Hi Jon,

Did you check the software prerequisite minimum versions listed in this
page: https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fslurm.schedmd.com%2frest_quickstart.html%23prereq&c=E,1,vGDIY8GprI0f-1TQWtwOkaK69kYmK8KVm0ufe88JHRyla7Bow83wWpslJHkR079oQUKb7TVLX9sUcl3ojNLC0Om_3pyDuLw0CybskwWuDzo1&typo=1

IHTH,
Ole

On 8/13/2025 4:28 PM, Jon Marshall via slurm-users wrote:
> Hi,
>
> I feel like I must have missed something obvious here, so hopefully
> someone can spot it! We recently updated to Slurm 24.11.6 on our cluster
> and I made sure to compile --with slurmrestd and --with jwt, as there
> are a few things I've been meaning to try out with the REST API.
>
>  >From the rpmbuild config.log I get:
>
>    $ ./configure --build=x86_64-redhat-linux-gnu --host=x86_64-redhat-
> linux-gnu --program-prefix= --disable-dependency-tracking --prefix=/usr
> --exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/
> etc/slurm --datadir=/usr/share --includedir=/usr/include --libdir=/usr/
> lib64 --libexecdir=/usr/libexec --localstatedir=/var --sharedstatedir=/
> var/lib --mandir=/usr/share/man --infodir=/usr/share/info --with-
> systemdsystemunitdir=/usr/lib/systemd/system --enable-pkgconfig --with-jwt
> --
> configure:21020: checking for jwt.h
> configure:21020: gcc -c -DNUMA_VERSION1_COMPATIBILITY -O2 -g -pipe -Wall
> -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-
> D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-
> switches -Wl,-z,lazy -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64
> -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -
> fcf-protection -fno-omit-frame-pointer  conftest.c >&5
> configure:21020: $? = 0
> configure:21020: result: yes
> configure:21028: checking for jwt_add_header in -ljwt
> configure:21051: gcc -o conftest -DNUMA_VERSION1_COMPATIBILITY -O2 -g -
> pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-
> D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-
> switches -Wl,-z,lazy -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64
> -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -
> fcf-protection -fno-omit-frame-pointer  -Wl,-z,relro  -Wl,-z,lazy
> conftest.c -ljwt  -ldl -lrt -lm -lresolv  >&5
> configure:21051: $? = 0
> configure:21061: result: yes
> --
> config.status:1746: creating src/plugins/auth/jwt/Makefile
> --
> config.status:1746: creating src/slurmrestd/plugins/auth/jwt/Makefile
> --
> ac_cv_header_jwt_h=yes
> --
> ac_cv_lib_jwt_jwt_add_header=yes
> --
> JWT_LDFLAGS='-ljwt'
>
> And:
>
> configure:26873: checking whether to compile slurmrestd
> configure:26904: result: yes
> --
> configure:26915: checking for slurmrestd default port
> configure:26933: result: 6820
>
> And indeed I get a slurmrestd package out of it, which I've successfully
> installed with no errors. I've created a JWT key and rolled it out to
> the controller node, but when I go to check auth types I get:
>
> slurmrestd -a rest_auth/jwt
> slurmrestd: fatal: Unable to find plugin: rest_auth/jwt
>
> Running an strace on this process shows that it does in fact stat
> the .so that does in fact exist:
>
> stat("/usr/lib64/slurm/https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fauth_jwt.so&c=E,1,pzCV_3-iTZai02HQXL4dMosthihwRaYiqdXWywyaBQ04wuqxYDySRp3UVZedug3FJ93qz-ObhCNbuUYk7Yno9bqH3sec4RzUX6HW5VTing,,&typo=1", {st_mode=S_IFREG|0755,
> st_size=283728, ...}) = 0
>
> And I'm kind of stumped now. I've checked through all the resolved bug
> tickets to see if I can spot what is wrong but I'm getting nothing, and
> I can't find anything in the mailing lists either, other than things
> I've checked. Has anyone else had similar issues, or can someone see the
> blindingly obvious thing I'm missing?

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