running elk using docker 1.9.1 and docker-compose 1.5.2 I receive the following directives:

elk_1 | tail: unrecognized file system type 0x794c7630 for '/var/log/elasticsearch/elasticsearch.log'. please report this to bug-coreutils@gnu.org. reverting to polling

elk_1 | tail: unrecognized file system type 0x794c7630 for '/var/log/logstash/logstash.log'. please report this to bug-coreutils@gnu.org. reverting to polling

happy holidays!