Close JCO Session

[Former Member]

Dear All,

We are facing a major performance problem in the production environment. We have more than 300 users in the production. when I was checking JCO connections status through sm04 transaction, we see most of the connections stay open more than one day. After reaching the maximum, we are forced to restart the server. Then only the JCO connections are closed. We have SSO enabled for all the model data JCO connections.

I found some peoplo adjust do it like this:

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Zzcsh_Nbzy_T09_Input input = new Zzcsh_Nbzy_T09_Input();

input.setI_Bukrs(el.getI_bukrs());

input.setI_Date_B(el.getI_date_b());

input.setI_Date_E(el.getI_date_e());

input.setI_Only_Sbd(el.getI_only_sbd());

input.setI_Swerk(el.getI_swerk());

try{

input.execute();

}catch(Exception e) {

reporter.error("error："+e.getMessage());

}

wdContext.nodeZcsh_Struc_Sbbd();

Common.getReturn(input.getOutput().getReturn(),reporter);

List list = input.getOutput().getTb_List();

wdContext.nodeZcsh_Struc_Sbbd().bind(list);

input.modelInstance().disconnectIfAlive();

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I met this error:

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com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: connection closed without message (CM_NO_DATA_RECEIVED)

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How can I do it?

Best Regards.

Jiandong

[Former Member · Accepted solution]

Hi ,

Write the code as follows and check.

Zzcsh_Nbzy_T09_Input input = new Zzcsh_Nbzy_T09_Input();

input.setI_Bukrs(el.getI_bukrs());

input.setI_Date_B(el.getI_date_b());

input.setI_Date_E(el.getI_date_e());

input.setI_Only_Sbd(el.getI_only_sbd());

input.setI_Swerk(el.getI_swerk());

try{

input.execute();

wdContext.nodeZcsh_Struc_Sbbd();

Common.getReturn(input.getOutput().getReturn(),reporter);

List list = input.getOutput().getTb_List();

wdContext.nodeZcsh_Struc_Sbbd().bind(list);

}catch(Exception e) {

reporter.error("error："+e.getMessage());

}

finally

{

input.modelInstance().disconnectIfAlive();

}

Best Wishes

Idhaya R

[Former Member · Accepted solution]

Dear IdhayaR,

Thank you very mutch. It resolved.

Jiandong

[Former Member · Accepted solution]

Best Wishes

Idhaya R

[Former Member]

.

[former_member197348]

Hi Jiandong,

Try this:

Increase Maximum Pool Size: 300 , Maximum Connections = 300 for JCO. Increase Maximum Waiting Time and decrease Connection Timeout

I don't see any problem with your coding but I think you can close the connection