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Posted to notifications@dubbo.apache.org by "niguibin (via GitHub)" <gi...@apache.org> on 2023/06/09 09:24:10 UTC
[GitHub] [dubbo] niguibin opened a new issue, #12485: 关于 provider 的 sessionTimeout
niguibin opened a new issue, #12485:
URL: https://github.com/apache/dubbo/issues/12485
请问 CuratorFrameworkUtils 这个类的 buildCuratorFramework 方法中创建 CuratorFramework 时为什么没有执行 builder.sessionTimeoutMs(connectionURL.getParameter(SESSION_KEY, DEFAULT_SESSION_TIMEOUT_MS)) 方法，不能自己设置 sessionTimeout 呢
```
public class ZookeeperServiceDiscovery extends AbstractServiceDiscovery {
// ......
public ZookeeperServiceDiscovery(ApplicationModel applicationModel, URL registryURL) {
super(applicationModel, registryURL);
try {
this.curatorFramework = buildCuratorFramework(registryURL, this);
// ......
} catch (Exception e) {
throw new IllegalStateException("Create zookeeper service discovery failed.", e);
}
}
public static CuratorFramework buildCuratorFramework(URL connectionURL, ZookeeperServiceDiscovery serviceDiscovery) throws Exception {
CuratorFrameworkFactory.Builder builder = CuratorFrameworkFactory.builder()
.connectString(connectionURL.getBackupAddress())
.retryPolicy(buildRetryPolicy(connectionURL));
String userInformation = connectionURL.getUserInformation();
if (StringUtils.isNotEmpty(userInformation)) {
builder = builder.authorization("digest", userInformation.getBytes());
builder.aclProvider(new ACLProvider() {
@Override
public List<ACL> getDefaultAcl() {
return ZooDefs.Ids.CREATOR_ALL_ACL;
}
@Override
public List<ACL> getAclForPath(String path) {
return ZooDefs.Ids.CREATOR_ALL_ACL;
}
});
}
CuratorFramework curatorFramework = builder.build();
// ......
return curatorFramework;
}
// ......
```
作为 provider，当该 provider 下线之后，/services/xxx 节点仍然存在，等到默认 60s 之后才会删除，这期间当consumer 端请求该 provider 时就会报如下错误
```
org.apache.dubbo.rpc.StatusRpcException: DEADLINE_EXCEEDED : Waiting server-side response timeout by scan timer. start time: 2023-06-09 17:00:09.431, end time: 2023-06-09 17:00:12.447, timeout: 3000 ms, service: xxx.xxx.xxx
```
现在想改短一点 sessionTimeout 就只能修改 zookeeper 配置中的 maxSessionTimeout 或 tickTime 了吗
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[GitHub] [dubbo] niguibin commented on issue #12485: 关于 provider 的 sessionTimeout
Posted by "niguibin (via GitHub)" <gi...@apache.org>.
niguibin commented on issue #12485:
URL: https://github.com/apache/dubbo/issues/12485#issuecomment-1588480575
> May fixed in
这个 #9317 中的 CuratorZookeeperClient 应该是控制 /dubbo/xxx.xxx/providers 节点的，而 ZookeeperServiceDiscovery 中的 CuratorFramework 是控制 /services/xxx 节点的，这是两个客户端，我很疑惑，为什么在 CuratorZookeeperClient 中是设置了 sessiontimeout 的，在 ZookeeperServiceDiscovery 中没有设置 sessiontimeout。但是 consumer 端是只有在 /dubbo/xxx.xxx.providers/ 节点和 /services/xxx 节点都不存在时才认为该 provider 不存在了，所以这两个节点的 sessiontimeout 应该要保持一致才对
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[GitHub] [dubbo] AlbumenJ commented on issue #12485: 关于 provider 的 sessionTimeout
Posted by "AlbumenJ (via GitHub)" <gi...@apache.org>.
AlbumenJ commented on issue #12485:
URL: https://github.com/apache/dubbo/issues/12485#issuecomment-1587237045
May fixed in #9317
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