Sharded Database migration and merge issues https://liferay.dev/c/message_boards/find_thread?p_l_id=119785294&threadId=112617161 2026-04-07T16:02:36Z 2026-04-07T16:02:36Z Alberto Chaparro https://liferay.dev/c/message_boards/find_message?p_l_id=119785294&messageId=112629121 2019-03-07T16:33:56Z 2019-03-07T16:33:56Z

If the official solution is not suitable for your customer, you can follow this other approach which merges all shards in one database schema:<br /><a href="https://community.liferay.com/blogs/-/blogs/how-to-upgrade-your-shared-environment-to-liferay-7-x">https://community.liferay.com/blogs/-/blogs/how-to-upgrade-your-shared-environment-to-liferay-7-x</a><br /><br />Let me know your thoughts about it.<br /><br />​​​​​​​Thanks.

Alberto Chaparro 2019-03-07T16:33:56Z Pooja Joshi https://liferay.dev/c/message_boards/find_message?p_l_id=119785294&messageId=112617160 2019-03-07T09:54:18Z 2019-03-07T09:54:18Z

Hi All,<br /><br />We have a client who has around 15 shards and one default DB running in Liferay 6.2. Now while doing upgradation to Liferay DXP we followed steps mentioned in below link :<br /><br />https://dev.liferay.com/discover/deployment/-/knowledge_base/7-0/upgrading-sharded-environment<br /><br />From above link we are able to successfully migrate all shards and Default DB but it did not merge the shards data in default DB. As we have Liferay enterprise license we raised the same issue to  Liferay. But Liferay recommends that DB upgrade process does not merge data and that has to be done manually. <br /><br />Has anyone done similar thing ever? Need help.

Pooja Joshi 2019-03-07T09:54:18Z