limits

问题 Is there any limit for number of participants in a room of group type in Twilio Video API? In the documentation is specified a limit for peer-to-peer type but said nothing about group type rooms. UPDATE: Twilio mentioned limit for 50 participants per room in the article in their blog. It looks like a very small number. Is it still the same? https://www.twilio.com/blog/2017/05/announcing-programmable-video-group-rooms.html 回答1: Twilio developer evangelist here. The maximum number of

问题 OK I know questions like this have been asked in various forms before and I have read them all and tried everything that has been suggested but I still cannot create a file that is more than 2GB on a 64bit system using malloc, open, lseek, blah blah every trick under the sun. Clearly I'm writing c here. I'm running Fedora 20, I'm actually trying to mmap the file but that is not where it fails, my original method was to use open(), then lseek to the position where the file should end which in

问题 I want to check if an user inputted number is bigger or lower than the told values. I know about atoll function but it doesn't seem to be specially helpful, basing the check on a undefined value doesn't look too convincing. I also know that I could check if the string the user has inputted is all digits, in this case I could check for things as if the length of the string is bigger than the length of LLONG_MAX or LLONG_MIN once 0s on the left are removed, or in the case the length of both is

问题 Say you have this really complex algorithm that requires dozens of for loops. Does JavaScript have a limit to how deep loops can be nested or is there no limit? What is the best practice for deep nested for loops? I tried searching on MDN but couldn't find what I was looking for Edit I'm looking if there is a built in limit. For example if you had something like this If ( a = 1, a < 3, a++) { if (b = 1; b < 3; b++) { ... if (cd = 1; cd < 3; cd++) Would this actually be possible or would JS

问题 We use SourceSafe 6.0d and have a DB that is about 1.6GB. We haven't had any problems yet, and there is no plan to change source control programs right now, but how big can the SourceSafe database be before it becomes an issue? Thanks 回答1: Do you run the built-in ssarchive utility to make backups? If so, 2GB is the maximum size that can be restored. (http://social.msdn.microsoft.com/Forums/en-US/vssourcecontrol/thread/6e01e116-06fe-4621-abd9-ceb8e349f884/) NOTE: the ssarchive program won't

问题 We need to raise RLIMIT_NOFILE when running memcached, as we're hitting the default hard limit (1024). However, raising a hard limit requires root, and for various reasons we don't want to have to run memcached or its containing shell as root. Right now we happily run it as a non-root user. Is there a way to raise the hard limit for RLIMIT_NOFILE system-wide, so that we can continue to run memcached as non-root and simply raise the soft limit? This is RedHat Linux with 2.6 kernel. Thanks! Jon

问题 We need to raise RLIMIT_NOFILE when running memcached, as we're hitting the default hard limit (1024). However, raising a hard limit requires root, and for various reasons we don't want to have to run memcached or its containing shell as root. Right now we happily run it as a non-root user. Is there a way to raise the hard limit for RLIMIT_NOFILE system-wide, so that we can continue to run memcached as non-root and simply raise the soft limit? This is RedHat Linux with 2.6 kernel. Thanks! Jon

问题 I have this code #include <iostream> using namespace std; int main(int argc,char **argv) { unsigned long long num1 =

问题 What happen when SQL Server 2005 happen to reach the maximum for an IDENTITY column? Does it start from the beginning and start refilling the gap? What is the behavior of SQL Server 2005 when it happen? 回答1: You will get an overflow error when the maximum value is reached . If you use the bigint datatype with a maximum value of 9,223,372,036,854,775,807 this will most likely never be the case. The error message you will get, will look like this: Msg 220, Level 16, State 2, Line 10 Arithmetic

问题 What happen when SQL Server 2005 happen to reach the maximum for an IDENTITY column? Does it start from the beginning and start refilling the gap? What is the behavior of SQL Server 2005 when it happen? 回答1: You will get an overflow error when the maximum value is reached . If you use the bigint datatype with a maximum value of 9,223,372,036,854,775,807 this will most likely never be the case. The error message you will get, will look like this: Msg 220, Level 16, State 2, Line 10 Arithmetic