Problem Scan Operations (Read) in Parallel

[Mazen Hajri]

Dear All,

 

I'm facing a problem when trying to perform NDB read scan operations in
parallel. The execution of the program is aborted, and one of the following
message gets printed:

 

.         pollCompleted error 0

.         pollCompleted error 2

 

However, the code is executed correctly when running the scan operations
sequentially (i.e. send/poll for only one operation at a time). I'm using
the async API (batching the send/poll). Any idea what might be the problem
here? I'd really appreciate your help.

 

Kind regards,
Mazen Abdulaziz