slotBuffer is all ZEROs for a specific key

[muthumadi]

We recently ran into strange issue where a StoreReader.get(Object key) given the key returned a null, but when we do StoreReader.iterable() we could see the key and the value printer correctly.

This happened only for one particular key. Debugging in the paldb library and see that the slotBuffer is loaded with ZERO’s for that particular key and offset results in a ZERO.

I have attached screenshot of the debug point. I am unable to re-produce this with the same key and dataset.

[muthumadi]

Can someone please tell me why the offset would be ZERO or why we have this check

            if (offset == 0L) {
                return null;
            }

This issue still continues to happen at various intervals and random keys. I am unable to even re-produce it.

As I mentioned in the original post, if I use the StoreReader.iterable() I could see the key and the value correctly from the same paldb file.

Its only that StoreReader.get(Object key) returns a null. Any help with debugging this issue will be of great help.