Do not requeue report as this may lead to a dead lock. It should retry by itself.

src/altk/comm/engine/postback/PostBack.java

@@ -142,12 +142,14 @@ public class PostBack
                             break;
                             
                         case SERVER_IO_ERROR:
+                            /*  Should not requeue report for this may lead to dead lock on this queu.
                             // TODO: Limit retries, using rate limiting.  Posting can be recovered using the activity log.
                             // Re-queue these reports
                             for (String rpt : reportList)
                             {
                                 queueReport(rpt);
                             }
+                            */
                             // Sleep for a while before retrying this PostBack server.
                             CommonLogger.alarm.warn("Caught server IO error.  sleep for " + POSTBACK_SERVER_WAIT_TIME + " seconds");
                             try