forum.dlang.org is currently overloaded, or is temporarily down for maintenance, and should be back up shortly. Apologies for the inconvenience.

On Saturday, 15 December 2018 at 16:26:23 UTC, Brian wrote:
> forum.dlang.org is currently overloaded, or is temporarily down for maintenance, and should be back up shortly. Apologies for the inconvenience.

What is the reason for these outages? Today the forum was multiple times not available for minutes. I got no repsonse, 503, 451, the message mentioned by Brian, and also Proxy Errors.

Is this a hardware, a software, or a bandwidth issue?

Kind regards,
Stefan

On Sunday, 20 January 2019 at 12:43:58 UTC, kdevel wrote:
> On Saturday, 15 December 2018 at 16:26:23 UTC, Brian wrote:
>> forum.dlang.org is currently overloaded, or is temporarily down for maintenance, and should be back up shortly. Apologies for the inconvenience.
>
> What is the reason for these outages? Today the forum was multiple times not available for minutes. I got no repsonse, 503, 451, the message mentioned by Brian, and also Proxy Errors.
>
> Is this a hardware, a software, or a bandwidth issue?
>
> Kind regards,
> Stefan

For me it happened almost every day last week and today. And sometimes the page is very very slow to load (About 20 seconds).

I wouldn't mind to help financially in this case, but then D team needs to tell us how to do it.

Sasha.

On Saturday, 15 December 2018 at 16:26:23 UTC, Brian wrote:
> forum.dlang.org is currently overloaded, or is temporarily down for maintenance, and should be back up shortly. Apologies for the inconvenience.

I'm getting this message:

"Your message has been saved, and will be posted after being approved by a moderator."

On Learn topic, and this is what I was replying:

On Sunday, 20 January 2019 at 18:51:54 UTC, Steven Schveighoffer wrote:
> On 1/20/19 1:28 PM, faissaloo wrote:
>> In Python -1%3 == 2 however in D -1%3 == -1
>> Is there a standard library function or something that gives me the Python version of modulo?
>
> Hm... (n%3+3)%3 should work.
>
> -Steve

If the divisor is negative you can just add dividend after the modulus and get the same result like Python. In this way you save one % operation.

Donna.

On Saturday, 15 December 2018 at 16:26:23 UTC, Brian wrote:
> forum.dlang.org is currently overloaded, or is temporarily down for maintenance, and should be back up shortly. Apologies for the inconvenience.

I got this message almost every day. (in China)

On Saturday, 15 December 2018 at 16:26:23 UTC, Brian wrote:
> forum.dlang.org is currently overloaded, or is temporarily down for maintenance, and should be back up shortly. Apologies for the inconvenience.

Sorry about that.

I've been trying to find a more permanent solution to the performance problems plaguing the forum (and other D services hosted on the same server), and trying several things to make it work with the current hardware. Unfortunately, it's a slow-going process, and causes further performance issues while it's running.

On Monday, 21 January 2019 at 07:52:49 UTC, Vladimir Panteleev wrote:
> I've been trying to find a more permanent solution to the performance problems plaguing the forum (and other D services hosted on the same server), and trying several things to make it work with the current hardware.

As of a few days ago, the forum's database is now on a dedicated partition. (Even though it's on the same physical disk, the dedicated partition allows bypassing the sync queue from the rest of the system.)

Performance should now be much be much better, and according to my observations, it has improved.

What is your experience?

On Friday, 25 January 2019 at 12:41:35 UTC, Vladimir Panteleev wrote:
> On Monday, 21 January 2019 at 07:52:49 UTC, Vladimir Panteleev wrote:
>> I've been trying to find a more permanent solution to the performance problems plaguing the forum (and other D services hosted on the same server), and trying several things to make it work with the current hardware.
>
> As of a few days ago, the forum's database is now on a dedicated partition. (Even though it's on the same physical disk, the dedicated partition allows bypassing the sync queue from the rest of the system.)
>
> Performance should now be much be much better, and according to my observations, it has improved.
>
> What is your experience?

Definitely improved in the last few days.

On 1/25/19 7:41 AM, Vladimir Panteleev wrote:
> On Monday, 21 January 2019 at 07:52:49 UTC, Vladimir Panteleev wrote:
>> I've been trying to find a more permanent solution to the performance problems plaguing the forum (and other D services hosted on the same server), and trying several things to make it work with the current hardware.
> 
> As of a few days ago, the forum's database is now on a dedicated partition. (Even though it's on the same physical disk, the dedicated partition allows bypassing the sync queue from the rest of the system.)
> 
> Performance should now be much be much better, and according to my observations, it has improved.
> 
> What is your experience?
> 

Just this morning I clicked on a link in a post (use Thunderbird normally, so I'm not a regular user of the forum), and it was "down for maintenance" 2x, then finally came up.

-Steve

On Friday, 25 January 2019 at 15:33:37 UTC, Steven Schveighoffer wrote:
> Just this morning I clicked on a link in a post (use Thunderbird normally, so I'm not a regular user of the forum), and it was "down for maintenance" 2x, then finally came up.

Would you happen to have a more exact time?

Here are the holes in today's log (UTC):

2019-01-25 07:02:49 - 2 minutes, 30 secs - daily backup
2019-01-25 14:53:54 - 4 minutes, 42 secs - unusual lag spike
2019-01-25 15:02:36 - 1 minute, 38 secs - unusual lag spike

I still need to figure out those lag spikes (single requests / database queries that take much, much longer than they should), but knowing if it's one of those would allow me to know if the problem you saw was there or elsewhere (such as the reverse proxy).