Synametrics Technologies

Hello,

After updating the Syncrify server to Version: 5.6 - build 1140, some clients are unable to update, and below is what we get in the logs of one of them; endless attempts to download the .jar file, which is jamming the network and the same errors:

2023-02-06 12:55:12,234 {INFO Thread-96} [ServiceHelper] - Server has a newer copy of Syncrify Client based on LMD
2023-02-06 12:56:12,242 {INFO Thread-98} [ServiceHelper] - Server has a newer copy of Syncrify Client based on LMD
2023-02-06 12:57:12,426 {INFO Thread-100} [ServiceHelper] - Server has a newer copy of Syncrify Client based on LMD
2023-02-06 12:58:13,586 {INFO Thread-102} [ServiceHelper] - Server has a newer copy of Syncrify Client based on LMD
2023-02-06 12:58:52,631 {ERROR Thread-88} [ServiceHelper] - Unable to download http://xxxxxxxxxx:xxxxx/app?operation=dnci&type=jar
2023-02-06 12:59:52,460 {ERROR Thread-86} [ServiceHelper] - Unable to download http://xxxxxxxxxx:xxxxx/app?operation=dnci&type=jar
2023-02-06 13:00:26,532 {ERROR Thread-90} [ServiceHelper] - Unable to download http://xxxxxxxxxx:xxxxx/app?operation=dnci&type=jar
2023-02-06 13:02:11,423 {ERROR Thread-92} [ServiceHelper] - Unable to download http://xxxxxxxxxx:xxxxx/app?operation=dnci&type=jar
2023-02-06 13:03:18,979 {ERROR Thread-94} [ServiceHelper] - Unable to download http://xxxxxxxxxx:xxxxx/app?operation=dnci&type=jar
2023-02-06 13:04:24,851 {ERROR Thread-96} [ServiceHelper] - Unable to download http://xxxxxxxxxx:xxxxx/app?operation=dnci&type=jar
2023-02-06 13:05:19,635 {ERROR Thread-100} [ServiceHelper] - Unable to download http://xxxxxxxxxx:xxxxx/app?operation=dnci&type=jar
2023-02-06 13:05:24,443 {ERROR Thread-98} [ServiceHelper] - Unable to download http://xxxxxxxxxx:xxxxx/app?operation=dnci&type=jar
2023-02-06 13:05:44,065 {ERROR Thread-102} [ServiceHelper] - Unable to download http://xxxxxxxxxx:xxxxx/app?operation=dnci&type=jar

I had to manually patch by using this method: https://web.synametrics.com/syncrifyclientautoupgrade.htm#:~:text=Manually%20Patching%20Clients,log%20for%20errors.

However, I cannot find out why the client didn't update automatically. There was no firewall or antivirus involved.

Any idea about what could cause this? Thanks!

I pasted it and successfully downloaded the .jar file, I renamed it to clientRT.jar and manually copied it into $DATA_FOLDER\patches which successfully updated the client. 

But I'm trying to find out why the client didn't update automatically after the server update. 

Could you please send us the public URL of your Syncrify server via email to support@synametrics.com . We can try downloading programmatically to see if we run into any errors.

Note that downloading the JAR file programmatically is a two-step process:

1. File is downloaded
2. The MD5 signature of the file is compared with the copy on the server. If the MD5 does not match, client won't be able to update themselves.

We can check if we can download this file on our end.

Also, is this happening with every client or just a few of them?