joecwu / blockmed-eth-event-listener Goto Github PK

The process of our listener will be killed every 60+ minutes.
We installed it as a Linux system service and setup to auto restart.
This issue should be fixed in the future, otherwise, we might lose some events during the process restart period.

Refer to this article for more detail.

Currently, we use term_aggs in our search template to calculate purchase count in runtime.
If all data stored in only one node, there is no problem.
So we can do it for now.
If data stores cross multi-nodes and data size is getting bigger, we have to resolve this problem.

There is a solution, we add a new field in existing blockmed-trans- index and store total purchase count. When event_watcher got PurchaseTxRecord event, we update this field to +1.
Then we don't need term aggs to count this purchase count and a simple query is all we need.