"git.arvados.org/arvados.git/sdk/go/arvadosclient"
)
-// Function used to emit debug messages. The easiest way to enable
+// DebugPrintf emits debug messages. The easiest way to enable
// keepclient debug messages in your application is to assign
// log.Printf to DebugPrintf.
var DebugPrintf = func(string, ...interface{}) {}
}
type uploadStatus struct {
- err error
- url string
- statusCode int
- replicas_stored int
- response string
+ err error
+ url string
+ statusCode int
+ replicasStored int
+ response string
}
-func (this *KeepClient) uploadToKeepServer(host string, hash string, body io.Reader,
- upload_status chan<- uploadStatus, expectedLength int64, reqid string) {
+func (kc *KeepClient) uploadToKeepServer(host string, hash string, body io.Reader,
+ uploadStatusChan chan<- uploadStatus, expectedLength int64, reqid string) {
var req *http.Request
var err error
var url = fmt.Sprintf("%s/%s", host, hash)
if req, err = http.NewRequest("PUT", url, nil); err != nil {
DebugPrintf("DEBUG: [%s] Error creating request PUT %v error: %v", reqid, url, err.Error())
- upload_status <- uploadStatus{err, url, 0, 0, ""}
+ uploadStatusChan <- uploadStatus{err, url, 0, 0, ""}
return
}
}
req.Header.Add("X-Request-Id", reqid)
- req.Header.Add("Authorization", "OAuth2 "+this.Arvados.ApiToken)
+ req.Header.Add("Authorization", "OAuth2 "+kc.Arvados.ApiToken)
req.Header.Add("Content-Type", "application/octet-stream")
- req.Header.Add(X_Keep_Desired_Replicas, fmt.Sprint(this.Want_replicas))
- if len(this.StorageClasses) > 0 {
- req.Header.Add("X-Keep-Storage-Classes", strings.Join(this.StorageClasses, ", "))
+ req.Header.Add(XKeepDesiredReplicas, fmt.Sprint(kc.Want_replicas))
+ if len(kc.StorageClasses) > 0 {
+ req.Header.Add("X-Keep-Storage-Classes", strings.Join(kc.StorageClasses, ", "))
}
var resp *http.Response
- if resp, err = this.httpClient().Do(req); err != nil {
+ if resp, err = kc.httpClient().Do(req); err != nil {
DebugPrintf("DEBUG: [%s] Upload failed %v error: %v", reqid, url, err.Error())
- upload_status <- uploadStatus{err, url, 0, 0, err.Error()}
+ uploadStatusChan <- uploadStatus{err, url, 0, 0, err.Error()}
return
}
rep := 1
- if xr := resp.Header.Get(X_Keep_Replicas_Stored); xr != "" {
+ if xr := resp.Header.Get(XKeepReplicasStored); xr != "" {
fmt.Sscanf(xr, "%d", &rep)
}
response := strings.TrimSpace(string(respbody))
if err2 != nil && err2 != io.EOF {
DebugPrintf("DEBUG: [%s] Upload %v error: %v response: %v", reqid, url, err2.Error(), response)
- upload_status <- uploadStatus{err2, url, resp.StatusCode, rep, response}
+ uploadStatusChan <- uploadStatus{err2, url, resp.StatusCode, rep, response}
} else if resp.StatusCode == http.StatusOK {
DebugPrintf("DEBUG: [%s] Upload %v success", reqid, url)
- upload_status <- uploadStatus{nil, url, resp.StatusCode, rep, response}
+ uploadStatusChan <- uploadStatus{nil, url, resp.StatusCode, rep, response}
} else {
if resp.StatusCode >= 300 && response == "" {
response = resp.Status
}
DebugPrintf("DEBUG: [%s] Upload %v error: %v response: %v", reqid, url, resp.StatusCode, response)
- upload_status <- uploadStatus{errors.New(resp.Status), url, resp.StatusCode, rep, response}
+ uploadStatusChan <- uploadStatus{errors.New(resp.Status), url, resp.StatusCode, rep, response}
}
}
-func (this *KeepClient) putReplicas(
+func (kc *KeepClient) putReplicas(
hash string,
getReader func() io.Reader,
expectedLength int64) (locator string, replicas int, err error) {
- reqid := this.getRequestID()
+ reqid := kc.getRequestID()
// Calculate the ordering for uploading to servers
- sv := NewRootSorter(this.WritableLocalRoots(), hash).GetSortedRoots()
+ sv := NewRootSorter(kc.WritableLocalRoots(), hash).GetSortedRoots()
// The next server to try contacting
nextServer := 0
active := 0
// Used to communicate status from the upload goroutines
- upload_status := make(chan uploadStatus)
+ uploadStatusChan := make(chan uploadStatus)
defer func() {
// Wait for any abandoned uploads (e.g., we started
// two uploads and the first replied with replicas=2)
// to finish before closing the status channel.
go func() {
for active > 0 {
- <-upload_status
+ <-uploadStatusChan
}
- close(upload_status)
+ close(uploadStatusChan)
}()
}()
replicasDone := 0
- replicasTodo := this.Want_replicas
+ replicasTodo := kc.Want_replicas
- replicasPerThread := this.replicasPerService
+ replicasPerThread := kc.replicasPerService
if replicasPerThread < 1 {
// unlimited or unknown
replicasPerThread = replicasTodo
}
- retriesRemaining := 1 + this.Retries
+ retriesRemaining := 1 + kc.Retries
var retryServers []string
lastError := make(map[string]string)
for retriesRemaining > 0 {
- retriesRemaining -= 1
+ retriesRemaining--
nextServer = 0
retryServers = []string{}
for replicasTodo > 0 {
// Start some upload requests
if nextServer < len(sv) {
DebugPrintf("DEBUG: [%s] Begin upload %s to %s", reqid, hash, sv[nextServer])
- go this.uploadToKeepServer(sv[nextServer], hash, getReader(), upload_status, expectedLength, reqid)
- nextServer += 1
- active += 1
+ go kc.uploadToKeepServer(sv[nextServer], hash, getReader(), uploadStatusChan, expectedLength, reqid)
+ nextServer++
+ active++
} else {
if active == 0 && retriesRemaining == 0 {
msg := "Could not write sufficient replicas: "
// Now wait for something to happen.
if active > 0 {
- status := <-upload_status
- active -= 1
+ status := <-uploadStatusChan
+ active--
if status.statusCode == 200 {
// good news!
- replicasDone += status.replicas_stored
- replicasTodo -= status.replicas_stored
+ replicasDone += status.replicasStored
+ replicasTodo -= status.replicasStored
locator = status.response
delete(lastError, status.url)
} else {
projects / arvados.git / blobdiff