I installed per the instructions at https://opensearch.org/docs/latest/install-and-configure/install-opensearch/debian/#install-opensearch-from-an-apt-repository, but it fails to start:

$ sudo systemctl start opensearch

Job for opensearch.service failed because the control process exited with error code.

See "systemctl status opensearch.service" and "journalctl -xeu opensearch.service" for details.


$ systemctl status opensearch.service

× opensearch.service - OpenSearch

     Loaded: loaded (/lib/systemd/system/opensearch.service; enabled; preset: enabled)

     Active: failed (Result: exit-code) since Tue 2023-12-19 15:24:58 UTC; 7min ago

       Docs: https://opensearch.org/

    Process: 43719 ExecStart=/usr/share/opensearch/bin/systemd-entrypoint -p ${PID_DIR}/opensearch.pid --quiet (code=exited, status=1/FAILURE)

   Main PID: 43719 (code=exited, status=1/FAILURE)

        CPU: 2.001s


This is on opensearch.spi-tools.eqiad1.wikimedia.cloud.  It’s a brand new  debian bookworm instance I just spun up for this.  The only configuration I’ve done was to increase vm.max_map_count per their recommendation:

$ cat /proc/sys/vm/max_map_count 

262144


Any ideas?



On Dec 18, 2023, at 6:08 AM, Francesco Negri <fnegri@wikimedia.org> wrote:

On Sun, Dec 17, 2023 at 10:04 PM Roy Smith <roy@panix.com> wrote:
I want to install elasticsearch on a VPS instance.  I’m guessing this involves puppet, but can’t figure out the details.  The instructions at https://wikitech.wikimedia.org/wiki/Help:Puppet don’t match what I’m actually seeing in Horizon.  I go to the Puppet Configuration tab for my instance and there’s no project/common/all sub-pages as described under Apply a puppet role to or change hiera config of an individual instance.

Hi Roy,

Elasticsearch is licensed under a non-free license, so I would
encourage you to use OpenSearch instead, as the Cloud Services terms
of use [1] require that only OSI-compliant software is installed in
Cloud VPS instances.

The screenshots included in
https://wikitech.wikimedia.org/wiki/Help:Puppet are a bit old, the
interface is now slightly different. We will update that page, but in
the meantime my recommendation is to ignore Puppet and install
OpenSearch by logging into your Cloud VPS instance and following the
upstream instructions at
https://opensearch.org/docs/latest/install-and-configure/install-opensearch/debian/

Let us know if that works or if you run into further issues!

Thanks,
Francesco

[1] https://wikitech.wikimedia.org/wiki/Wikitech:Cloud_Services_Terms_of_use

--
Francesco Negri (he/him) -- IRC: dhinus
Site Reliability Engineer, Cloud Services team
Wikimedia Foundation
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