rocketmq-4.2.0在Windows下启动broker报fastjson.JSONException错误问题解决

悠悠 2022-04-25 04:22 425阅读 0赞

# rocketmq-4.2.0在Windows下启动broker报fastjson.JSONException错误问题解决 #

**Windows安装好rocketmq后启动namesrv没问正则，但启动mqbroke后程序 连接不上，**

后经过config目录下logback\_broker.xml文件找到启动日志配置文件地址：C:\\Users\\lenovo\\logs\\rocketmqlogs

**查日志发现错误内容如下：**

ERROR main - load \[C:\\Users\\Administrator\\store\\config\\delayOffset.json\] failed, and try to load backup file

com.alibaba.fastjson.JSONException: syntax error, expect \{, actual EOF, pos 0  
at com.alibaba.fastjson.parser.deserializer.JavaBeanDeserializer.deserialze(JavaBeanDeserializer.java:343) ~\[fastjson-1.2.29.jar:na\]  
at com.alibaba.fastjson.parser.deserializer.JavaBeanDeserializer.parseRest(JavaBeanDeserializer.java:949) ~\[fastjson-1.2.29.jar:na\]  
at com.alibaba.fastjson.parser.deserializer.FastjsonASMDeserializer\_3\_DelayOffsetSerializeWrapper.deserialze(Unknown Source) ~\[na:na\]  
at com.alibaba.fastjson.parser.deserializer.JavaBeanDeserializer.deserialze(JavaBeanDeserializer.java:184) ~\[fastjson-1.2.29.jar:na\]  
at com.alibaba.fastjson.parser.DefaultJSONParser.parseObject(DefaultJSONParser.java:642) ~\[fastjson-1.2.29.jar:na\]  
at com.alibaba.fastjson.JSON.parseObject(JSON.java:350) ~\[fastjson-1.2.29.jar:na\]  
at com.alibaba.fastjson.JSON.parseObject(JSON.java:254) ~\[fastjson-1.2.29.jar:na\]  
at com.alibaba.fastjson.JSON.parseObject(JSON.java:467) ~\[fastjson-1.2.29.jar:na\]  
at org.apache.rocketmq.remoting.protocol.RemotingSerializable.fromJson(RemotingSerializable.java:43) ~\[rocketmq-remoting-4.2.0.jar:4.2.0\]  
at org.apache.rocketmq.store.schedule.ScheduleMessageService.decode(ScheduleMessageService.java:159) \[rocketmq-store-4.2.0.jar:4.2.0\]  
at org.apache.rocketmq.common.ConfigManager.load(ConfigManager.java:38) ~\[rocketmq-common-4.2.0.jar:4.2.0\]  
at org.apache.rocketmq.store.schedule.ScheduleMessageService.load(ScheduleMessageService.java:145) \[rocketmq-store-4.2.0.jar:4.2.0\]  
at org.apache.rocketmq.store.DefaultMessageStore.load(DefaultMessageStore.java:176) \[rocketmq-store-4.2.0.jar:4.2.0\]  
at org.apache.rocketmq.broker.BrokerController.initialize(BrokerController.java:223) \[rocketmq-broker-4.2.0.jar:4.2.0\]  
at org.apache.rocketmq.broker.BrokerStartup.createBrokerController(BrokerStartup.java:210) \[rocketmq-broker-4.2.0.jar:4.2.0\]

at org.apache.rocketmq.broker.BrokerStartup.main(BrokerStartup.java:56) \[rocketmq-broker-4.2.0.jar:4.2.0\]

**经发现C:\\Users\\\[操作系统用户名\]\\store\\config下的topics.json文件内容为空。**

解决办法如下：

找到C:\\Users\\\[操作系统用户名\]\\store\\config下的topics.json文件，填写如下内容即可：

“delayLevelTable”：\{\}

对已经使用了一段时间的rocketmq其他文件会存储到响应的消息信息，单独修改某个文件可能会引起其他文件报错，

若不怕消息丢失彻底的解决办法是直接删掉C:\\Users\\lenovo\\store下的所有文件重启后会重新生成全新的空文件。