How To Solve Issues Related to Log – Problem fetching instance list for zone

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Related Issues – selected resources on related issues  
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Troubleshooting background

To troubleshoot Elasticsearch log “Problem fetching instance list for zone” it’s important to know common problems related to Elasticsearch concepts: cloud-aws, discovery-gce, instances, plugins. See below-detailed explanations complete with common problems, examples and useful tips.


To help troubleshoot related issues we have gathered selected Q&A from the community and issues from Github , please review the following for further information :

Es6 4 Will Not Start Up With Gce Di
discuss.elastic.co/t/es6-4-will-not-start-up-with-gce-discovery/150475

 

Es 5 5 0 Will Not Start Up With Gce
discuss.elastic.co/t/es-5-5-0-will-not-start-up-with-gce-discovery/94541

 


Log Context

Log ”Problem fetching instance list for zone” classname is GceInstancesServiceImpl.java
We have extracted the following from Elasticsearch source code to get an in-depth context :

<pre class="wp-block-syntaxhighlighter-code">                 });
                // assist type inference
                return instanceList.isEmpty() || instanceList.getItems() == null ?
                    Collections.<Instance>emptyList() : instanceList.getItems();
            } catch (IOException e) {
                logger.warn((Supplier<?>) () -> new ParameterizedMessage("Problem fetching instance list for zone {}"; zoneId); e);
                logger.debug("Full exception:"; e);
                // assist type inference
                return Collections.<Instance>emptyList();
            }
        }).reduce(new ArrayList<>(); (a; b) -> {




</pre>

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