JBoss - Unable to start disk full maillog

to clear out maillog from system manager follow the procedure below

 

root >df -k
Filesystem                            1K-blocks    Used Available Use% Mounted on
/dev/mapper/smgrvg01-lv_root            4343808 2042116   2301692  48% /
devtmpfs                                6056520       0   6056520   0% /dev
tmpfs                                   6068832       8   6068824   1% /dev/shm
tmpfs                                   6068832  586280   5482552  10% /run
tmpfs                                   6068832       0   6068832   0% /sys/fs/cgroup
/dev/mapper/smgrvg01-lv_var             5724160 1704032   4020128  30% /var
/dev/mapper/smgrvg01-lv_home            1935360  366932   1568428  19% /home
/dev/mapper/smgrvg01-lv_var_log         1935360 1935340        20 100% /var/log
/dev/mapper/smgrvg01-lv_var_log_audit   1935360   33520   1901840   2% /var/log/audit
/dev/mapper/smgrvg01-lv_data           13854720  926576  12928144   7% /var/lib/pgsql/data
/dev/mapper/smgrvg01-lv_opt            10078208 8282612   1795596  83% /opt
/dev/mapper/smgrvg01-lv_tmp             1525760   33192   1492568   3% /tmp
/dev/sda1                                520868  254280    266588  49% /boot
/dev/sdc                               15718400   87540  15630860   1% /emdata
/dev/sdd                               22009344 1435376  20573968   7% /swlibrary
/dev/mapper/smgrvg02-lv_cnd             1038336   70188    968148   7% /var/opt/nortel/cnd
/dev/mapper/smgrvg02-lv_perfdata       25149444  116200  25033244   1% /perfdata
tmpfs                                   1213768       0   1213768   0% /run/user/779

du -h --max-depth=1 | sort -hr

ls -l --block-size=M



to zero out maillog run command:

/dev/null > /var/log/maillog