Error : JCo executing logon [null|null]

[Former Member]

Dear All,

I am working on SAP Netweaver CE 7.1.1 . I am working on WebDynpro Java Application.

My application is connecting to backend SAP system through JCo. Some times while connecting to backend I am getting error as "JCo executing logon [null|null]" in log(At this time, thread was doing this task. we saw this in SAP management console) and At the same time, activity indicator wheel kept rolling in the application. after few seconds, It was getting resolved automatically. This is happening frequently.. And also when this problem happened, I was not able to ping JCo.

Please let me know what can be wrong in this case and how to resolved this issue.

Thanks in advance

Regards

Raja

[former_member185879 · Accepted solution]

Hello Randy,

Can you check the pool configuration setting of JCo? may be that will be one of the problems for jco client null issue.

Regards

Nizamudeen SM

[Former Member · Accepted solution]

Yes.. may be.. But we have the configuration which is good enough..

Maximum Pool Size: 50

Maximum Connections: 100

Connection Timout (sec.):10000

Maximum Waiting Time (sec.):30000

thanks in advance

Regards

Raja V