我们已经运行 SonarQube 5.6.4 有一段时间了.然后我们突然观察到后台任务的队列在增加.在日志中，我们看到这样的消息:
We have running SonarQube 5.6.4 for a while now. Then we observed suddenly that the queue of background tasks is increasing. In the logs we see messages like that:
2017.07.24 13:56:10 INFO [o.s.s.es.BulkIndexer] 0 requests processed (0 items/sec)
每分钟一个日志条目.
然后开始的其他任务失败了:
Other tasks started then are failing with:
org.elasticsearch.client.transport.NoNodeAvailableException: None of the configured nodes were available: [[sonar-1498219166409][3QkGfCI8RUSn6vapRi5SSg][a2d477fdfe7a][inet[/127.0.0.1:9001]
我不知道如何找到导致错误的任何东西.配置没有任何变化.
I do not know how to find anything which is causing the error. Nothing has changed in the configuration.
我重新启动了服务器，但没有任何改变.
I restarted the server but nothing changed.
对我来说值得注意的是弹性搜索似乎打开的端口数量:
What is remarkable for me is the number of ports which seems to be opened by elastic search:
tcp 0 0 localhost:etlservicemgr localhost:53058 ESTABLISHED 24/java
tcp 0 0 localhost:etlservicemgr localhost:53070 ESTABLISHED 24/java
tcp 0 0 localhost:53058 localhost:etlservicemgr ESTABLISHED 220/java
tcp 0 0 localhost:etlservicemgr localhost:52934 ESTABLISHED 24/java
tcp 0 0 a2d477fdfe7a:49760 sonar-db.netwo:postgres ESTABLISHED 220/java
tcp 0 0 localhost:etlservicemgr localhost:52846 ESTABLISHED 24/java
tcp 0 0 localhost:52924 localhost:etlservicemgr ESTABLISHED 119/java
tcp 0 0 localhost:52928 localhost:etlservicemgr ESTABLISHED 119/java
tcp 0 0 localhost:53076 localhost:etlservicemgr ESTABLISHED 220/java
tcp 0 0 localhost:etlservicemgr localhost:52866 ESTABLISHED 24/java
tcp 0 0 localhost:53074 localhost:etlservicemgr ESTABLISHED 220/java
tcp 0 0 localhost:etlservicemgr localhost:52922 ESTABLISHED 24/java
(真的是五倍)
有人知道如何找到问题的原因吗?
Has anyone an idea how to find the cause of the problem?
sonarqube.properties 具有默认值.唯一的变化是:
sonarqube.properties has default values. Only changes are:
sonar.security.realm=LDAP
sonar.security.savePassword=true
sonar.security.updateUserAttributes=true
sonar.authenticator.downcase=true
sonar.authenticator.createUsers=true
以及 LDAP 配置.
and the LDAP configuration.
虽然我仍然不明白为什么 taks 被卡住并且没有抛出异常，但我们的问题似乎通过将 worker 的堆空间从 500MB 增加到 1GB 来解决:
While I still not understand why the taks was stuck and did not throw an exception our problem seems to be solved by increasing the heapspace for the worker from 500MB to 1GB:
sonar.ce.javaOpts=-Xmx1024m -Xms128m -XX:+HeapDumpOnOutOfMemoryError -Djava.net.preferIPv4Stack=true
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