Bug 1081049 - OVIRT35 - [RFE] replace XML-RPC communication (engine-vdsm) with json-rpc based on bidirectional transport
Summary: OVIRT35 - [RFE] replace XML-RPC communication (engine-vdsm) with json-rpc bas...
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: oVirt
Classification: Retired
Component: ovirt-engine-core
Version: 3.5
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
: 3.5.0
Assignee: Piotr Kliczewski
QA Contact: Petr Beňas
URL:
Whiteboard: infra
: 1100243 (view as bug list)
Depends On:
Blocks: 1083763
TreeView+ depends on / blocked
 
Reported: 2014-03-26 14:52 UTC by Barak
Modified: 2016-02-10 19:34 UTC (History)
10 users (show)

Fixed In Version: ovirt-engine-3.5.0_beta
Clone Of:
: 1083763 (view as bug list)
Environment:
Last Closed: 2014-10-17 12:24:29 UTC
oVirt Team: Infra
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Bugzilla 1142639 0 unspecified CLOSED Feature page: Features/Design/JsonRpc needs to be updated 2021-02-22 00:41:40 UTC
oVirt gerrit 26150 0 master MERGED Stomp reactor for jsonrpc code. Never
oVirt gerrit 26300 0 master ABANDONED json-rpc: Protocol detection Never
oVirt gerrit 26783 0 master MERGED jsonrpc: Stomp changes in vdsbroker Never
oVirt gerrit 27188 0 None ABANDONED json-rpc: AMQP handler with detection Never
oVirt gerrit 27734 0 None ABANDONED Proton reactor for jsonrpc code. Never
oVirt gerrit 31229 0 ovirt-engine-3.5 MERGED jsonrpc: Protocol decision based on cluser compatibility version Never

Internal Links: 1142639

Description Barak 2014-03-26 14:52:07 UTC 
The current communication between engine and vdsm is done using XML-RPC, where the engine actually acts as client and each vdsm is the server.
This pauses a few issues that when it comes to scale effect drastically:
- XML is expensive to parse
- This mechanism forces the engine to poll each vdsm frequently for information


The intent for this phase is to:
- move to json-rpc (same API)
- change transport to a real bidirectional transport to enable vdsm->engine events in the future
Comment 1 Piotr Kliczewski 2014-05-23 12:22:39 UTC 
*** Bug 1100243 has been marked as a duplicate of this bug. ***
Comment 2 Petr Beňas 2014-08-14 11:17:26 UTC 
Jsonrpc can be selected when adding a host and despite of some minor bugs tracked separately it works.
Comment 3 Sandro Bonazzola 2014-10-17 12:24:29 UTC 
oVirt 3.5 has been released and should include the fix for this issue.
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