Briefly, this error occurs when Elasticsearch is configured to use default proxy settings for HTTP input and webhook actions for Slack and PagerDuty. This might cause issues if the default proxy settings are incorrect or if the proxy server is down. To resolve this, you can either update the proxy settings in Elasticsearch to match your environment or ensure that the proxy server is up and running. Additionally, you can disable the use of proxy for these actions if it’s not required in your setup.
This guide will help you check for common problems that cause the log ” Using default proxy for http input and slack/pagerduty/webhook actions [{}:{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.
Log Context
Log “Using default proxy for http input and slack/pagerduty/webhook actions [{}:{}]” classname is HttpClient.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :
Scheme proxyScheme = HttpSettings.PROXY_SCHEME.exists(settings)
? Scheme.parse(HttpSettings.PROXY_SCHEME.get(settings))
: Scheme.HTTP;
int proxyPort = HttpSettings.PROXY_PORT.get(settings);
if (proxyPort != 0 && Strings.hasText(proxyHost)) {
logger.info("Using default proxy for http input and slack/pagerduty/webhook actions [{}:{}]"; proxyHost; proxyPort);
} else if (proxyPort != 0 ^ Strings.hasText(proxyHost)) {
throw new IllegalArgumentException(
"HTTP proxy requires both settings: ["
+ HttpSettings.PROXY_HOST.getKey()
+ "] and ["
