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This boils down to file system and procfs tuning. What you explain as 'high' load is situation where other normal processes on system are starved from reads and they forced to wait. Situation is characterized by high share of CPU wait time (check top %wa) many processes in D state (uninterruptible sleep due to waiting for reads from disk) Using noop ...


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It makes no sense to try to keep the load low at all costs. What is important is that your process steps back if something more important needs to make use of the resources offered by your system. ionice and nice / renice can be used to reduce the priority so that it only runs when the system is otherwise idle.


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hostname returns what you have configured the system to consider to be its hostname. There may be any number of A/AAAA records pointing to IP addresses associated with this system. That in itself is not abnormal. I would, however, expect an A/AAAA record for the name beginning with maximus as well, as that appears to be the canonical name in your example. ...


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The hostname of your computer is IN your computer. You can not see it outside it. In your case, 'maximus' is the hostname. The DNS is a distributed database available in DNS servers. You can ask to the DNS some informations. You can record in the DNS what you want and different from the hostname. In your case, your DNS record A is "mail" There is nothing ...


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Both postgres and mysql have different means to cluster. This is not a task to be taken trivially and requires a great deal of experience and knowledge of both in order to deploy successfully. How often do the databases update? Is is just during office hours, for example, if so, your task will be simpler. If you wish to mirror the entire system, a trivial ...


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Set worker_rlimit_nofile 65535; in nginx.conf within the main context.


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Become the user: su - nginx Check the limits: ulimit -Hn ulimit -Sn Edit the number of files the file system will let you have open: vi /etc/sysctl.conf fs.file-max = 70000 load your changes: sysctl -p See if that helps.



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