maxmustermann/kibana
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

ESExporter moves failed hosts to the end of the host list to avoid retrying them every 5s.

Browse source
This commit is contained in:
Boaz Leskes 2013-12-23 11:40:34 +01:00
parent 62ce5369b3
commit 4c4ea87b7f
1 changed files with 31 additions and 18 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

49
exporter/src/main/java/org/elasticsearch/marvel/monitor/exporter/ESExporter.java
View file

@ -53,7 +53,7 @@ import java.util.Map;
public class ESExporter extends AbstractLifecycleComponent<ESExporter> implements StatsExporter<ESExporter> {
final String[] hosts;
volatile String[] hosts;
final String indexPrefix;
final DateTimeFormatter indexTimeFormatter;
final int timeout;
@ -239,24 +239,37 @@ public class ESExporter extends AbstractLifecycleComponent<ESExporter> implement
}
private HttpURLConnection openConnection(String method, String uri, String contentType) {
for (String host : hosts) {
try {
URL templateUrl = new URL("http://" + host + uri);
HttpURLConnection conn = (HttpURLConnection) templateUrl.openConnection();
conn.setRequestMethod(method);
conn.setConnectTimeout(timeout);
if (contentType != null) {
conn.setRequestProperty("Content-Type", XContentType.SMILE.restContentType());
}
conn.setUseCaches(false);
if (method.equalsIgnoreCase("POST") || method.equalsIgnoreCase("PUT")) {
conn.setDoOutput(true);
}
conn.connect();
int hostIndex = 0;
try {
for (; hostIndex < hosts.length; hostIndex++) {
String host = hosts[hostIndex];
try {
URL templateUrl = new URL("http://" + host + uri);
HttpURLConnection conn = (HttpURLConnection) templateUrl.openConnection();
conn.setRequestMethod(method);
conn.setConnectTimeout(timeout);
if (contentType != null) {
conn.setRequestProperty("Content-Type", XContentType.SMILE.restContentType());
}
conn.setUseCaches(false);
if (method.equalsIgnoreCase("POST") || method.equalsIgnoreCase("PUT")) {
conn.setDoOutput(true);
}
conn.connect();
return conn;
} catch (IOException e) {
logger.error("error connecting to [{}]", e, host);
return conn;
} catch (IOException e) {
logger.error("error connecting to [{}]", e, host);
}
}
} finally {
if (hostIndex > 0 && hostIndex < hosts.length) {
logger.debug("moving [{}] failed hosts to the end of the list", hostIndex + 1);
String[] newHosts = new String[hosts.length];
System.arraycopy(hosts, hostIndex, newHosts, 0, hosts.length - hostIndex);
System.arraycopy(hosts, 0, newHosts, hosts.length - hostIndex - 1, hostIndex + 1);
hosts = newHosts;
logger.debug("preferred target host is now [{}]", hosts[0]);
}
}