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Add ServerDrivesPerfInfo() admin API (#6969)

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This is part of implementation for mc admin health command. The
ServerDrivesPerfInfo() admin API returns read and write speed
information for all the drives (local and remote) in a given Minio
server deployment.

Part of minio/mc#2606
This commit is contained in:
Nitish Tiwari
2018-12-31 23:16:44 +05:30
committed by kannappanr
parent 75cd4201b0
commit fcb56d864c
11 changed files with 396 additions and 2 deletions
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pkg/madmin/API.md
+18 -1
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@@ -39,7 +39,7 @@ func main() {
| Service operations | Info operations | Healing operations | Config operations | IAM operations | Misc |
|:----------------------------|:----------------------------|:--------------------------------------|:--------------------------|:------------------------------------|:------------------------------------|
| [`ServiceStatus`](#ServiceStatus) | [`ServerInfo`](#ServerInfo) | [`Heal`](#Heal) | [`GetConfig`](#GetConfig) | [`AddUser`](#AddUser) | [`SetAdminCredentials`](#SetAdminCredentials) |
| [`ServiceSendAction`](#ServiceSendAction) | | | [`SetConfig`](#SetConfig) | [`SetUserPolicy`](#SetUserPolicy) | [`StartProfiling`](#StartProfiling) |
| [`ServiceSendAction`](#ServiceSendAction) | [`ServerDrivesPerfInfo`](#ServerDrivesPerfInfo) | [`SetConfig`](#SetConfig) | [`SetUserPolicy`](#SetUserPolicy) | [`StartProfiling`](#StartProfiling) |
| | | | [`GetConfigKeys`](#GetConfigKeys) | [`ListUsers`](#ListUsers) | [`DownloadProfilingData`](#DownloadProfilingData) |
| | | | [`SetConfigKeys`](#SetConfigKeys) | [`AddCannedPolicy`](#AddCannedPolicy) | |
@@ -204,6 +204,23 @@ Fetches information for all cluster nodes, such as server properties, storage in
```
<a name="ServerDrivesPerfInfo"></a>
### ServerDrivesPerfInfo() ([]ServerDrivesPerfInfo, error)
Fetches drive performance information for all cluster nodes. Returned value is in Bytes/s.
| Param | Type | Description |
|---|---|---|
|`di.Addr` | _string_ | Address of the server the following information is retrieved from. |
|`di.Error` | _string _ | Errors (if any) encountered while reaching this node |
|`di.DrivesPerf` | _disk.Performance_ | Path of the drive mount on above server and read, write speed. |
| Param | Type | Description |
|---|---|---|
|`disk.Performance.Path` | _string_ | Path of drive mount. |
|`disk.Performance.Error` | _string_ | Error (if any) encountered while accessing this drive. |
|`disk.Performance.WriteSpeed` | _float64_ | Write speed on above path in Bytes/s. |
|`disk.Performance.ReadSpeed` | _float64_ | Read speed on above path in Bytes/s. |
## 6. Heal operations