Re: [lustre-discuss] stat

2019-05-06 Thread Andreas Dilger
It would be useful to add an llapi_ function for this. In connection with LSOM the client will also be able to get the approximate file size, once https://jira.whamcloud.com/browse/LU-11367 is landed. Cheers, Andreas On May 1, 2019, at 09:35, Nathaniel Clark mailto:ncl...@whamcloud.com>>

Re: [lustre-discuss] stat

2019-05-01 Thread Nathaniel Clark
You should look at the IOC_MDC_GETFILEINFO ioctl.  "Example" usage can be found in lustre-release/lustre/utils/liblustreapi.c::get_lmd_info_fd(). There currently isn't a convenient liblustre API call for it. It doesn't poll the OSTs, it just grabs info from the MDT, so it will do fewer RPCs.

[lustre-discuss] stat

2019-04-24 Thread Harms, Kevin
Does Lustre provide an optimized stat("filename", ...) that requires fewer RPCs than fd=open("filename", ...); stat(fd); ? If so, are there any descriptions of this optimization? thanks, kevin ___ lustre-discuss mailing list