[ 
https://issues.apache.org/jira/browse/BEAM-13124?focusedWorklogId=700482&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-700482
 ]

ASF GitHub Bot logged work on BEAM-13124:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 23/Dec/21 10:13
            Start Date: 23/Dec/21 10:13
    Worklog Time Spent: 10m 
      Work Description: daria-malkova commented on a change in pull request 
#16277:
URL: https://github.com/apache/beam/pull/16277#discussion_r774460653



##########
File path: playground/backend/internal/environment/beam.go
##########
@@ -42,17 +42,23 @@ func NewExecutorConfig(compileCmd, runCmd, testCmd string, 
compileArgs, runArgs,
 
 // BeamEnvs contains all environments related of ApacheBeam. These will use to 
run pipelines
 type BeamEnvs struct {
-       ApacheBeamSdk  pb.Sdk
-       ExecutorConfig *ExecutorConfig
-       preparedModDir string
+       ApacheBeamSdk     pb.Sdk
+       ExecutorConfig    *ExecutorConfig
+       preparedModDir    string
+       numOfParallelJobs int
 }
 
 // NewBeamEnvs is a BeamEnvs constructor
-func NewBeamEnvs(apacheBeamSdk pb.Sdk, executorConfig *ExecutorConfig, 
preparedModDir string) *BeamEnvs {
-       return &BeamEnvs{ApacheBeamSdk: apacheBeamSdk, ExecutorConfig: 
executorConfig, preparedModDir: preparedModDir}
+func NewBeamEnvs(apacheBeamSdk pb.Sdk, executorConfig *ExecutorConfig, 
preparedModDir string, numOfParallelJobs int) *BeamEnvs {
+       return &BeamEnvs{ApacheBeamSdk: apacheBeamSdk, ExecutorConfig: 
executorConfig, preparedModDir: preparedModDir, numOfParallelJobs: 
numOfParallelJobs}
 }
 
 // PreparedModDir returns the path to the directory where prepared go.mod and 
go.sum are located
 func (b *BeamEnvs) PreparedModDir() string {
        return b.preparedModDir
 }
+
+// NumOfParallelJobs returns the max number of the possible code processing 
for the SDK on that instance at the same time

Review comment:
       // NumOfParallelJobs returns the max number of the possible code 
executions on the instance simultaneously.

##########
File path: playground/backend/internal/utils/system_utils.go
##########
@@ -16,14 +16,59 @@
 package utils
 
 import (
+       "beam.apache.org/playground/backend/internal/environment"
+       "beam.apache.org/playground/backend/internal/logger"
+       "net/http"
+       "os"
+       "path/filepath"
        "reflect"
        "runtime"
        "strings"
 )
 
+const (
+       executableFiles = "executable_files"

Review comment:
       Don't we already have this constant somewhere?

##########
File path: playground/backend/internal/utils/system_utils.go
##########
@@ -16,14 +16,59 @@
 package utils
 
 import (
+       "beam.apache.org/playground/backend/internal/environment"
+       "beam.apache.org/playground/backend/internal/logger"
+       "net/http"
+       "os"
+       "path/filepath"
        "reflect"
        "runtime"
        "strings"
 )
 
+const (
+       executableFiles = "executable_files"
+)
+
 // GetFuncName returns the name of the received func
 func GetFuncName(i interface{}) string {
        fullName := runtime.FuncForPC(reflect.ValueOf(i).Pointer()).Name()
        splitName := strings.Split(fullName, ".")
        return splitName[len(splitName)-1]
 }
+
+// GetReadinessFunction returns the function that checks the readiness of the 
server to process a new code processing request
+func GetReadinessFunction(envs *environment.Environment) func(writer 
http.ResponseWriter, request *http.Request) {
+       return func(writer http.ResponseWriter, request *http.Request) {
+               if checkNumOfTheParallelJobs(envs.ApplicationEnvs.WorkingDir(), 
envs.BeamSdkEnvs.NumOfParallelJobs()) {
+                       writer.WriteHeader(http.StatusOK)
+               } else {
+                       writer.WriteHeader(http.StatusLocked)
+               }
+       }
+}
+
+// checkNumOfTheParallelJobs checks the number of already working code 
processing.

Review comment:
       of already -> of currently 
   code processing -> code executions




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Issue Time Tracking
-------------------

    Worklog Id:     (was: 700482)
    Time Spent: 2h 50m  (was: 2h 40m)

> [Playground] Create readiness endpoint
> --------------------------------------
>
>                 Key: BEAM-13124
>                 URL: https://issues.apache.org/jira/browse/BEAM-13124
>             Project: Beam
>          Issue Type: New Feature
>          Components: beam-playground
>            Reporter: Artur Khanin
>            Assignee: Aydar Zaynutdinov
>            Priority: P3
>              Labels: beam-playground-backend, beam-playground-beta-launch, 
> beam-playground-sprint-5
>          Time Spent: 2h 50m
>  Remaining Estimate: 0h
>
> Need to add a new endpoint to check the instance's readiness. If the instance 
> is ready to receive one more code to process it this endpoint should return 
> status 200, in another case, it returns some error status (423 for example).



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