c# - EntityFramework The wait operation timed out on long running task -


i'm using ef5 migrate data 1 database another. use sql need other functionality (like creating users in membershipprovider) , hoping in ef. i'm migrating 100k rows , using so:

        using (var connection = new sqlconnection(connectionstring))         {              using(var command = new sqlcommand(commandtext, connection))             {                 connection.open();                 using (sqldatareader reader = command.executereader())                 {                     while (reader.read())                     {                         var employer = new employer();                          employer.ean = reader["ean"].tostring();                          employer.name = getstring(reader["empname"]);                          employer.taxmailingaddress = new address                         {                             streetaddress = getstring(reader["street"]),                             city = getstring(reader["city"]),                             state = getstring(reader["usstate"]),                             zipcode = getstring(reader["zip"])                         };                          employer.taxmailingaddress.saveorupdate();                         employer.saveorupdate(); // timeout happens                          string dba = getstring(reader["dba"]);                         if (!string.isnullorwhitespace(dba))                         {                             employer.adddba(new employerdba                              {                                 name = dba                             });                         }                          string email = getstring(reader["email"]);                         if (!string.isnullorwhitespace(email))                         {                             var user = createnewuser(email);                              if (user != null)                             {                                 user.addauthorizedemployer(employer);                                  user.addrole(employerrole.admin, employer, true);                             }                         }                     }                 }             }         }

my saveorupdate method pretty straight forward:

    public void saveorupdate()     {         using (var db = new mycontext())         {             if (db.employers.firstordefault(x => x.ean == ean && x.id != id) != null)                 throw new exception("an employer ean has been registered.");              var employer = new employer();              if (id == 0)             {                 db.employers.add(employer);                  employer.createdby = statics.getcurrentusername();                 employer.datecreated = datetime.now;             }             else             {                 employer = db.employers.firstordefault(x => x.id == id);                  employer.modifiedby = statics.getcurrentusername();                 employer.datemodified = datetime.now;             }              employer.ean = ean;             employer.name = name;             if (taxmailingaddress != null) employer.taxmailingaddress = db.addresses.firstordefault(x => x.id == taxmailingaddress.id);             if (singleseparationstatementaddress != null) employer.singleseparationstatementaddress = db.addresses                                     .firstordefault(x => x.id == singleseparationstatementaddress.id);              db.savechanges();              id = employer.id;         }     }

the task should take 2.5 hours complete. however, after running many thousands of rows, sometime 80k, few 7k, "the wait operation timed out" exception, on employer.saveorupdate();. have how close employer.taxmailingaddress.saveorupdate();? there "wait transaction complete" deal? perhaps make sure connection valid , if not try recreating or something? help.

the problem ended being initial database connection being used connect other database, getting data import, timing out. ended looping through of reader.read() statements , putting array. looped through array process , save data new database.


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