why elasticsearch won't run on Ubuntu 14.04?

Question

I\'m trying to determine if the elasticsearch instance is running, but it doesn\'t appear to be:

ubuntu@ubuntu:~$ sudo service elasticsearch status
 * elasti         


        

Answer 1

For me, this problem was caused by the Elasticsearch Data and/or Logs directory being at 100% disk usage. Run df -h to see whether the directory your Elasticsearch process is using for data and logs has free space or not.

Answer 2

The elasticsearch user cannot write the PID file because it has no permissions to create a file in /var/run/:

FileNotFoundException[/var/run/elasticsearch.pid (Keine Berechtigung)]

The fix: create the directory /var/run/elasticsearch/, change its ownership to elasticsearch:elasticsearch, and change the PID file location to this directory in the init script.

mkdir -p /var/run/elasticsearch
chown elasticsearch: /var/run/elasticsearch
sed -e 's|^PID_FILE=.*$|PID_FILE=/var/run/$NAME/$NAME.pid|g' -i /etc/init.d/elasticsearch

Once you get that far, here's the next error you might see:

ElasticsearchIllegalStateException[Failed to obtain node lock, is the following location writable?: [/var/lib/elasticsearch/elasticsearch]]

Again a resource does not have the correct permissions for the elasticsearch user.

chown -R elasticsearch: /var/lib/elasticsearch

Not done yet. Now you have to edit /etc/init.d/elasticsearch and remove this line:

test "$START_DAEMON" == true || exit 0

This line is utter garbage and is guaranteed to cause an exit.

Now it should finally start.

Answer 3

This command resolved my issue:

sudo chown -R elasticsearch:elasticsearch /var/lib/elasticsearch/

Referenced from @imsaar github