VSS writers
1readings
1conditions
1themes fed
Livestatus
VSS writer state, the canonical evidence behind a failed backup.
Topic id: vss_writers.
Conditions
A condition is a state that holds for a while. The agent opens it when the host enters it, keeps it open while it lasts, and closes it when the host comes back out, so one episode answers for the whole stretch instead of one alert per sample.
| Condition | Severity | How an episode ends |
|---|---|---|
VSS writer failed (vss_writer_failed) | Notice to Error | It closes when any one of the several recovery conditions is met. |
Example
Inventory (every 6 hours)
4 writers.
sparklogs.data.vss_writers.writer: sqlserverwriter
sparklogs.data.vss_writers.writer_state: stable
sparklogs.data.vss_writers.writer_state_failed: false
sparklogs.data.vss_writers.writer_class_code: 4
SparkLogs: CONTEXT, Info, vss_writers: INVENTORY: 4 writers.
Selected conditions
vss_writer_failed
A VSS writer is failed or unstable.
Impact: Backups depending on that writer may fail, exclude data, or fall back to crash-consistent behavior.
Example
started; "system writer" writer failed
sparklogs.instance: writer:system writer
sparklogs.data.vss_writers.writer: system writer
sparklogs.data.vss_writers.writer_state_failed: true
sparklogs.data.vss_writers.writer_class_code: 2
sparklogs.data.vss_writers.vss_writer_failed_age_h: 0.0
SparkLogs: vss_writer_failed, Notice, vss_writers: vss_writer_failed: NOTABLE: started; "system writer" writer failed
| Case | Severity | Ticket class |
|---|---|---|
onset | Trace to Fatal | backup |
held | Trace to Fatal | backup |
recovered | Trace to Fatal | backup |