pg_dump fatal error

Hi guys

I'm doing a copy (pg_dump) from a slave server to a test server.
The DB size is 1,7 TB, and I get the error at 1,4 TB.

Command:

> ssh postgres(at)servidorslave01 "/usr/pgsql-9.2/bin/pg_dump
> --exclude-table-data='junk.*' --format=custom db_live"
> | /usr/pgsql-9.2/bin/pg_restore --dbname=uat_temp --exit-on-error

Error:

> |postgres|pg_restore| CONTEXT: COPY ja_feedlog, line 1
> STATEMENT: COPY ja_feedlog (id, clientid, mobiuserid, customerid,
> invoiceid, description, gtime, jobid, log_type, serialised_data,
> push_status, requestorid, the_geom, admin_read, visitid) FROM stdin;

LOG: could not send data to client: Broken pipe
> FATAL: connection to client lost

What can cause that kind of error? I've tried more than once, actually.

Thanks
Lucas