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Issues of our 1.9.3-3 dcache installation
gPlazma problems
Trying to debug an issue of failing phedex CMS exports. They all fail with authentication problems as indicated by the errors from SRM/FTS.
My first suspicion is that the users who fail do not use real VOMS proxies. Therefore I also generated myself a naked grid proxy and started to test:
To have a deeper look into the problem, I am executing srm requests against our dcache while following the gPlazma log, and stracing the process:
From the UI
srmls -l srm://storage01.lcg.cscs.ch:8443/srm/managerv2?SFN=/pnfs/lcg.cscs.ch/cms
Every such event leaves in the
/var/log/d-cache/gPlazma-storage02Domain.log
:
Exception thrown by gplazma.authz.plugins.vorolemap.VORoleMapAuthzPlugin: java.lang.NullPointerException
22 Sep 2009 16:47:42 (gPlazma) [v2:srmLs:71788691 SRM-storage01] caught exception:
Following the cell and its siblings for some sys calls with strace
strace -e trace=open,stat64 -fp 4749
Process 4749 attached with 84 threads - interrupt to quit
every invocation of srmls with the non-VOMS-proxy resulted in the following outputs from strace (sometimes there were additional files read, but always there was a SIGSEGV):
[pid 6925] stat64("/opt/d-cache/etc/dcachesrm-gplazma.policy", {st_mode=S_IFREG|0444, st_size=3859, ...}) = 0
[pid 6925] stat64("/etc/grid-security/grid-vorolemap", {st_mode=S_IFREG|0444, st_size=42556, ...}) = 0
[pid 6925] --- SIGSEGV (Segmentation fault) @ 0 (0) ---
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DerekFeichtinger - 2009-09-22