How can I check that? I have not been getting the error lately and it seems these messages are no longer in my openmeetings.log.
On 2012.13.12, at 11:42, Maxim Solodovnik wrote: > Can you please doublecheck if it brake something for you or not? > In my case this exception was triggered by one of our timer tasks and there > were no errors/sideeffects (like nothing to fix :) ) > > > On Thu, Dec 13, 2012 at 4:22 PM, Mikael Kurula <alcar...@gmail.com> wrote: > Aha, very interesting that you now got this problem too. I didn't check if I > could log in again or not, but I do think it broke something in my situation. > Namely, I was recording a session, but when I pushed the stop recording > button, the video was not processed and it didn't show up in the list of > recordings. Instead I just got this error in the log. I am not 100% sure this > is how it all went, because at that time I was so new to OM and generally too > confused about everything to make any sharp observations. Thanks also for > filling in the version number in my e-mail to openjpa! > > > On 13 December 2012 07:33, Maxim Solodovnik <solomax...@gmail.com> wrote: > Hello Mikael, > > Tonight I perform following test: > 1) start OM in 5PM > 2) take a look at the console at 11 AM next day > Result: > org.apache.openjpa.persistence.PersistenceException: Communications link > failure > > The last packet successfully received from the server was 32,999,961 > milliseconds ago. The last packet sent successfull > y to the server was 2 milliseconds ago. > .....<stack trace stripped> > > Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: > Communications link failure > > The last packet successfully received from the server was 32,999,961 > milliseconds ago. The last packet sent successfull > y to the server was 2 milliseconds ago. > .....<stack trace stripped> > > > 3) I open the browser and was able to successfully connect to OM (login etc.) > I I guess above error can be treated as warning, since it doesn't break > anything. > > Is it your case? Or you are unable to login after such exception? > > > > On Thu, Dec 13, 2012 at 7:11 AM, Mikael Kurula <alcar...@gmail.com> wrote: > Dimitri, > > Thanks a lot for your friendly and constructive message! With your help I now > managed to install the libreoffice converter, so now I can import almost any > imaginable file format to the whiteboard, which is awesome. :) (The > alternative command didn't find Oracle's java on my server, but I changed the > symlink to java in /etc/alternatives by hand.) > > Unfortunately, unlike you (and perhaps most users it seems?), my situation is > not that everything "just works"; therefore I ask for help here. I also hope > that my questions indicate issues which might need to be addressed before > OpenMeetings can be accessible to the wide public; I suppose it is in the > interest of the developers to at least be aware of my problems. I'm very > surprised if nobody else has these problems. And it says on a page somewhere > that the OM project is grateful for any feedback; maybe my questions can be > regarded as feedback from a not-quite-so-technical user. > > I tried looking at the mailing list archive again, but I can't find a way to > search per author (or per keyword either for that matter), so I cannot find > your earlier posts. If you happen to know the answer to any of my questions > in this post, then I'd be most grateful: > > http://mail-archives.apache.org/mod_mbox/incubator-openmeetings-user/201212.mbox/%3C081FEEE9-ACDF-4E35-B8B4-CA0910711F88%40gmail.com%3E > > After I wrote that post, I have now found some suggestions for server > hardware for OM, but it's still not clear to me if the fact that my server is > a single 2 GHz cpu with only 2GB of RAM is connected to my problem 3 or not. > We have so far only been testing with one or two clients at once. > > I had a new look at the installation instructions for CentOS 6 and I > installed all the listed packages using yum. I didn't want to follow these > instructions earlier, because as I have understood, you shouldn't install > software from source outside of your package manager. In Ubuntu it's easy to > compile from source with the package manager but in CentOS it seems very > complicated; I have tried without success a few times. > > Desperate to get the recordings to work, I anyway tried installing > ffmpeg-0.10.6.tar.bz2 from source (I chose version 0.10.6 because it says in > the OpenMeetings installation instructions that OM is tested against ffmpeg > 10.3), since my version from the package manager was antique. Unfortunately, > that didn't improve anything. I didn't compile flvtools from source, because > the package maintainer's version was 0.9.1. > > Which version of flvtools and ffmpeg are you using if I may ask? What other > packages could cause me recording problems? And what are the CPU/RAM > specifications of your server? Which version of OM do you use and where did > you download it if you have a newer version than 2.0? I downloaded 2.0 from > the download page, since I got the impression that is the latest stable > version, but I'd be happy to test with newer versions in case there is hope > they'd work better for me. > > Very grateful for any help as usual, > Mikael > > > On 12 December 2012 15:56, Dimitri Yioulos <dyiou...@onpointfc.com> wrote: > Mikael, > > This response is more motivational than technical: > > I had no problem at all using OM/LibreOffice with Oracle's > Java. Both OpenJDK and Java 7 are installed on my machine, > but I've made Java 7 the "active" version using the > alternatives command. Likewise, using MySQL works, as does > recording. I'm sure you're searching the mailing list > archive for some guidance (you'll see plenty of shouts for > help from me :-) ). Also, I found that this how-to: > > http://code.google.com/p/openmeetings/wiki/InstallationCentOS5 > > is a good starting point for installing OM on CentOS (5 and > 6). > > What I've found (surprise, surprise) is that you do have to > tweak and test to get everything working just right. I > suppose these are the "rough edges" of the current OM > release. However, this release has come a long way from > earlier ones, which I tried in the way-back. I'm thinking > that future releases will be kick-a**. > > Keep at it; it's worth the effort! > > Dimitri > > > On Wednesday 12 December 2012 8:23:10 am Mikael Kurula > wrote: > > Hi! > > > > I'm also in the process of trying out if OpenMeetings is > > a possible alternative to Adobe Connect, with which I'm > > utterly fed up. > > > > The only problem I had with CentOS is that LibreOffice > > for CentOS 6 depends on OpenJDK whereas OpenMeetings need > > Oracle's Java. Somebody better att juggling with with yum > > probably can probably solve this easily (in which case > > I'd be grateful for help). > > > > Avoiding MySQL sounds like a reasonable idea to me, since > > I ran into this problem: > > https://issues.apache.org/jira/browse/OPENMEETINGS-488 > > (From what I understood this is very rare.) > > > > Right now my only showstopper issues are with recording, > > so I could suggest you check out if the recording > > capabilities are sufficient for your needs. In addition > > to the messages I've posted to the users list, I'm also > > having this problem: > > https://issues.apache.org/jira/browse/OPENMEETINGS-270 > > > > Otherwise OpenMeetings would surely do the job just fine > > for me, so I sincerely hope I can make the recordings > > work, but I need help from the OM experts for that. :) > > > > Friendly greetings, > > Mikael > > > > On 2012.12.12, at 15:09, Nicklas af Ekenstam wrote: > > > Thanks Dimitri, > > > > > > That's helpful nonetheless. I may try both CentOS and > > > Ubuntu then. > > > > > > I also found something which I think answers my > > > somewhat ill articulated question regarding upstream > > > relay servers: > > > https://cwiki.apache.org/confluence/display/OPENMEETING > > >S/Cluster+Master-Slave+overview > > > > > > Thanks again, > > > Nicklas > > > > > > On Wed, Dec 12, 2012 at 2:04 PM, Dimitri Yioulos > > > <dyiou...@onpointfc.com> wrote: Hi, Nicklas. > > > > > > I can't answer any of your technical questions, but can > > > say that I've installed OM on a VMware virtual machine > > > running CentOS 6.3. It works a treat. Others have > > > installed it on machines running Ubuntu. I guess > > > that's a matter of personal choice depending on, for > > > example, the distro you're most comfortable with, or > > > run in your environment. > > > > > > HTH. > > > > > > Dimitri > > > > > > > > > On Wednesday 12 December 2012 5:55:41 am Nicklas af > > > Ekenstam > > > > > > wrote: > > > > Hello, > > > > > > > > I am in the process of setting up a proof of concept > > > > based on OpenMeetings and would very much appreciate > > > > your input on a few questions before I get started. > > > > The goal of this proof of concept is to evaluate if > > > > OpenMeetings would be a suitable replacement for a > > > > current system based on Adobe Connect. (I sure hope > > > > so.) > > > > > > > > What I would like to do is install a fully working > > > > OpenMeetings environment that we can play around > > > > with. As I would propably have to take this on the > > > > road I'm wondering if a VMware based install would > > > > work? I see that there are some VMware images > > > > available for download but I think I would prefer to > > > > do the install from scratch myself in order to assess > > > > the installation process as well. > > > > > > > > I'm thinking of doing the install in one of our > > > > Vsphere clusters and, if I need to take it on the > > > > road with me, export it to VMware Workstation images > > > > and run locally on one (or more) laptops with my own > > > > networking equipment. > > > > > > > > These are my questions: > > > > What is a solid choice for the OS/distro? I'm > > > > guessing, based on reading the Wiki, that CentOS is a > > > > good choice; but what version? Or should I look into > > > > one of the other fine distros out there? > > > > > > > > I'm looking to try the clustering features as well on > > > > this project so, based on that, how many servers - > > > > performing what tasks - do you propose I setup? I > > > > would like to use PostgreSQL for the DB, but MySQL > > > > would also work. Two servers running OpenMeetings and > > > > one server running the database? > > > > > > > > I would also like to explore SIP connectivity so > > > > perhaps one server running Asterisk (or similiar)? > > > > > > > > Do I need any more servers for something that would, > > > > pretty much, mimic a real live situation? > > > > > > > > And while I'm asking questions: > > > > Is there a way to extend OpenMeetings so that video > > > > broadcasts could use upstream relaying servers > > > > somehow? We have schools in different locations and > > > > it would be nice if people in these schools could > > > > connect to a locally installed relay server for the > > > > video feed instead of each of them having to go the > > > > main OpenMeetings server gobbling up unnecessary > > > > bandwidth in the process. > > > > > > > > Thanks in advance, > > > > Nicklas > > > > > > -- > > > This message has been scanned for viruses and > > > dangerous content by MailScanner, and is > > > believed to be clean. > > > > -- > This message has been scanned for viruses and > dangerous content by MailScanner, and is > believed to be clean. > > > > > > -- > WBR > Maxim aka solomax > > > > > -- > WBR > Maxim aka solomax
