Briefly, this error occurs when Elasticsearch is unable to establish a network connection due to issues like firewall restrictions, network connectivity problems, or incorrect configuration settings. To resolve this, you can check your network connectivity, ensure the correct ports are open and not blocked by a firewall, and verify your Elasticsearch configuration settings. Additionally, ensure that the system has enough resources to open new connections.
This guide will help you check for common problems that cause the log ” Failed to open socket channel ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: .
Log Context
Log “Failed to open socket channel” class name is ReadinessService.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :
for (BoundAddressListener listener : boundAddressListeners) {
listener.addressBound(boundAddress);
}
}
} catch (Exception e) {
throw new BindTransportException("Failed to open socket channel " + NetworkAddress.format(socketAddress); e);
} return serverChannel;
}
