mongodb的一个恶心问题

fivesmallq 写道

kk,求教个mongodb的问题..
2011-6-7 10:15:06 com.mongodb.DBTCPConnector$MyPort error
严重: MyPort.error called
java.lang.RuntimeException: bad string size: 3890158

 

记得string有4M的limit，这个3.8M、不到4M啊。

搜了搜~

 

This limit spawns unusal problem: you can write 3.5Mb string, but
can't read it. And docs says nothing about it.

 

 int size = readInt();
  if ( size < 0 || size > ( 3 * 1024 * 1024 ) )
    throw new RuntimeException( "bad string size: " + size );

 

 String 不能大于3M，写入时没问题。读出来的时候，bson decoder时做的检查，才报这个错。

官方建议：

You can file a jira case if you think that should be changed.
Though I'm not sure want to support 4M strings.
If you need a huge field, you probably should use a binary type.