I've been thinking about process isolation (instead of using
ClassLoader's for isolation). Typically, smart proxy's are isolated in
their own ClassLoader, with their own copies of classes, however with
Maven, a lot more class sharing occurs. Since River uses codebase
annotations for identity, using maven codebase annotations will result
in proxy's from different services sharing identity.
A better way to provide for different identities coexisting on the same
node, would be to use subprocess jvm's for each Service's server
principal identity, to keep classes from different services in different
processes.
This way, each principal would have their own process & Maven namespace
for their proxy's.
Presently JERI only exports interfaces in reflection proxy's that
implement Remote, so I'd need an endpoint that can export all
interfaces, accross a local interprocess connection to allow remote
calls on smart proxy interfaces that aren't remote.
This also means that memory resource consumption of smart proxy's can be
controlled by the client and a smart proxy's process killed without
killing the client jvm.
Cheers,
Peter.
On 15/11/2016 5:50 PM, Dawid Loubser wrote:
As a very heavy Maven user, I wanted to say that this is great news.
This is encouraging indeed!
Dawid
On 15/11/2016 05:08, Peter wrote:
Some other news that might encourage participation, I've been working
on Dennis Reedy's script to modularise the codebase, I haven't run the
test suites against it and it isn't generating stubs yet, and I'll
need to modify the platform modules for the IoT effort after the
conversion is complete.
Here's the output of the River maven build:
Reactor Summary:
River-Internet Project ............................ SUCCESS [0.689s]
Module :: River Policy ............................ SUCCESS [8.395s]
Module :: River Resources ......................... SUCCESS [0.607s]
Module :: River Platform .......................... SUCCESS [23.521s]
Module :: River Service DL Library ................ SUCCESS [8.999s]
Module :: River Service Library ................... SUCCESS [8.014s]
Module :: River Service Starter ................... SUCCESS [3.930s]
Module :: River SharedGroup Destroy ............... SUCCESS [3.018s]
Module :: Outrigger ............................... SUCCESS [0.056s]
Module :: Outrigger Service Download classes ...... SUCCESS [2.416s]
Module :: Outrigger Service Implementation ........ SUCCESS [4.118s]
Module :: Outrigger Snaplogstore .................. SUCCESS [3.273s]
Module :: Lookup Service .......................... SUCCESS [0.048s]
Module :: Reggie Service Download classes ......... SUCCESS [3.966s]
Module :: Reggie Service Implementation ........... SUCCESS [3.621s]
Module :: Mahalo .................................. SUCCESS [0.436s]
Module :: Mahalo Service Download classes ......... SUCCESS [2.059s]
Module :: Mahalo Service Implementation ........... SUCCESS [4.175s]
Module :: Mercury the Event Mailbox ............... SUCCESS [0.497s]
Module :: Mercury Service Download classes ........ SUCCESS [3.622s]
Module :: Mercury Service Implementation .......... SUCCESS [3.562s]
Module :: Norm .................................... SUCCESS [0.013s]
Module :: Norm Service Download classes ........... SUCCESS [2.867s]
Module :: Norm Service Implementation ............. SUCCESS [6.390s]
Module :: Group ................................... SUCCESS [0.025s]
Module :: Mahalo Service Download classes ......... SUCCESS [2.877s]
Module :: Group Service Implementation ............ SUCCESS [2.037s]
Module :: Tools ................................... SUCCESS [0.485s]
Module :: Check ConfigurationFile ................. SUCCESS [2.720s]
Module :: Check serialversionUid .................. SUCCESS [2.129s]
Module :: ClassDep ................................ SUCCESS [4.157s]
Module :: Class Server ............................ SUCCESS [3.353s]
Module :: Compute message digest .................. SUCCESS [1.734s]
Module :: Compute httpmd codebase ................. SUCCESS [2.102s]
Module :: Environment Check ....................... SUCCESS [2.837s]
Module :: Jar wrapper ............................. SUCCESS [2.179s]
Module :: Preferred classes list generator ........ SUCCESS [2.495s]
Module :: Phoenix Activation ...................... SUCCESS [0.029s]
Module :: Phoenix Download ........................ SUCCESS [2.685s]
Module :: Phoenix ................................. SUCCESS [4.095s]
Module :: Phoenix Group ........................... SUCCESS [2.445s]
Module :: Phoenix Init ............................ SUCCESS [1.740s]
River Distribution ................................ SUCCESS [10.523s]
------------------------------------------------------------------------
BUILD SUCCESS
------------------------------------------------------------------------
Total time: 2:29.804s
Finished at: Mon Nov 14 22:22:31 EST 2016
Final Memory: 145M/247M
------------------------------------------------------------------------
