Troubleshooting |
Aspera has worked hard to create a transfer cluster that works well out of the box. The default configuration of the system is designed to maximize the price-to-performance ratio. However, if you require transfer speeds significantly faster than 1 Gbps, or if you are transferring hundreds of thousands of files then some tuning can improve cluster performance.
Your ATC cluster nodes can be optimized for maximum performance by changing certain configuration settings and selecting an instance type that supports your desired bandwidth usage.
Disable activity logging
Cluster nodes report bandwidth usage in real time by default. Disable this reporting by locating the following line in the transfer configuration and changing the value from true to false:
<activity_bandwidth_logging>true</activity_bandwidth_logging>
Disable pre-calculate job
Cluster nodes attempt to estimate how long a transfer will take based on the size of the transfer and real-time available bandwidth. This is a parallel process to transfers that can decrease transfer performance in some scenarios. Disable pre-calculating transfer time by locating the following line in the transfer configuration and changing the value from yes to no:
<pre_calculate_job_size>yes</pre_calculate_job_size>
Decrease the activity retention period by locating the following line in the transfer configuration and changing the value from six hours to no less than one hour (1h):
<activity_retention>6h</activity_retention>