[jira] [Created] (ATLAS-4554) Elasticsearch: Add Elasticsearch backend monitor && Fix some bugs when using atlas with elasticsearch backend

["Xingyu Zha (Jira)" <ji...@apache.org>]

Xingyu Zha created ATLAS-4554:
---------------------------------

             Summary: Elasticsearch: Add Elasticsearch backend monitor && Fix some bugs when using atlas with elasticsearch backend
                 Key: ATLAS-4554
                 URL: https://issues.apache.org/jira/browse/ATLAS-4554
             Project: Atlas
          Issue Type: Improvement
          Components:  atlas-core, atlas-intg
    Affects Versions: 3.0.0
            Reporter: Xingyu Zha
             Fix For: 3.0.0
         Attachments: feat__add_elasticsearch_backend_monitor.patch

When using elasticsearch as the background index, the status of solr is displayed as unhealthy.
{code:java}
if (!isHealthy && (prevSolrHealthCheckTime == 0 || currentTime - prevSolrHealthCheckTime > SOLR_STATUS_LOG_FREQUENCY_MS)) {
    LOG.info("Solr Health: Unhealthy!"); {code}
Looking at the code, it is found that atlas currently only has the health monitoring of the solr index, so the relevant monitoring function about elasticsearch has been added.
{code:java}
if (backendSolr.equals(backend) && isSolrHealthy()) {
    isHealthy = true;
    LOG.info("Backend Solr Health: Healthy!");
}
else if (backendElasticSearch.equals(backend) && isElasticsearchHealthy()) {
    isHealthy = true;
    LOG.info("Backend ElasticSearch Health: Healthy!");
} {code}
By the way, ElasticSearch7index support was added, extracted from the org.janusgraph.diskstorage.es code, and adjusted with method to new client instance
{code:java}
graphdb/janus/src/main/java/org/janusgraph/diskstorage/es/ElasticSearch7Index.java {code}
At the same time, in the process of use, there is also a problem that cannot be used due to log.info problems, and it has been fixed here
{code:java}
LOG.info("Setting " + SOLR_WAIT_SEARCHER_CONF + " = " + getBoolean(SOLR_WAIT_SEARCHER_CONF)); {code}



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