private void acquireLock(string vehicleCode)
{
var lockDoc = new VehicleLock(vehicleCode);
var lockAcquired = false;
var attempts = 0;
while (!lockAcquired && attempts < this.NumberOfRetries)
{
try
{
this.vehicleLocksCollection.InsertOne(lockDoc);
lockAcquired = true;
}
catch
{
attempts++;
if (attempts < this.NumberOfRetries)
{
log.Warn($"Cannot acquire lock for vehicle { vehicleCode }. Attempt #{ attempts } of { this.NumberOfRetries }.");
}
else
{
log.Error($"Cannot acquire lock for vehicle { vehicleCode }. Giving up on insertion after { this.NumberOfRetries } attempts.");
throw;
}
Thread.Sleep(this.RetriesInterval_msec);
}
}
}
private void acquireLock(string vehicleCode)
{
var lockDoc = new VehicleLock(vehicleCode);
var lockAcquired = false;
var attempts = 0;
while (!lockAcquired && attempts < this.NumberOfRetries)
{
try
{
this.vehicleLocksCollection.InsertOne(lockDoc);
lockAcquired = true;
}
catch
{
attempts++;
// compute some jitter in order to prevent thread synchronization
int retryInterval = computeRetryIntervalWithJitter(this.RetriesInterval_msec);
if (attempts < this.NumberOfRetries)
{
log.Info($"Cannot acquire lock for vehicle { vehicleCode }. Attempt #{ attempts } of { this.NumberOfRetries }. Waiting for { retryInterval } before retry.");
}
else
{
log.Error($"Cannot acquire lock for vehicle { vehicleCode }. Giving up on insertion after { this.NumberOfRetries } attempts.");
throw;
}
Thread.Sleep(retryInterval);
}
}
}
