blob: 57ae62c0ebcc65e26db99f3c27a19315da9ebf35 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
// Copyright Verizon Media. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.zookeeper;
import org.apache.zookeeper.KeeperException;
import org.apache.zookeeper.admin.ZooKeeperAdmin;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* @author hmusum
*/
@SuppressWarnings("unused") // Created by injection
public class VespaZooKeeperAdminImpl implements VespaZooKeeperAdmin {
private static final Logger log = java.util.logging.Logger.getLogger(VespaZooKeeperAdminImpl.class.getName());
@Override
public void reconfigure(String connectionSpec, String joiningServers, String leavingServers) throws ReconfigException {
try {
ZooKeeperAdmin zooKeeperAdmin = new ZooKeeperAdmin(connectionSpec,
(int) sessionTimeout().toMillis(),
(event) -> log.log(Level.INFO, event.toString()));
long fromConfig = -1;
// Using string parameters because the List variant of reconfigure fails to join empty lists (observed on 3.5.6, fixed in 3.7.0)
byte[] appliedConfig = zooKeeperAdmin.reconfigure(joiningServers, leavingServers, null, fromConfig, null);
log.log(Level.INFO, "Applied ZooKeeper config: " + new String(appliedConfig, StandardCharsets.UTF_8));
} catch (KeeperException e) {
if (retryOn(e))
throw new ReconfigException(e);
else
throw new RuntimeException(e);
} catch (IOException | InterruptedException e) {
throw new RuntimeException(e);
}
}
private static boolean retryOn(KeeperException e) {
return e instanceof KeeperException.ReconfigInProgress ||
e instanceof KeeperException.ConnectionLossException ||
e instanceof KeeperException.NewConfigNoQuorum;
}
}
|
