$MC_COMMAND ;
  STATUS=$? ;
  until [ $STATUS = 0 ]
  do
    ATTEMPTS=`expr $ATTEMPTS + 1` ;
    echo \"Failed attempts: $ATTEMPTS\" ;
    if [ $ATTEMPTS -gt $LIMIT ]; then
      exit 1 ;
    fi ;
    sleep 2 ; # 2 second intervals between attempts
    $MC_COMMAND ;
    STATUS=$? ;
  done ;
  set -e ; # reset `e` as active
  return 0
}

# checkSvcacctExists ()

  $MC_COMMAND ;
  STATUS=$? ;
  until [ $STATUS = 0 ]
  do
    ATTEMPTS=`expr $ATTEMPTS + 1` ;
    echo \"Failed attempts: $ATTEMPTS\" ;
    if [ $ATTEMPTS -gt $LIMIT ]; then
      exit 1 ;
    fi ;
    sleep 2 ; # 1 second intervals between attempts
    $MC_COMMAND ;
    STATUS=$? ;
  done ;
  set -e ; # reset `e` as active
  return 0
}

# runCommand ($@)

				// attempt
				toDel = toDel[:0]
				for i, err := range errs {
					if err != nil {
						stopFn(toDelCopy[i], err)
						batchLogIf(ctx, fmt.Errorf("Failed to expire %s/%s versionID=%s due to %v (attempts=%d)", ri.Bucket, toDelCopy[i].ObjectName, toDelCopy[i].VersionID, err, attempts))
						failed++
						if attempts == retryAttempts { // all retry attempts failed, record failure

	$MC_COMMAND
	STATUS=$?
	until [ $STATUS = 0 ]; do
		ATTEMPTS=$(expr $ATTEMPTS + 1)
		echo \"Failed attempts: $ATTEMPTS\"
		if [ $ATTEMPTS -gt $LIMIT ]; then
			exit 1
		fi
		sleep 2 # 1 second intervals between attempts
		$MC_COMMAND
		STATUS=$?
	done
	set -e # reset `e` as active
	return 0
}

# checkBucketExists ($bucket)

                          {
                            "name": "envoy.retry_host_predicates.previous_hosts"
                          }
                        ],
                        "host_selection_retry_max_attempts": "5",
                        "retriable_status_codes": [
                          503
                        ]
                      },
                      "max_grpc_timeout": "0s"
                    },

  $MC_COMMAND ;
  STATUS=$? ;
  until [ $STATUS = 0 ]
  do
    ATTEMPTS=`expr $ATTEMPTS + 1` ;
    echo \"Failed attempts: $ATTEMPTS\" ;
    if [ $ATTEMPTS -gt $LIMIT ]; then
      exit 1 ;
    fi ;
    sleep 2 ; # 1 second intervals between attempts
    $MC_COMMAND ;
    STATUS=$? ;
  done ;
  set -e ; # reset `e` as active
  return 0
}

# checkUserExists ()

  $MC_COMMAND ;
  STATUS=$? ;
  until [ $STATUS = 0 ]
  do
    ATTEMPTS=`expr $ATTEMPTS + 1` ;
    echo \"Failed attempts: $ATTEMPTS\" ;
    if [ $ATTEMPTS -gt $LIMIT ]; then
      exit 1 ;
    fi ;
    sleep 2 ; # 1 second intervals between attempts
    $MC_COMMAND ;
    STATUS=$? ;
  done ;
  set -e ; # reset `e` as active
  return 0
}

 *
 *  3. Attempt plans from prior connect attempts for this call. These occur as either follow-ups to
 *     failed connect attempts (such as trying the next [ConnectionSpec]), or as attempts that lost
 *     a race in fast follow-up.
 *
 *  4. If there's no existing connection, make a list of routes (which may require blocking DNS

		nproc = 7
	}
	if setNproc {
		var rlim syscall.Rlimit
		if syscall.Getrlimit(nproc, &rlim) == nil {
			max := int(rlim.Cur) / (threads + 5)
			if attempts > max {
				t.Logf("lowering attempts from %d to %d for RLIMIT_NPROC", attempts, max)
				attempts = max
			}
		}
	}

	if os.Getenv("test18146") == "exec" {
		runtime.GOMAXPROCS(1)
		for n := threads; n > 0; n-- {
			go func() {
				for {

	}

	wk, err := workers.New(workerSize)
	if err != nil {
		// invalid worker size.
		return err
	}

	retryAttempts := ri.RetryAttempts
	retry := false
	for attempts := 1; attempts <= retryAttempts; attempts++ {
		attempts := attempts
		// one of source/target is s3, skip delete marker and all versions under the same object name.