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 <[email protected]<mailto:[email protected]>> wrote: 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. On 4/24/19 12:05 PM, Harms, Kevin wrote: 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 [email protected]<mailto:[email protected]> http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org -- Nathaniel Clark Senior Software Engineer Whamcloud / DDN _______________________________________________ lustre-discuss mailing list [email protected]<mailto:[email protected]> http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
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