Hi,
I just the following method for connection creation in ES:
public static Client getClient() {
if (client == null) {
synchronized (mutex) {
settings =
ImmutableSettings.settingsBuilder().put(CONFIG_CLUSTER_NAME,
CLUSTER_NAME).build();
client = new TransportClient(settings);
for (String address : transportAddress ) {
((TransportClient) client).addTransportAddress(new
InetSocketTransportAddress(address, transportPort));
}
logger.info("Elastic search client initialized");
}
}
logger.info("Returning the existing client");
return client;
}
But for this application, when I ran `netstat` on that host, I saw many
open connections:
tcp 0 0 ::ffff:*.*.*.*:59380 ::ffff:*.*.*.*:9300
ESTABLISHED 6552/java
tcp 0 0 ::ffff:*.*.*.*:48829 ::ffff:*.*.*.*:9300
ESTABLISHED 6552/java
tcp 0 0 ::ffff:*.*.*.*:42944 ::ffff:*.*.*.*:9300
TIME_WAIT -
tcp 0 0 ::ffff:*.*.*.*:42838 ::ffff:*.*.*.*:9300
ESTABLISHED 6552/java
tcp 0 0 ::ffff:*.*.*.*:8080 ::ffff:*.*.*.*:57649
ESTABLISHED 6552/java
tcp 0 0 ::ffff:*.*.*.*:55154 ::ffff:*.*.*.*:3306
ESTABLISHED 6552/java
tcp 0 1 ::ffff:*.*.*.*:36889 ::ffff:*.*.*.*:9300
FIN_WAIT1 -
tcp 0 0 ::ffff:*.*.*.*:42829 ::ffff:*.*.*.*:9300
ESTABLISHED 6552/java
tcp 0 0 ::ffff:*.*.*.*:37169 ::ffff:*.*.*.*:9300
TIME_WAIT -
tcp 0 0 ::ffff:*.*.*.*:59390 ::ffff:*.*.*.*:9300
ESTABLISHED 6552/java
tcp 0 0 ::ffff:*.*.*.*:58283 ::ffff:*.*.*.*:9300
TIME_WAIT -
tcp 0 0 ::ffff:*.*.*.*:59383 ::ffff:*.*.*.*:9300
ESTABLISHED 6552/java
tcp 0 0 ::ffff:*.*.*.*:55855 ::ffff:*.*.*.*:9300
TIME_WAIT -
tcp 0 0 ::ffff:*.*.*.*:48823 ::ffff:*.*.*.*:9300
ESTABLISHED 6552/java
tcp 0 1 ::ffff:*.*.*.*:36884 ::ffff:*.*.*.*:9300
FIN_WAIT1 -
I have removed the ip with *.*.*.*. But there are many more open
connections than this.
Questions:
-> How do I manually go and close all these connections?
-> Is there any mistake in connection creation?
-> Sometimes, even if ES is running and connection is also created, it
doesn't get any response. After restarting the application, it returns
result for the same query. How should I analyze this?
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