Hello Christopher,
On 03.06.19 23:13, Christopher Schultz wrote:
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Ralph,
On 6/2/19 16:32, Ralph Soika wrote:
The whole system is highly transactional as it runs on Java EE with
JPA and Session EJBs.
And you write-through from your application -> RDBMS -> Lucene/Solr?
How are you handling commits (both soft and hard) and re-opening the
index?
we use "Change Data Capture" events which we write during a transaction
into the RDBMS.
The Lucene Service consumes this event log entries async. E.g. if a
search request occurs. So we have the guarantee the the search result
contains only commited data. This works great and is fast enough
because in the worst case only the first search request will be delayed
with the small amount of updating new entries from another completed
transaction.
===
Raph
