[slurm-users] SlurmDBD setup with mysql

[Sajesh Singh]

Trying to setup accounting using the MySQL backend and I am getting errors from the slurmctld and slurm tools when trying to interact with the accounting database. Tried starting in debug as well, but could not see anything else that could point to what could be causing this issue. I have followed all steps listed at:

https://slurm.schedmd.com/accounting.html

The DBD daemon starts up without error as can be seen from the logs:

Slurmdbd.log:
[2019-01-17T10:18:40.365] chdir to /var/tmp
[2019-01-17T10:18:40.367] slurmdbd version 18.08.4 started

Though in the slurmctld.log file I am seeing the following:
[2019-01-17T10:19:40.024] error: Persistent Conn: read: No error
[2019-01-17T10:19:40.024] error: Persistent Conn: only read 117 of 2613 bytes
[2019-01-17T10:19:40.025] error: Persistent Conn: read: No error
[2019-01-17T10:19:40.025] error: Persistent Conn: only read 117 of 2613 bytes
[2019-01-17T10:19:40.025] error: Persistent Conn: read: No error
[2019-01-17T10:19:40.025] error: Persistent Conn: only read 119 of 1375731712 bytes
[2019-01-17T10:19:40.025] error: Persistent Conn: read: No error
[2019-01-17T10:19:40.025] error: Persistent Conn: only read 117 of 2613 bytes
[2019-01-17T10:19:40.025] error: slurm_persist_conn_open: Failed to unpack persistent connection init resp message from 127.0.0.1:3306
[2019-01-17T10:19:40.025] error: slurmdbd: Sending PersistInit msg: No error

I do restart all services in the order of munge, dbd, slurmctld after config changes.

The relevant configs are as follows:

slurmdbd.conf:
AuthType=auth/munge
DbdAddr=127.0.0.1
DbdHost=localhost
DbdPort=7031
SlurmUser=slurm
LogFile=/var/log/slurmdbd.log
PidFile=/var/run/slurmdbd.pid
StorageType=accounting_storage/mysql
StorageHost=localhost
StoragePort=3306
StoragePass=xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
StorageUser=slurm
StorageLoc=slurm_acct_db

slurm.conf:
AccountingStorageType=accounting_storage/slurmdbd
AccountingStorageHost=127.0.0.1
AccountingStoragePort=3306
AccountingStorageUser=slurm
AccountingStorageEnforce=limits
AccountingStoreJobComment=YES
AcctGatherNodeFreq=30
ClusterName=ares
JobAcctGatherFrequency=30
JobAcctGatherType=jobacct_gather/linux

We are running Slurm 18.04 on CentOS 7 with MariaDB as the backend.

-SS-
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