Why? loading processes fail with error 287 - cannot insert NULL or update to NULL
In indexserver alert trace you see that table update failed with function TRexAPI::TableUpdate::checkColumnConsistency found in call stack.
Please follow the steps:
Upgarde to Rev71.
Current workaround:
Please set the following parameter in indexserver.ini:
[indexing]
max_chunk_size_for_update = 5000000
This increases the chunk threshold to 5000000. After setting the parameter the sql plan of the query had to be invalidated from sql plan cache. select plan_id from m_sql_plan_cache where to_varchar(statement_string) like 'UPDATE <name of table where update failed>%' ALTER SYSTEM RECOMPILE SQL PLAN CACHE ENTRY '<plan_id>'
Read Here for More SAP HANA Tutorials.