Hi Bengt, I'm at the airport (back from ApacheCon and W-JAX). I will take a look beginning of this afternoon.
Regards JB -- Jean-Baptiste Onofré [email protected] http://blog.nanthrax.net Talend - http://wwx.talend.com ----- Reply message ----- From: "Bengt Rodehav" <[email protected]> To: <[email protected]> Subject: Problems with ipojo in Karaf 2.3.0 Date: Fri, Nov 9, 2012 8:59 am JB, I will have to release our product very shortly. Do you think the workaround I'm currently using is "safe" for production or should I wait for your analysis? As far as I've tested it seems to work perfectly but I'm a bit worried about the underlying cause to this. /Bengt 2012/11/8 Bengt Rodehav <[email protected]> I just tried doing the same thing using Karaf 2.2.9, that is:Add an ipojo featureAdd the jpa and ipojo feature to featuresBootThis works without any problems. Of course, Karaf 2.2.9 uses org.apache.aries.util version 0.3.1 while Karaf 2.3.0 uses version 1.0.0. One of my main reasons for upgrading Karaf is in fact to upgrade Aries to a modern version. Don't know if this means that the problem lies within Aries or not. I still think that there is something fishy going on in Karaf. /Bengt 2012/11/8 Bengt Rodehav <[email protected]> Hello JB, Just wanted to check whether you've managed to recreate this and possibly explain what is happening. I'm wondering if there might be a problem with the implementation of the feature functionality which is why I don't want this in production yet (but I have to upgrade our production servers very soon). My reasoning is as follows: If the org.apache.aries.util bundle is already installed (and possibly active - don't know what the timing looks like) then installing a feature containing the org.apache.aries.util bundle should be a noop - right? But apparently the feature functionality does something regarding this bundle anyway. What should it do? Why should it do anything? /Bengt 2012/11/7 Bengt Rodehav <[email protected]> The workaround I'm currently using is to modify the enterprise-2.3.0-features.xml so that the jpa feature and the jndi feature no longer include the org.apache.aries.util bundle. Then everything seems to work (the org.apache.aries.util bundle is installed anyway thanks to startup.properties). However, I still don't feel comfortable putting this into production until I know what is happening. /Bengt 2012/11/5 Bengt Rodehav <[email protected]> Thanks a lot JB, /Bengt 2012/11/5 Jean-Baptiste Onofré <[email protected]> Hi Bengt, thanks for the detailed explanation. I will try to create a use case (without iPojo) to reproduce the issue (in combination with jpa feature). Regards JB On 11/05/2012 04:59 PM, Bengt Rodehav wrote: Some more findings... It seems like the Karaf Shell (org.apache.karaf.shell.console) bundle uses packages from aries (e g org.apache.aries.blueprint) which in turn uses packages from org.apache.aries.util. Could it be that when the org.apache.aries.util bundle is installed as part of the jpa feature, it somehow causes a refresh which causes dependent bundles (such as the org.apache.karaf.shell.console bundle) to be rewired. This in turn would probably reinitialize the console (I'm probably using the wrong terminology here but you know what I mean...). If that is the case, then it seems highly undesirable to include the org.apache.aries.util bundle in the jpa feature. I don't have an explanation as to why this problem only occurs together with iPojo but I assume that it somehow triggers the refresh. /Bengt 2012/11/5 Bengt Rodehav <[email protected] <mailto:[email protected]>> BTW, I tried using iPojo 1.6.8 instead to see if this is a problem introduced in later iPojo versions. I do, however, get the same problems using iPojo 1.6.8 which implies that it's not a newly introduced iPojo problem. /Bengt 2012/11/5 Bengt Rodehav <[email protected] <mailto:[email protected]>> I'm trying to upgrade my custom Karaf distribution to Karaf 2.3.0 but have ran into some problems. It seems there is some kind of conflict between ipojo 1.8.2 and the jpa feature - specifically the org.apache.aries.util bundle in the jpa feature. I install ipojo as a feature (not listed in startup.properties). But when I do this I get the following exception: /2012-11-05 15:51:20,251 | INFO | l Console Thread | Console | araf.shell.console.jline.Console 199 | 14 - org.apache.karaf.shell.console - 2.3.0 | Exception caught while executing command/ /java.lang.UnsupportedOperationException: read() with timeout cannot be called as non-blocking operation is disabled/ /at jline.internal.NonBlockingInputStream.read(NonBlockingInputStream.java:134)[14:org.apache.karaf.shell.console:2.3.0]/ /at jline.internal.NonBlockingInputStream.read(NonBlockingInputStream.java:246)[14:org.apache.karaf.shell.console:2.3.0]/ /at jline.internal.InputStreamReader.read(InputStreamReader.java:259)[14:org.apache.karaf.shell.console:2.3.0]/ /at jline.internal.InputStreamReader.read(InputStreamReader.java:196)[14:org.apache.karaf.shell.console:2.3.0]/ /at jline.console.ConsoleReader.readCharacter(ConsoleReader.java:1974)[14:org.apache.karaf.shell.console:2.3.0]/ /at jline.console.ConsoleReader.readLine(ConsoleReader.java:2174)[14:org.apache.karaf.shell.console:2.3.0]/ /at jline.console.ConsoleReader.readLine(ConsoleReader.java:2098)[14:org.apache.karaf.shell.console:2.3.0]/ /at org.apache.karaf.shell.console.jline.Console.readAndParseCommand(Console.java:235)[14:org.apache.karaf.shell.console:2.3.0]/ /at org.apache.karaf.shell.console.jline.Console.run(Console.java:171)[14:org.apache.karaf.shell.console:2.3.0]/ /at java.lang.Thread.run(Thread.java:662)[:1.6.0_32]/ Then it seems like Karaf (or Felix) restarts somehow since I get another "Karaf" logo in the console. The issue can be reproduced quite easily: 1. Download a fresh Karaf 2.3.0 2. Create a new feature containing the ipojo bundle. The easiest way is probably to add the following lines to the enterprise-2.3.0-features.xml in the "system" folder: <feature name="ipojo"> <bundle>mvn:org.apache.felix/org.apache.felix.ipojo/1.8.2</bundle> </feature> 3. Edit the etc/org.apache.karaf.features.cfg as follows: featuresBoot=config,ssh,management,kar,jpa,ipojo Some other obeservations: - If I switch the jpa and the ipojo features I get other exceptions. - The org.apache.aries.util bundle is part of the jpa feature (start level 30) but it is also present in startup.properties (start level 20). - If I remove the org.apache.aries.util bundle from the jpa feature then things seem to work. - If I install ipojo by using startup.properties instead of using a feature then things seem to work. The last two observations might imply that org.apache.aries.util and ipojo must be resolved at the same time (start levels do not make any difference). I'm not sure if this post belongs here or in Felix mailing list. However, since it seems to involve the enterprise features that is part of Karaf I try here first. It's very confusing. Although I have found a couple of work-arounds I don't feel comfortable using them since I don't know what is happening. Does anyone have a clue? /Bengt -- Jean-Baptiste Onofré [email protected] http://blog.nanthrax.net Talend - http://www.talend.com
