How to deal with Elasticsearch index delay

Question

Here\'s my scenario:

I have a page that contains a list of users. I create a new user through my web interface and save it to the server. The server indexes the docu

Answer 1

Here is a fragment of code which is what I did in my Angular application to cope with this. In the component:

async doNewEntrySave() {
    try {
      const resp = await this.client.createRequest(this.doc).toPromise();
      this.modeRefreshDelay = true;
      setTimeout(() => {
        this.modeRefreshDelay = false;
        this.refreshPage();
      }, 2500);
    } catch (err) {
      this.error.postError(err);
    }
  }

In the template:

  
Waiting for update ...

I understand this is a quick-and-dirty solution but it illustrates how the user experience should work. Obviously it breaks if the real-world latency turns out to be more than 2.5 seconds. A fancier version would loop until the new record showed up in the page delay (with a limit of course).

Unless you completely redesign ElasticSearch you will always have some latency between the successful index operation and the time when that document shows up in search results.