ORA-02396: exceeded maximum idle time, please connect again

I was doing a schema import last night, over a database link. Lack of sleep had set in and I was getting the following error

Processing object type SCHEMA_EXPORT/TABLE/INDEX/INDEX 
ORA-39126: Worker unexpected fatal error in KUPW$WORKER.FETCH_XML_OBJECTS [INDEX:"SCHEMA_OWNER"."TABLE2"] 
ORA-02396: exceeded maximum idle time, please connect again 

ORA-06512: at "SYS.DBMS_SYS_ERROR", line 95 
ORA-06512: at "SYS.KUPW$WORKER", line 11259 

----- PL/SQL Call Stack ----- 
object line object 
handle number name 
0x2156ad620 27116 package body SYS.KUPW$WORKER 
0x2156ad620 11286 package body SYS.KUPW$WORKER 
0x2156ad620 13515 package body SYS.KUPW$WORKER 
0x2156ad620 3173 package body SYS.KUPW$WORKER 
0x2156ad620 12035 package body SYS.KUPW$WORKER 
0x2156ad620 2081 package body SYS.KUPW$WORKER 
0x20d5f9bb0 2 anonymous block 

KUPP$PROC.CHANGE_USER 
KUPP$PROC.CHANGE_USER 
NONE connected to AAR00287 
DBMS_LOB.TRIM 
DBMS_LOB.TRIM 
DBMS_LOB.TRIM 
DBMS_LOB.TRIM 
DBMS_METADATA.FETCH_XML_CLOB 
DBMS_METADATA.FETCH_XML_CLOB 
In procedure DETERMINE_FATAL_ERROR with ORA-02396: exceeded maximum idle time, please connect again 

Now if you aren’t tired this should be a pretty obvious fix, the idle_time value on the remote server was set to 60 and was disconnecting me during the index build section of the import. I altered the profile to give my user/profile unlimited idle_time. Problem solve, import complete.