms: 5
|
|
lastUpdateTime: 0
|
|
maxWireVersion: 6
|
|
lastWrite: {lastWriteDate: {$numberLong: "125002"}}
|
|
tags:
|
|
data_center: tokyo # No match, but its lastWriteDate is used in estimate.
|
|
- &2
|
|
address: b:27017
|
|
type: RSSecondary
|
|
avg_rtt_ms: 5
|
|
lastUpdateTime: 0
|
|
maxWireVersion: 6
|
|
lastWrite: {lastWriteDate: {$numberLong: "2"}} # 125 sec stale + 25 sec heartbeat <= 150 sec maxStaleness.
|
|
tags:
|
|
data_center: nyc
|
|
- &3
|
|
address: c:27017
|
|
type: RSSecondary
|
|
avg_rtt_ms: 5
|
|
lastUpdateTime: 0
|
|
maxWireVersion: 6
|
|
lastWrite: {lastWriteDate: {$numberLong: "1"}} # Too stale.
|
|
tags:
|
|
data_center: nyc
|
|
- &4
|
|
address: d:27017
|
|
type: RSSecondary
|
|
avg_rtt_ms: 5
|
|
lastUpdateTime: 0
|
|
maxWireVersion: 6
|
|
lastWrite: {lastWriteDate: {$numberLong: "2"}}
|
|
tags:
|
|
data_center: tokyo # No match.
|
|
read_preference:
|
|
mode: Secondary
|
|
maxStalenessSeconds: 150
|
|
tag_sets:
|
|
- data_center: nyc
|
|
suitable_servers:
|
|
- *2
|
|
in_latency_window:
|
|
- *2
|