The error indicates that maximum concurrent FTP connections to the reporter is getting exceeded
This would be seen if there are multiple ProxySGs (more than 10) configured to send logs to the reporter at the same time
The default settings for concurrent client connections for Reporter FTP is 10.
There are two ways to fix this-:
1. Setup ProxySGs to not send logs to Reporter at the same time. This can be done by configuring periodic upload schedule on proxySG and the schedule can be distributed
Click the Upload Schedule tab next to the Upload Client tab.
Make sure the appropriate log is selected. In this example, it is "main".
In the middle there are two types of uploads. Select "periodically" as the upload type.\
At the bottom, under "Upload the log file", you have options to upload the access log on a daily basis at a particular time, or if you want to have it uploaded every so often. Select the time/period in a distributed fashion on all the proxySGs that are setup to send logs to the Reporter
2. Increase the concurrent connection value on Reporter FTP
Login to Reporter using SSH
Go to enable mode
Stop ftp daemon by running the command (this will temporarily stop ftp on reporter and logging of proxySG access logs) ftp stop
Edit FTP configuration by running command. This will open the configuration in vi style editor. ftp edit
Move the cursor to max_clients value and set this value to desired value
Use the following keys to edit the value
i- Inserts text before the current cursor location
a- Inserts text after the current cursor location
x- Deletes the character under the cursor location X- Deletes the character before the cursor location r- Replaces the character under the cursor
Once the value is set, press esc key to come out of edit mode. Then press esc key, followed by :, followed by wq!to save the changes. If you want to exit without saving the changes,then press esc key, followed by : , followed by q!
Exercise caution while doing this change. More details on how to edit the file are mentioned here