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Documentation/upgrades: highlight db metrics change

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Signed-off-by: Gyuho Lee <gyuhox@gmail.com>
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Gyuho Lee
2018-06-07 10:33:02 -07:00
parent 009d05ae4f
commit a8d7d5ad72
2 changed files with 24 additions and 0 deletions
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13
Documentation/upgrades/upgrade_3_4.md
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@@ -47,6 +47,19 @@ OK
+etcd --peer-trusted-ca-file ca-peer.crt
```
#### Promote `etcd_debugging_mvcc_db_total_size_in_bytes` Prometheus metrics
v3.4 promotes `etcd_debugging_mvcc_db_total_size_in_bytes` Prometheus metrics to `etcd_mvcc_db_total_size_in_bytes`, in order to encourage etcd storage monitoring.
`etcd_debugging_mvcc_db_total_size_in_bytes` is still served in v3.4 for backward compatibilities. It will be completely deprecated in v3.5.
```diff
-etcd_debugging_mvcc_db_total_size_in_bytes
+etcd_mvcc_db_total_size_in_bytes
```
Note that `etcd_debugging_*` namespace metrics have been marked as experimental. As we improve monitoring guide, we will promote more metrics.
#### Deprecating `etcd --log-output` flag (now `--log-outputs`)
Rename [`etcd --log-output` to `--log-outputs`](https://github.com/coreos/etcd/pull/9624) to support multiple log outputs. **`etcd --logger=capnslog` does not support multiple log outputs.**

11
Documentation/upgrades/upgrade_3_5.md
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@@ -14,6 +14,17 @@ Before [starting an upgrade](#upgrade-procedure), read through the rest of this
Highlighted breaking changes in 3.5.
#### Deprecate `etcd_debugging_mvcc_db_total_size_in_bytes` Prometheus metrics
v3.4 promoted `etcd_debugging_mvcc_db_total_size_in_bytes` Prometheus metrics to `etcd_mvcc_db_total_size_in_bytes`, in order to encourage etcd storage monitoring. And v3.5 completely deprcates `etcd_debugging_mvcc_db_total_size_in_bytes`.
```diff
-etcd_debugging_mvcc_db_total_size_in_bytes
+etcd_mvcc_db_total_size_in_bytes
```
Note that `etcd_debugging_*` namespace metrics have been marked as experimental. As we improve monitoring guide, we will promote more metrics.
#### Deprecated in `etcd --logger capnslog`
v3.4 defaults to `--logger=zap` in order to support multiple log outputs and structured logging.