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

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Updated: Jan-20

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Troubleshooting Background       
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Log Context
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Troubleshooting background

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

1 Es6 4 Will Not Start Up With Gce Di  

2 Es 5 5 0 Will Not Start Up With Gce  

Log Context

Log ”Problem fetching instance list for zone {}” classname is
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) -> {


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