</txt>

</msg>

<msg time='2017-10-26T23:40:33.228+00:00' org_id='oracle' comp_id='tnslsnr'

 type='UNKNOWN' level='16' host_id='e7bd4e34ce20'

 host_addr='172.17.0.2'>

 <txt>26-OCT-2017 23:40:33 * service_update * orcl * 0

 </txt>

</msg>

[oracle@e7bd4e34ce20 admin]$ tail -f /u01/app/oracle/diag/tnslsnr/e7bd4e34ce20/listener/alert/log.xml 

 host_addr='172.17.0.2'>

 <txt>26-OCT-2017 23:40:24 * service_register * orcl * 0

 </txt>

</msg>

<msg time='2017-10-26T23:40:33.228+00:00' org_id='oracle' comp_id='tnslsnr'

 type='UNKNOWN' level='16' host_id='e7bd4e34ce20'

 host_addr='172.17.0.2'>

 <txt>26-OCT-2017 23:40:33 * service_update * orcl * 0

 </txt>

</msg>

tail: unrecognized file system type 0x794c7630 for '/u01/app/oracle/diag/tnslsnr/e7bd4e34ce20/listener/alert/log.xml'. please report this to bug-coreutils@gnu.org. reverting to polling