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Posted to dev@kafka.apache.org by "Geoff Anderson (JIRA)" <ji...@apache.org> on 2016/05/20 22:31:12 UTC

[jira] [Created] (KAFKA-3742) Can't run connect-distributed with -daemon flag

Geoff Anderson created KAFKA-3742:
-------------------------------------

             Summary: Can't run connect-distributed with -daemon flag
                 Key: KAFKA-3742
                 URL: https://issues.apache.org/jira/browse/KAFKA-3742
             Project: Kafka
          Issue Type: Bug
    Affects Versions: 0.10.0.0
            Reporter: Geoff Anderson
            Priority: Minor


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

This error probably applies to other scripts as well.

Running connect-distributed thusly
{code}connect-distributed -daemon /tmp/connect-distributed.properties{code}

gives errors like this 
{code}
root@worker1:/home/vagrant# connect-distributed -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)
{code}

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

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

The scripts for which -daemon works use something like
{code}
EXTRA_ARGS="-name kafkaServer -loggc"

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

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

but connect-distributed does this:
{code}
exec $(dirname $0)/kafka-run-class org.apache.kafka.connect.cli.ConnectDistributed "$@"
{code}




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