[Mauiusers] Maui and Slurm Won't Sync Up

[jmkatcher at gmail.com]

I've been using a Slurm based cluster for a while and have been
exploring integrating Maui to add a few more capabilities.

Platform: Linux x64 (OpenSuSE 10.3)
Slurm: 1.2.24
Maui: 3.26p19 and p20-snapshots (compiled 32 and 64-bit)

The major problem is that Maui won't successfully talk to Slurm.
The maui.cfg file contains the recommended:

RMCFG[x] TYPE=WIKI
RMPORT 7321
RMHOST x
RMAUTHTYPE[x] NONE

On any request/poll from Maui, Slurm logs:

slurmctld: debug:  wiki msg recv:CMD=GETNODES ARG=0:ALL
slurmctld: error: wiki request lacks AUTH=
slurmctld: debug: wiki msg send:CK=9d98dbc7c83d9ee2 TS=1205867067
AUTH=slurm DT=SC=-300 RESPONSE=request lacks AUTH

As an experiment I commented out the Maui RMAUTHTYPE to let it default
to 'checksum' and Slurm seems happy, acknowledging all commands sent
to it.  However on the Maui side, it now sees the checksums as invalid
and refuses to process the results:
03/18 11:12:33 MWikiDoCommand(test64,7321,9000000,CHECKSUM,CMD=GETNODES ARG=0:AL
L,Data,DataSize,SC)
03/18 11:12:33 MSUSendData(S,9000000,TRUE,FALSE)
03/18 11:12:33 INFO:     packet sent (78 bytes of 78)
03/18 11:12:33 INFO:     command sent to server
03/18 11:12:33 INFO:     message sent: 'CMD=GETNODES ARG=0:ALL'
03/18 11:12:33 MSURecvData(S,9000000,TRUE,SC,EMsg)
03/18 11:12:33 MSURecvPacket(8,BufP,9,NULL,9000000,SC)
03/18 11:12:33 MSURecvPacket(8,BufP,160,NULL,9000000,SC)
03/18 11:12:33 ALERT:    checksum does not match
(4c829892eb7ea86e:25173bc7f28ee125)  request 'TS=1205863953 AUTH=slurm
DT=SC=0 ARG=1#test64:STATE=Idle;CMEMORY=499;CDISK=7319;CPROC=1;'
03/18 11:12:33 ERROR:    cannot receive data from server test64:7321
03/18 11:12:33 MSUDisconnect(S)
03/18 11:12:33 ALERT:    cannot get node list from WIKI RM
03/18 11:12:33 ALERT:    cannot load cluster resources on RM (RM
'test64' failed in function 'clusterquery')
03/18 11:12:33 WARNING:  no resources detected

Any advice would be greatly appreciated,

Jeff Katcher
jmkatcher at gmail.com