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Questions tagged [realtime]

42 questions
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votes
0 answers

Hardware Clock (RTC) Stuck / Will Not Increment

After we rebooted one of our servers (RHEL), we noticed that it would hang when entering GRUB. The problem was the countdown in GRUB (Booting in 5... 4......) was not counting down, and was stuck at 5. At the same time, we noticed that when…
Tanaki
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2
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1 answer

RHEL - tcp_delack_min sysctl parameter missing on realtime kernels

I'm looking to modify the tcp_delack_min sysctl tunable on several RHEL/CentOS systems. It should be located at /proc/sys/net/ipv4/tcp_delack_min. I'm finding that it is missing in recent kernels. While the parameter is available on 2.6.24.7-161, I…
ewwhite
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5 answers

Realtime File Replication with Windows Server

I am researching alternative solutions for real-time-file-replication on windows Server OS. Now we use XO Soft WAN Sync for file-replication but in the next time we want to expand our Server-location and so we search for a alternative System for…
kockiren
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2
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3 answers

Monitor log files in realtime, like "top" monitors processes [OS X]

Is there a command/program for OS X that allows me to hook to a file and display its changes in realtime without re-opening it, much like "top" monitors system processes in realtime?
Mark
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2
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1 answer

Show bytes transfered on an active connection

Is it possible to show bytes transfered over time in real-time on an active connection on the command line? I can do netstat and get the bytes at that time, but wonder if it can be adapted to show total number of bytes transfered.
madphp
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2
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2 answers

linux tool for real time file replication between servers

I have a web application. It is database and file driven (database is postgresql, users upload and create files)... I would like to balance the load between two+ servers, and that means not only database replication (which I can achieve with tools…
arod
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1 answer

Logstash's ElasticSearch Input Plugin should be used to output to ElasticSearch

We hope to use ElasticSearch Input Plugin from Logstash to output with ElasticSearch. This feature has been successfully collected by MongoDB Input Plugin in real time. However, the ElasticSearch Input Plugin does not start with the data that you…
junsung kang
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4 answers

real-time mirroring of files (from Linux to Windows (or maybe cygwin))

How do I make it so that whenever the file blah.pdf on computer A is changed, its copy at computer B is updated? I believe I must setup some daemons on A and B. A is a Linux system and B is a Windows system. Motivation: I'm editing and compiling TeX…
RamyenHead
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Resume by RTC to guarantee software updates

I am maintaining around 100 user workstations with various software and operating systems. I use a WSUS Server for Windows updates and I have a set of custom scripts for other software. WSUS will push updates at 3am, and the scripts run an hour…
tcshain
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vote
1 answer

synchronous the databases at real time

I have two databases, one in the domain and managed by phpMyAdmin, and the other is located on the local server. I want make the local one as master and the other reside in the domain as slave. With phpMyAdmin, can I synchronous the databases at…
slaki
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vote
1 answer

Reliable Multicast Programming (PGM) on Windows

I want to use the Reliable Multicast Programming (PGM) protocol on Windows. http://msdn.microsoft.com/en-us/library/windows/desktop/ms740125%28v=vs.85%29.aspx I know Windows support it. However, it seems that I need network devices (routers and…
Coder
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4 answers

Free alternative to NI Real-Time Hypervisor?

Is there an free alternative to National Instruments' NI Real-Time Hypervisor? National Instruments provides both a Windows and Linux versions.
Roberto
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1 answer

IIS7 real-time NCSA logging

IIS 7 and 7.5 can do NCSA format log files very easilly simply by changing the logging format. However, it doesn't write them in real time which is useless if you're trying to do real-time analysis of the log files. IIS can do real-time log files…
Mark Henderson
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Allowing untrusted clients read-only replication of public data in a redis instance?

I've got a database of publicly auditable votes, updated in real time in a redis instance. Nothing else is in that redis instance. It has been separated from related data in a second redis instance. Although I can expose it to the internet with…
James Bowery
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1 answer

Can a linux process be configured to run ANY time it is ready?

I have a process that does a small amount of work, then goes to sleep for 1-5ms. When that sleep time is up, I want that process to get the CPU IMMEDIATELY! Whatever process is already on the CPU needs to be ejected instantly to make way for the new…
user37244
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