New in version 0.9.
Heartbeat monitoring per host.
Generates a JSON structure that can be used to create a custom heartbeat dashboard. The output consists of a row per host which includes the host’s last_heartbeat, last_alert and status.
This plugin also sends an alert when the heartbeat_timeout is exceeded and supports alert throttling to reduce noise.
Config:
Sets the maximum duration (in seconds) between heartbeats before an alert is sent.
Sets the minimum duration (in seconds) between alert event outputs.
Example Heka Configuration
[heartbeat]
type = "SandboxFilter"
filename = "lua_filters/heartbeat.lua"
ticker_interval = 30
preserve_data = true
message_matcher = "Type == 'heartbeat'"
[heartbeat.config]
heartbeat_timeout = 30
alert_throttle = 300
[alert-encoder]
type = "SandboxEncoder"
filename = "lua_encoders/alert.lua"
[email-alert]
type = "SmtpOutput"
message_matcher = "Type == 'heka.sandbox-output' && Fields[payload_type] == 'alert'"
send_from = "acme-alert@example.com"
send_to = ["admin@example.com"]
auth = "Plain"
user = "smtp-user"
password = "smtp-pass"
host = "mail.example.com:25"
encoder = "alert"
Example Output
{"ip-10-0-0-11":{"last_heartbeat":1415311858257,"status":"up","last_alert":1415310603648},"ip-10-0-0-187":{"last_heartbeat":1415311856214,"status":"down","last_alert":1415310603648}
Timestamp: | 2014-05-14T14:20:18Z |
---|---|
Hostname: | ip-10-226-204-51 |
Plugin: | heartbeat |
Alert: | Missing Heartbeat - ip-10-0-0-187 |