[KAFKA-3742] Can't run connect-distributed.sh with -daemon flag

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.10.0.0
• Fix Version/s: 0.10.1.0
• Component/s: connect
• Assignee: Liquan Pei
• Reporter: Geoff Anderson
• Created: 20/May/16 22:30
• Updated: 26/Aug/16 03:23
• Resolved: 26/Aug/16 03:23

Description

Running on ubuntu 14.04. Discovered while experimenting various different kafka components.

This error probably applies to other scripts as well.

Running connect-distributed.sh thusly

connect-distributed.sh -daemon /tmp/connect-distributed.properties

gives errors like this

root@worker1:/home/vagrant# connect-distributed.sh -daemon /tmp/connect-distributed.properties
Exception in thread "main" java.io.FileNotFoundException: -daemon (No such file or directory)
	at java.io.FileInputStream.open(Native Method)
	at java.io.FileInputStream.<init>(FileInputStream.java:146)
	at java.io.FileInputStream.<init>(FileInputStream.java:101)
	at org.apache.kafka.common.utils.Utils.loadProps(Utils.java:446)
	at org.apache.kafka.connect.cli.ConnectDistributed.main(ConnectDistributed.java:61)

Note that this runs:
connect-distributed.sh /tmp/connect-distributed.properties -daemon
However, the daemon flag is not activated in this case

Underlying cause:
kafka-run-class.sh assumes -daemon comes before the classpath

The scripts for which -daemon works use something like

EXTRA_ARGS="-name kafkaServer -loggc"

COMMAND=$1
case $COMMAND in
  -daemon)
    EXTRA_ARGS="-daemon "$EXTRA_ARGS
    shift
    ;;
  *)
    ;;
esac

exec $base_dir/kafka-run-class.sh $EXTRA_ARGS io.confluent.support.metrics.SupportedKafka "$@"

but connect-distributed does this:

exec $(dirname $0)/kafka-run-class.sh org.apache.kafka.connect.cli.ConnectDistributed "$@"

Issue Links

• links to: GitHub Pull Request #1717