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Posted to commits@servicecomb.apache.org by GitBox <gi...@apache.org> on 2021/06/24 06:56:45 UTC
[GitHub] [servicecomb-java-chassis] G-Jay-R opened a new issue #2431: ServiceCombLoadBalancerStats：LoadBalancerStatsTimer error.空指针异常
G-Jay-R opened a new issue #2431:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2431
platform.log日志中偶现空指针异常，请问引发的原因是什么，对业务会有什么影响吗？
```
2021-06-18 08:59:44,539 INFO [][][LoadBalancerStatsTimer][servicecomb.loadbalance.ServiceCombLoadBalancerStats$3 174] ping mark server 873457e8ce9811eb80960255ac1ee072 failure.
2021-06-18 08:59:44,539 WARN [][][LoadBalancerStatsTimer][servicecomb.loadbalance.ServiceCombLoadBalancerStats$3 180] LoadBalancerStatsTimer error.
java.lang.NullPointerException: null
at org.apache.servicecomb.loadbalance.ServiceCombLoadBalancerStats$3.run(ServiceCombLoadBalancerStats.java:172) ~[handler-loadbalance-1.3.0.B012.jar:1.3.0.B012]
at java.util.TimerThread.mainLoop(Timer.java:555) ~[?:1.8.0_262]
at java.util.TimerThread.run(Timer.java:505) ~[?:1.8.0_262]
2021-06-18 08:59:46,835 ERROR [][][vert.x-eventloop-thread-2][client.http.RestClientInvocation 104] Failed to send request, local:not connected, remote:/192.168.0.58:8443.
```
源码：
```
@Override
public void run() {
try {
Map<ServiceCombServer, ServiceCombServerStats> allServers = pingView;
Iterator<ServiceCombServer> instances = allServers.keySet().iterator();
while (instances.hasNext()) {
ServiceCombServer server = instances.next();
ServiceCombServerStats stats = allServers.get(server);
if ((System.currentTimeMillis() - stats.getLastVisitTime() > timerIntervalInMilis) && !ping
.ping(server.getInstance())) {
LOGGER.info("ping mark server {} failure.", server.getInstance().getInstanceId());
stats.markFailure();
}
}
serverStatsCache.cleanUp();
} catch (Throwable e) {
LOGGER.warn("LoadBalancerStatsTimer error.", e);
}
}
```
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[GitHub] [servicecomb-java-chassis] liubao68 commented on issue #2431: ServiceCombLoadBalancerStats：LoadBalancerStatsTimer error.空指针异常
Posted by GitBox <gi...@apache.org>.
liubao68 commented on issue #2431:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2431#issuecomment-867596219
这个异常对功能无影响。 你的版本太老了。 新代码看起来已经改了实现，参考 [releases](https://github.com/apache/servicecomb-java-chassis/releases）
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[GitHub] [servicecomb-java-chassis] liubao68 edited a comment on issue #2431: ServiceCombLoadBalancerStats：LoadBalancerStatsTimer error.空指针异常
Posted by GitBox <gi...@apache.org>.
liubao68 edited a comment on issue #2431:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2431#issuecomment-867596219
这个异常对功能无影响。 你的版本太老了。 新代码看起来已经改了实现，参考 [releases](https://github.com/apache/servicecomb-java-chassis/releases）
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