[TIKA-3441] tika server stuck in loop trying to bind

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.25
• Fix Version/s: 2.0.0, 1.27
• Component/s: docker, server

Environment

PID TTY STAT TIME COMMAND
{{ 1 ? Ssl 2:54 java -jar /tika-server-1.25.jar -h 0.0.0.0 -spawnChild TIKA_CHILD_JVM_OPTS=-JXmx3g -JXX:+ExitOnOutOfMemoryError -status}}
{{ 127 ? Z 1:15 [tesseract] <defunct>}}
{{ 131 ? Z 1:31 [tesseract] <defunct>}}
{{ 139 ? Z 0:16 [tesseract] <defunct>}}
{{ 219 ? Z 40:20 [tesseract] <defunct>}}
{{ 324 ? Z 2:32 [tesseract] <defunct>}}
{{ 342 ? Z 0:09 [tesseract] <defunct>}}
{{ 343 ? Z 0:09 [tesseract] <defunct>}}
{{ 380 ? Z 0:00 [tesseract] <defunct>}}
{{ 430 ? Z 9:18 [tesseract] <defunct>}}
{{ 435 ? Z 4:52 [tesseract] <defunct>}}
{{ 446 ? Z 18:34 [tesseract] <defunct>}}
{{ 453 ? Z 22:33 [tesseract] <defunct>}}
{{ 461 ? Z 0:25 [tesseract] <defunct>}}
{{ 517 ? Z 4:35 [tesseract] <defunct>}}
{{ 526 ? Z 0:04 [tesseract] <defunct>}}
{{ 536 ? S 0:00 36:39}}
{{ 881708 pts/0 Ss 0:00 bash}}
{{ 883782 ? Sl 0:00 java -XX:+ExitOnOutOfMemoryError -Djava.awt.headless=true -cp /tika-server-1.25.jar org.apache.tika.server.TikaServerCli -h 0.0.0.0 TIKA_CHILD_JVM_OPTS=-JXmx3g -status --id ab854166-0a4b-4ecc-93a5-e4504d11e4e8}}
{{ 883801 pts/0 R+ 0:00 ps ax}}

• Assignee: Unassigned
• Reporter: Cristian Zamfir
• Created: 09/Jun/21 10:04
• Updated: 17/Jun/21 11:32
• Resolved: 17/Jun/21 11:32

Description

Tika seems to be stuck in a loop trying to bind. Please see the attached logs.
It is also using a lot of CPU while doing that, so in an environment with horizontal scaling it causes other containers to spin up.

This seems to happen from time to time to one of the multiple containers running, normally everything runs smoothly.  

Not sure why it fails to bind in the first place (it's running in docker).

I suspect that it may be related to the fact that it is trying to bind very quickly.

Ideas on how to debug this issue further are welcome.