I am getting an core.exception.InvalidMemoryOperationError@(0)

     auto recs = f  // Open for reading
                           .byLineCopy();
                           .array;  //Here is where is appears to be happening.

I have narrowed it down to the .array.  I am wondering if there is some common issue I may be experiencing or if there is a better solution?

Here is what I am overall trying to achieve.

     auto recs = f  // Open for reading
                           .byLineCopy;
                           .array();
                           .map!(a=> assocArray(zip(h1.fullHeader, splitter(a,','))))
                           .map!(a=>a.byKeyValue()
                                    .filter!(a=>h1.filteredHeader.canFind(a.key)));

        foreach(item;recs){
                           auto item = Json.emptyObject;
                           each!((k)=> item[k.key] = k.value)(item);
                           insert(item, dateIndex); //ElasticSearch
        }

Also any suggestions on the code are greatly appreciated :)

Where is your code found? InvalidMemoryOperationError usually props up in code running from a destructor.

If the call to .array isn't in a destructor, it might also be that the array is triggering a GC cycle... which calls something in a destructor.

Since that's so commonly the cause I encourage you to audit your classes and make sure none of them try to new any memory in their ~this() {}...

On Monday, 22 June 2015 at 20:30:40 UTC, David DeWitt wrote:
> I am getting an core.exception.InvalidMemoryOperationError@(0)
>
>      auto recs = f  // Open for reading
>                            .byLineCopy();
>                            .array;  //Here is where is appears to be happening.
>
> I have narrowed it down to the .array.  I am wondering if there is some common issue I may be experiencing or if there is a better solution?
>

You may be hitting issue 14005/14578 with the underlying issue 13856.

https://issues.dlang.org/show_bug.cgi?id=14005
https://issues.dlang.org/show_bug.cgi?id=14578
https://issues.dlang.org/show_bug.cgi?id=13856

You can try using the current development version of phobos from git. I think the InvalidMemoryOperationError shouldn't happen with that anymore. If it still happens with git head phobos, it's probably not 14005/14578.

Alternatively, you can use std.stdio.readln directly, but be aware of issue 13856.

On Monday, 22 June 2015 at 20:30:40 UTC, David DeWitt wrote:
> I am getting an core.exception.InvalidMemoryOperationError@(0)
>
>      auto recs = f  // Open for reading
>                            .byLineCopy();
>                            .array;  //Here is where is appears to be happening.
>
> [...]

I have had a chance to try the new phobos.  Dealing with the errors related to:
http://forum.dlang.org/thread/mm1fdo$q5u$1@digitalmars.com in debian.

Gonna mess with it some more when I have a chance.

On Tuesday, 23 June 2015 at 18:49:59 UTC, David DeWitt wrote:
> On Monday, 22 June 2015 at 20:30:40 UTC, David DeWitt wrote:
>> I am getting an core.exception.InvalidMemoryOperationError@(0)
>>
>>      auto recs = f  // Open for reading
>>                            .byLineCopy();
>>                            .array;  //Here is where is appears to be happening.
>>
>> [...]
>
> I have had a chance to try the new phobos.  Dealing with the errors related to:
> http://forum.dlang.org/thread/mm1fdo$q5u$1@digitalmars.com in debian.
>
> Gonna mess with it some more when I have a chance.

I pulled down the latest version on Github and everything ran fine.