[image: Imagem PNG] Screen Shot 2017-08-08 at 2.42.55 PM.png <https://drive.google.com/a/ubee.in/file/d/0B7u1tjyaPWJQeVVtbFIzcS11eWc/view?usp=drivesdk>
I am sending the image one more time, hosted in google drive. https://drive.google.com/a/ubee.in/file/d/0B7u1tjyaPWJQeVVtbFIzcS11eWc/view?usp=drivesdk Edgar, did you find any solution to speed up webserver? Em ter, 8 de ago de 2017 às 16:04, Edgar Rodriguez <[email protected]> escreveu: > I've been profiling the web UI for the last few days and I think I've been > able to identify some of the issues. I've seen similar response times from > the webserver. > A couple of things that I found specifically for the task instance view > are: > 1. Page sizes on views are usually too large, and all HTML rendering is > done server side, flask_admin introduces some latency rendering the > templates for 500 TIs at a time in the TaskInstanceModelView, see [ > AIRFLOW-1483 <https://issues.apache.org/jira/browse/AIRFLOW-1483>] > 2. Using unindexed column as default for ordering (required for paging), > triggering a sort on TI requests, e.g. TaskInstanceModelView uses `job_id` > as default sort column, but there's no index for that, see [AIRFLOW-1495 > <https://issues.apache.org/jira/browse/AIRFLOW-1495>] > > Cheers, > Edgar > > On Tue, Aug 8, 2017 at 11:56 AM, Victor Monteiro <[email protected]> > wrote: > > > Sorry, I am sending again. > > > > Also, it is always between 6s and 3s. > > > > > > Em ter, 8 de ago de 2017 às 15:21, Ash Berlin-Taylor < > > [email protected]> escreveu: > > > >> (Your screenshot didn't come through for me, possibly because the list > >> stripped it? That said:) > >> > >> Is it always 6 seconds, or after making a few requests, enough so that > >> each worker stands a chance to have loaded the app any deps does it > settle > >> down? > >> > >> i.e. the problem might just be that of warm-up. > >> > >> -ash > >> > On 8 Aug 2017, at 18:52, Victor Monteiro <[email protected]> > >> wrote: > >> > > >> > Hi everyone. > >> > > >> > The problem is very straightforward. When doing a request to airflow > >> webserver, it is taking too much time to send the first byte. > >> > > >> > > >> > > >> > As you can see in the picture, it took 6 seconds to send the first > >> byte. I already investigated the connection with the database and it > took > >> 36ms to list all task instances. So, I am starting to think there is a > >> problem with airflow webserver or my deployment. > >> > > >> > To give you more details about deployment and configurations: > >> > web_server_worker_timeout = 120 > >> > workers = 4 > >> > sql_alchemy_pool_size = 5 > >> > sql_alchemy_pool_recycle = 3600 > >> > AWS RDS postgres > >> > AWS m4.large > >> > Does anyone know what can be causing this problem? > >> > > >> > Thank you :D > >> > > >> > >> >
