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I am not a die-hard linux engineer, but I am having some problems with starting Elastic Search. Some stats:

Server: Ubuntu Server 11.04 Elastic Search: 1.2.3 (installed with appitude)

When I start Elastic Search it 'starts'without an error:

* Starting Elasticsearch Server

(Over and over again)

When I run status I get:

* could not access PID file for elasticsearch

The pid file located here has the right permissions (I guess?):

-rw-r--r-- 1 elasticsearch elasticsearch 0 2014-08-11 12:26 /var/run/elasticsearch.pid

Also the elasticsearch user exists in the /etc/passwd file. I also tried to purge elastic search and install it over again but that didn't help.

Any suggestions?

Kees Schepers
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  • What is the output of: `id elasticsearch` ? – Nomad Aug 11 '14 at 10:59
  • `uid=113(elasticsearch) gid=115(elasticsearch) groups=115(elasticsearch)` Seems right? – Kees Schepers Aug 11 '14 at 11:10
  • Looks right, I think you should start looking for an error log (/var/log/messages or a specific if there is one for elasticsearch). Maybe the error you get from status is just misleading... – Nomad Aug 11 '14 at 11:16
  • Thanks. I am searching, but the /var/log/elasticsearch folder is empty and I don't have /var/log/messages. Also checked syslog but nothing usefull found. – Kees Schepers Aug 11 '14 at 11:28
  • What does the pidfile contain? Have you tried deleting it to let it be recreated? – Nomad Aug 11 '14 at 11:30
  • It's an empty file, and I deleted it more then once but unfortunetly it didn't help.. – Kees Schepers Aug 11 '14 at 11:35

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The problem was that somehow I managed to install a ElasticSearch version which required Java 7 (openjdk-7-*) which isn't support for Ubuntu 11.04.

The reason I wanted to update is because of a vulnerability which makes your server usable for DDOS attacks.

I finally fixed the problem by downgrading Elastic Search to version 1.1.2 and adding firewall rules to my iptables.

Kees Schepers
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