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Add Support for Cache and S3 related metrics in Prometheus endpoint (#8591)

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This PR adds support below metrics

- Cache Hit Count
- Cache Miss Count
- Data served from Cache (in Bytes)
- Bytes received from AWS S3
- Bytes sent to AWS S3
- Number of requests sent to AWS S3

Fixes #8549
This commit is contained in:
Nitish Tiwari
2019-12-06 12:46:06 +05:30
committed by Harshavardhana
parent d2dc964cb5
commit 3df7285c3c
32 changed files with 400 additions and 86 deletions
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cmd/xl-v1-object.go
+5 -5
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@@ -129,7 +129,7 @@ func (xl xlObjects) GetObjectNInfo(ctx context.Context, bucket, object string, r
// Handler directory request by returning a reader that
// returns no bytes.
if hasSuffix(object, SlashSeparator) {
if HasSuffix(object, SlashSeparator) {
var objInfo ObjectInfo
if objInfo, err = xl.getObjectInfoDir(ctx, bucket, object); err != nil {
return nil, toObjectErr(err, bucket, object)
@@ -190,7 +190,7 @@ func (xl xlObjects) getObject(ctx context.Context, bucket, object string, startO
}
// If its a directory request, we return an empty body.
if hasSuffix(object, SlashSeparator) {
if HasSuffix(object, SlashSeparator) {
_, err := writer.Write([]byte(""))
logger.LogIf(ctx, err)
return toObjectErr(err, bucket, object)
@@ -344,7 +344,7 @@ func (xl xlObjects) GetObjectInfo(ctx context.Context, bucket, object string, op
return oi, err
}
if hasSuffix(object, SlashSeparator) {
if HasSuffix(object, SlashSeparator) {
info, err := xl.getObjectInfoDir(ctx, bucket, object)
if err != nil {
return oi, toObjectErr(err, bucket, object)
@@ -804,7 +804,7 @@ func (xl xlObjects) deleteObjects(ctx context.Context, bucket string, objects []
}
for i, object := range objects {
isObjectDirs[i] = hasSuffix(object, SlashSeparator)
isObjectDirs[i] = HasSuffix(object, SlashSeparator)
}
for i, object := range objects {
@@ -903,7 +903,7 @@ func (xl xlObjects) DeleteObject(ctx context.Context, bucket, object string) (er
}
var writeQuorum int
var isObjectDir = hasSuffix(object, SlashSeparator)
var isObjectDir = HasSuffix(object, SlashSeparator)
if isObjectDir {
_, err = xl.getObjectInfoDir(ctx, bucket, object)