}
        } catch (final Exception e) {
            logger.debug("Failed to remove heartbeat.", e);
        }
    }

    /**
     * Returns a list of currently active instances based on non-expired heartbeat documents.
     *
     * @return the list of active instances.
     */
    public List<InstanceInfo> getActiveInstances() {
        final List<InstanceInfo> instances = new ArrayList<>();

        final String[] fields = fessConfig.getRagChatContentFields().split(",");

        if (logger.isDebugEnabled()) {
            logger.debug("[RAG] Fetching full content. docIds={}, fields={}", docIds, String.join(",", fields));
        }

        try {
            final List<Map<String, Object>> results = ComponentUtil.getSearchHelper()

				<exclusion>
					<groupId>org.opensearch.plugin</groupId>
					<artifactId>lang-painless</artifactId>
				</exclusion>
				<exclusion>
					<groupId>org.opensearch.plugin</groupId>
					<artifactId>parent-join-client</artifactId>
				</exclusion>
				<exclusion>
					<groupId>org.opensearch.plugin</groupId>
					<artifactId>transport-netty4-client</artifactId>
				</exclusion>
				<exclusion>

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","val","_isAMomentObject","_i","_f","_l","_tzm","_isUTC","_offset","_locale","Moment","config","updateOffset","isMoment","warn","msg","suppressDeprecationWarnings","console","deprecate","firstTime","deprecationHandler","arg","key","args","slice","join","Error","stack","keys","deprecations","deprecateSimple","name","isFunction","Function","mergeConfigs","parentConfig","childConfig","Locale","set","zeroFill","number","targetLength","forceSign","absNumber","Math","abs","zerosToFill","pow","max","s...

font-size(inherit);\n  line-height: inherit;\n}\n\nbutton,\ninput {\n  overflow: visible; // Show the overflow in Edge\n}\n\nbutton,\nselect {\n  text-transform: none; // Remove the inheritance of text transform in Firefox\n}\n\n// Set the cursor for non-`<button>` buttons\n//\n// Details at https://github.com/twbs/bootstrap/pull/30562\n[role=\"button\"] {\n  cursor: pointer;\n}\n\n// Remove the inheritance of word-wrap in Safari.\n//\n// Details at https://github.com/twbs/bootstrap/issues/24990\nselect...