These days, I try to migrate data from mysql to postgres using pgloader. I encountered HEAP-EXHAUSTED-ERROR and Socket error.
For HEAP-EXHAUSTED-ERROR, I have tried to reduce the batch size and workers, but it didn't work.
For EINTR (Interrupted system call), I am not sure the root cause.
pgloader: Socket error in "connect": EINTR (Interrupted system call) and HEAP-EXHAUSTED-ERROR
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I have tried to build pgloader using Clozure CL, and it seems to work. Maybe the CCL offers a better Garbage Collector. see Heap exhausted You can also try the docker image:
This way works for both issues.