2 lovezhou1990 lovezhou1990 于 2016.01.22 09:35 提问

dubbo Can not lock the registry cache file

使用dubbo 出现以下异常 要怎么处理诶;
2016-01-22 09:27:06 WARN [com.alibaba.dubbo.registry.support.AbstractRegistry.doSaveProperties(AbstractRegistry.java:221)] - < [DUBBO] Failed to save registry store file, cause: Can not lock the registry cache file C:\Users\Administrator.dubbo\dubbo-registry-127.0.0.1.cache, ignore and retry later, maybe multi java process use the file, please config: dubbo.registry.file=xxx.properties, dubbo version: 2.5.3, current host: 127.0.0.1>
java.io.IOException: Can not lock the registry cache file C:\Users\Administrator.dubbo\dubbo-registry-127.0.0.1.cache, ignore and retry later, maybe multi java process use the file, please config: dubbo.registry.file=xxx.properties
at com.alibaba.dubbo.registry.support.AbstractRegistry.doSaveProperties(AbstractRegistry.java:193)
at com.alibaba.dubbo.registry.support.AbstractRegistry$SaveProperties.run(AbstractRegistry.java:150)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
2016-01-22 09:27:06 WARN [com.alibaba.dubbo.registry.support.AbstractRegistry.doSaveProperties(AbstractRegistry.java:221)] - < [DUBBO] Failed to save registry store file, cause: Can not lock the registry cache file C:\Users\Administrator.dubbo\dubbo-registry-127.0.0.1.cache, ignore and retry later, maybe multi java process use the file, please config: dubbo.registry.file=xxx.properties, dubbo version: 2.5.3, current host: 127.0.0.1>
java.io.IOException: Can not lock the registry cache file C:\Users\Administrator.dubbo\dubbo-registry-127.0.0.1.cache, ignore and retry later, maybe multi java process use the file, please config: dubbo.registry.file=xxx.properties
at com.alibaba.dubbo.registry.support.AbstractRegistry.doSaveProperties(AbstractRegistry.java:193)
at com.alibaba.dubbo.registry.support.AbstractRegistry$SaveProperties.run(AbstractRegistry.java:150)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)

2个回答

aq23es
aq23es   2016.01.22 09:47

当本地同时启动服务端和客户端的时候就可能产生这个问题。
解决方案

Dubbo通过注册中心发现服务,发现的服务Dubbo同时也会保存到本地缓存一份,缓存的好处有很多,比如不需要每次使用的时候都通过注册中心获取,注册中心不可用了,不影响消费端的调用,因为本地缓存了一份服务提供者列表。Dubbo本地缓存默认采用的文件,会根据注册中心自动在当前用户目录下生成一个缓存文件,类似/home/newad/.dubbo/dubbo-registry-*.*.*.*.cache,星号表示注册中心的IP地址,当同一台机器上同时启动多个进程,就会出现多个进程争夺此文件的写入权限,觖此问题的方法也很简单,日志里面都说了重新配置一下这个缓存文件就。

主要在启动脚本里面添加配置: -Ddubbo.registry.file=C:\Users\dell.dubbo\dubbo-registry-192.168.1.62-junit.cache 文件名自己配置一个 -Ddubbo.registry.file=C:\Users\dell.dubbo\dubbo-registry-192.168.1.62-junit.cache

enpterexpress
enpterexpress   2016.01.22 09:40
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