changed retry frequenc, added more error messages for failures.

misc/custom-script-shim

@@ -53,19 +53,22 @@ write_status() {
 check_binary_write_lock() {
     set +e # disable exit on non-zero return code
     local retry_attempts=0
-    while (( retry_attempts < 3 )); do
+    while (( retry_attempts < 10 )); do
         lsof_output="$(lsof ${bin})"
         if [ "$?" -eq 0 ]; then
             echo "${HANDLER_BIN} is open by the following processes: "
             echo "${lsof_output}"
             ((++retry_attempts))
-            echo "sleeping for 30 seconds before retry, attempt ${retry_attempts} of 3"
-            sleep 30
+            echo "sleeping for 3 seconds before retry, attempt ${retry_attempts} of 10"
+            sleep 3
         else
             set -e
             return 0 #Success path
         fi
     done
+    echo "Timed out waiting for lock on ${HANDLER_BIN}"
+    echo "File handle is still open by the following processes: "
+    echo "${lsof_output}"
     exit 1
 }