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Add desc of "Storage Write Stall" row in the TiFlash grafana #6524

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merged 5 commits into from
Sep 29, 2021
Merged

Add desc of "Storage Write Stall" row in the TiFlash grafana #6524

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ec17181
Add desc of "Storage Write Stall" row in the TiFlash grafana
JaySon-Huang Sep 23, 2021
db2abe5
Fix some wording
JaySon-Huang Sep 23, 2021
101a7db
Align with the Chinese version
JaySon-Huang Sep 24, 2021
3b6c14a
Apply suggestions from code review
TomShawn Sep 26, 2021
e9b0200
Update monitor-tiflash.md
TomShawn Sep 26, 2021
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14 changes: 14 additions & 0 deletions tiflash/monitor-tiflash.md
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Expand Up @@ -73,6 +73,20 @@ The following sections introduce the default monitoring information of **TiFlash
>
> These metrics only cover the monitoring information of the TiFlash storage layer and do not cover that in TiFlash-Proxy.

## Storage Write Stall

- Write & Delta Management Throughput: The throughput of write and data compaction for all instances.
- `throughput_write` means the throughput of data synchronization through Raft.
- `throughput_delta-management` means the throughput of data compaction.
- `total_write` means the total bytes written since the last start.
- `total_delta-management` means the total bytes of data compacted since the last start.
- Write Stall Duration: The stall duration of write and removing Region data (deleting ranges) by instance.
- Write Throughput By Instance: The throughput of write by instance. It includes the throughput by applying the Raft write commands and Raft snapshots.
- Write Command OPS By Instance: The total count of different kinds of commands received by instance.
- `write block` means the data logs synchronized through Raft.
- `delete_range` means that some Regions are removed from or moved to this instance.
- `ingest` means some Region snapshots are applied to this instance.

## Raft

- Read Index OPS: The number of times that each TiFlash instance triggers the `read_index` request per second, which equals to the number of Regions triggered.
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