Recently we have been testing an HA Database solution from a 3rd party provider. I have done some stress tests to see some metrics for Master & Slave status etc, however I would like to test the actual failover. I need a way to test the failover or some other way to disable the Master … Read more
As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for … Read more
I am a computer scientist and I’m working as sysadmin of a small firm where I’ve been managing also the telephone system that my predecessor put in place. Albeit I don’t really have the skill set for doing this, until now it was enough. Since the last few months however we are experiencing a strange … Read more
I have several servers connected to a UPS. I would like to try and get those servers to draw the most power they are likely to as a load test of the UPS. What is the best way to cause a server or PC to draw its maximum power? One machine is running Windows Server … Read more
As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for … Read more
I’m trying to understand why my server crashes. It reboots itself after some minutes when launching stress-ng -d 9 The last logs I received are these ones: [pid 1547] write(3, “Z\26\260\2273\0Z\346\251\232\311\273e\10\263\6 \376\325(\330O\fG\326\326\330w\344\214t”…, 65536 <unfinished …> [pid 1546] write(3, “eT\323a\304\314\300^\25\360\224\224\20\342\6\201!\323\314T\nV\10A\214\25c!\256[\300K”…, 65536 <unfinished …> [pid 1545] write(3, “\3135\271\370\264\366\20\307\354\260a\236\337\223,\233u\212\327 a~\37\251\\E\365\217wR\304\200″…, 65536 <unfinished …> [pid 1544] write(3, “\357\240\353\341/\345\257\324\205\202&\342\25`\2162\306R\306\275\367\0061\206,ex(T\247S|”…, 65536 … Read more
Disclaimer: I know that what I’m about to ask is not even close to best practices but due to very specific requirements, I see this as probably one of very few solutions. Context: We wish to replicate the Production environment entirely for stress, load, functional and integration testing. We have done the necessary deployments for … Read more
We had a 3 node cluster running on HDDs. After migrating to SSDs, we ran a load test but haven’t seen any latency difference. So we are thinking about running a stress test. Is there any threshold or parameters we should set or any general recommendation to find the utmost difference? Answer Maybe you should … Read more
This question already has answers here: Closed 10 years ago. Possible Duplicate: Tools for load-testing HTTP servers? I need to load test a saas system to find capacity+bottlenecks. My preferred method is to record a few 100,000s or millions of real acess log urls and run it as test with increasing hit rate. I’ve looked … Read more
This question already has answers here: Server upload bandwidth testing (6 answers) How do you do load testing and capacity planning for web sites? (5 answers) Closed 8 years ago. I need to test a server max uploading speed, before production. What options do i have? Any services, tips, tricks are welcomed. Thanks. Answer Speedtest.net … Read more
