Gilad Chaplik has submitted this change and it was merged. Change subject: webadmin: Avoid duplicate server [Search] queries ...................................................................... webadmin: Avoid duplicate server [Search] queries While executing several queries in parallel, the UI gets stuck; There is a hard limitation of ~6 connections for http requests (for the same host name). We are getting a lot of performance issues that are related to it. The main reproducer to 'UI not responding' is re-sending a 'slow' query and run out of connections. For a large scale env, this can be a serious problem; Currently we support only search queries because it's easy to identify them; i.e., according to search string and sender, whereas other queries, are pretty hard to compare, because 'equals' isn't implemented in parameters classes. In the patch: When sending a second duplicate request from the same place (model, queryType and parameters), while the first request is waiting for response, we will postpone it till the first is finished. NOTE: we will postpone (save) only a single request, and avoid the others; e.g., when pressing 30 time on a key in the GUI the first one will be excuted and the others will pile up on the same place in the set. Change-Id: I483a1c449f1eb2e9820464dbaf0a686f90923bb6 Signed-off-by: Gilad Chaplik <gchaplik@redhat.com> --- M frontend/webadmin/modules/frontend/src/main/java/org/ovirt/engine/ui/frontend/Frontend.java 1 file changed, 121 insertions(+), 33 deletions(-) Approvals: Gilad Chaplik: Verified; Looks good to me, approved -- To view, visit http://gerrit.ovirt.org/9554 To unsubscribe, visit http://gerrit.ovirt.org/settings Gerrit-MessageType: merged Gerrit-Change-Id: I483a1c449f1eb2e9820464dbaf0a686f90923bb6 Gerrit-PatchSet: 8 Gerrit-Project: ovirt-engine Gerrit-Branch: master Gerrit-Owner: Gilad Chaplik <gchaplik@redhat.com> Gerrit-Reviewer: Alona Kaplan <alkaplan@redhat.com> Gerrit-Reviewer: Daniel Erez <derez@redhat.com> Gerrit-Reviewer: Einav Cohen <ecohen@redhat.com> Gerrit-Reviewer: Gilad Chaplik <gchaplik@redhat.com> Gerrit-Reviewer: Kanagaraj M <kmayilsa@redhat.com> Gerrit-Reviewer: Liron Aravot <laravot@redhat.com> Gerrit-Reviewer: Vojtech Szocs <vszocs@redhat.com> Gerrit-Reviewer: Yair Zaslavsky <yzaslavs@redhat.com>