Server load today has been within tolerance, and email has not been backed up for more than about a couple of minutes at any point.
We’ll post an update later today on the acquisition of new hardware.
Server load today has been within tolerance, and email has not been backed up for more than about a couple of minutes at any point.
We’ll post an update later today on the acquisition of new hardware.
A contributory cause of the performance issues on server NC018 is one of the anti-spam systems on that server. Unfortunately, we have had to deactivate part of the anti-spam system, and we’re already seeing the results in the form of spam that would normally be blocked reaching mail boxes. We apologise for this temporary issue. On the plus side, the anti-spam systems on the new server will be an improvement over the one on the old server.
As we informed you on 6 March, we had intended to increase the memory (RAM) on server NC018 on 9 March. (Server NC018 hosts the majority of websites, and all email except specialised email services.) This maintenance would have solved performance issues that were happening with more regularity. However, the maintenance failed due to hardware compatibility issues.
When the maintenance failed, we immediately began preparing to acquire new hardware to replace this server. During the week of 11-15 March we obtained a number of proposals and advice on a plan we had begun developing some months ago.
However, on 18 March the mail server was overwhelmed. The most obvious result of this was that email delivery was delayed during peak periods by as many as several hours. While it was not clear exactly why the mail server was overwhelmed, there was an obvious way to deal with the problem. We implemented this, and the mail queue was cleared in a short amount of time. We believed that this approach should have worked to prevent the mail server from being overwhelmed if the mail server again experienced heavy volume, but it did not when the same thing happened on 19 March.
We are therefore urgently preparing to set up new hardware. I don’t have an exact time line for you at the moment, but it is our goal to have the hardware in place and online by the weekend, and we will endeavour to transfer everything as quickly as we can over the weekend.
We will update you on major events by email, but please check our status page once or twice a day at status.niner.net or status.ninernet.net for progress reports.
We apologise for the inconvenience that this transition is causing, and ask for your patience as we go through this upgrade.
The mail queue on server NC018 has been cleared, and anti-spam services have been reinstated. We apologise for the inconvenience, and are working on this server to bring these problems to an end.
We have temporarily disabled some of the ant-spam services on the server to allow the mail queue to be processed as quickly as possible.
The mail queue on server NC018 — the mail server for all clients who host their email with us — is very large at the moment, and message delivery is being delayed. We’re working on this, and will post updates here.
The entire email backlog was processed by about 17:00 UTC, and the server is back to normal.
Again, we apologise for the inconvenience. Please contact support if you have any questions or concerns about this incident. Thank-you again for your patience.
The primary mail server is working its way through the mail queue, and the queue is being reduced at this time. This is an improvement over what was happening earlier.
We will keep posting updates until this situation is resolved. Thank-you for your patience, and we apologise for the inconvenience.
We are working with the data centre to block a distributed denial of service attack (DDoS) and clear the mail queue.
The mail queue on server NC018 (the primary mail server) is currently significantly backed up. We’re looking into the cause of the problem and will post updates here.
Systems at a Glance:
Loc. | System | Status | Ping |
---|---|---|---|
![]() | NC023 | Internal | Up? |
![]() | NC028 | Internal | Up? |
![]() | NC031 | Internal | Up? |
![]() | NC033 | Operational | Up? |
![]() | NC034 | Internal | Up? |
![]() | NC035 | Operational | Up? |
![]() | NC036 | Operational | Up? |
![]() | NC040 | Internal | Up? |
![]() | NC041 | Operational | Up? |
![]() | NC042 | Operational | Up? |
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