Environment: Bitnami WildFly 15 - Linux Ubuntu 16.04.5 LTS with Apache configured as reverse proxy.

My disk space is virtually occupied by deleted file descriptors, hundreds of thousands after a few days; this is the command for retrieving this files:

lsof -nP | grep "deleted"

java        703 26846          wildfly 7037r      REG                8,1      391018    1039461 /opt/bitnami/wildfly/standalone/tmp/legal-restapi.war/undertow4334305401660429764upload (deleted)
java        703 26846          wildfly 7038r      REG                8,1       43540    1039462 /opt/bitnami/wildfly/standalone/tmp/legal-restapi.war/undertow3137300962477792670upload (deleted)
java        703 26846          wildfly 7039r      REG                8,1       15318    1039463 /opt/bitnami/wildfly/standalone/tmp/legal-restapi.war/undertow2237556864044789539upload (deleted)
(hundreds of thousands after a few days)...

Disk free at system startup:

df -h
Filesystem                              Size  Used Avail Use% Mounted on
/dev/sda1                                30G  3.4G   26G  12% /

Disk free after some hours:

df -h
Filesystem                              Size  Used Avail Use% Mounted on
/dev/sda1                                30G  5.9G   24G  12% /

No real files are occupying this space; I checked with du (disk usage) command.

Restarting WildFly service frees up space on disk.

Is this a WildFly bug or is my a wrong configuration? Bitnami WildFly 9 and 10 do not present these problems. I cannot restart my services every 5 days.

Some idea?

closed as too broad by DavidPostill Dec 22 '18 at 19:52

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