Briefly, this error occurs when Elasticsearch is unable to establish a connection with the remote clusters within the specified timeout period. This could be due to network issues, incorrect cluster settings, or the remote clusters being down. To resolve this, you can check the network connectivity, verify the cluster settings, or ensure that the remote clusters are up and running. Additionally, you might want to increase the timeout period if the network latency is high.
This guide will help you check for common problems that cause the log ” failed to connect to remote clusters within {} ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: .
Log Context
Log “failed to connect to remote clusters within {}” classname is RemoteClusterService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :
try {
future.get(timeValue.millis(); TimeUnit.MILLISECONDS);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
} catch (TimeoutException ex) {
logger.warn("failed to connect to remote clusters within {}"; timeValue.toString());
} catch (Exception e) {
logger.warn("failed to connect to remote clusters"; e);
}
}
