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Subject [GitHub] [qpid-dispatch] ChugR commented on issue #554: DISPATCH-1266: Fix unsettled multicast forwarding
Date Thu, 22 Aug 2019 13:30:47 GMT
ChugR commented on issue #554: DISPATCH-1266: Fix unsettled multicast forwarding
URL: https://github.com/apache/qpid-dispatch/pull/554#issuecomment-523907220
 
 
   I ran this with a tortured configuration:
     4 interior routers zigzagging between two hosts
     8 edge routers: four on each host connecting to all the interiors
   Send 1M multicast messages
     1 sender
     4 receivers: two on each host receiving from an edge on this host and that host
   
   After 550K messages the setup died. One host was OOM and an interior router disappeared
without crashing. It went defunct. Fortunately one of the interior routers would still respond
to qdstat.
   
   Will run this test again with a simpler configurations to get a reproducer.
   
   ```
   $ qdstat -g -b taj:21015
   Router Statistics
     attr                             value
     =================================================
     Version                          1.9.0-SNAPSHOT
     Mode                             interior
     Router Id                        INTC
     Area                             0
     Link Routes                      2
     Auto Links                       2
     Links                            10
     Nodes                            0
     Addresses                        19
     Connections                      3
     Presettled Count                 0
     Dropped Presettled Count         0
     Accepted Count                   555330
     Rejected Count                   0
     Released Count                   0
     Modified Count                   0
     Deliveries Delayed > 1sec        0
     Deliveries Delayed > 10sec       0
     Deliveries to Fallback           0
     Ingress Count                    1
     Egress Count                     555329
     Transit Count                    555329
     Deliveries from Route Container  0
     Deliveries to Route Container    0
   
   chug@unused apr5> qdstat -m -b taj:21015
   Types
     type                        size   batch  thread-max  total      in-threads  rebal-in
 rebal-out
     ==================================================================================================
     _endpoint_ref_t             32     64     128         64         64          0      
  0
     qd_bitmask_t                24     64     128         640        192         8,713  
  8,720
     qd_buffer_t                 536    64     128         2,225,472  2,221,504   26,862 
  26,924
     qd_composed_field_t         64     64     128         256        256         0      
  0
     qd_composite_t              112    64     128         320        320         0      
  0
     qd_connection_t             2,360  16     32          80         64          4      
  5
     qd_connector_t              504    64     128         64         64          0      
  0
     qd_hash_handle_t            16     64     128         128        128         0      
  0
     qd_hash_item_t              32     64     128         192        192         0      
  0
     qd_iterator_t               160    64     128         5,004,608  4,998,272   1,130  
  1,229
     qd_link_ref_t               24     64     128         832        384         2,192  
  2,199
     qd_link_t                   104    64     128         128        128         0      
  0
     qd_listener_t               440    64     128         64         64          0      
  0
     qd_log_entry_t              2,112  16     32          1,072      1,072       0      
  0
     qd_management_context_t     56     64     128         64         64          0      
  0
     qd_message_content_t        1,080  64     128         556,288    555,456     953    
  966
     qd_message_t                144    64     128         1,112,512  555,584     1,806  
  10,508
     qd_node_t                   56     64     128         64         64          0      
  0
     qd_parse_node_t             104    64     128         128        128         0      
  0
     qd_parsed_field_t           88     64     128         2,224,000  2,221,632   45     
  82
     qd_parsed_turbo_t           64     64     128         256        256         0      
  0
     qd_timer_t                  56     64     128         128        128         0      
  0
     qdr_action_t                160    64     128         448        128         44,487 
  44,492
     qdr_addr_endpoint_state_t   48     64     128         64         64          0      
  0
     qdr_address_config_t        72     64     128         64         64          0      
  0
     qdr_address_t               376    64     128         64         64          0      
  0
     qdr_auto_link_t             136    64     128         64         64          0      
  0
     qdr_conn_identifier_t       112    64     128         64         64          0      
  0
     qdr_connection_info_t       88     64     128         128        128         0      
  0
     qdr_connection_t            568    64     128         128        128         0      
  0
     qdr_connection_work_t       48     64     128         64         64          0      
  0
     qdr_delivery_cleanup_t      32     64     128         555,712    384         8,732  
  17,409
     qdr_delivery_ref_t          24     64     128         832        384         8,671  
  8,678
     qdr_delivery_t              288    64     128         1,111,104  555,520     78     
  8,759
     qdr_field_t                 40     64     128         320        320         950    
  950
     qdr_forward_deliver_info_t  32     64     128         64         64          0      
  0
     qdr_general_work_t          128    64     128         1,728      320         1,412  
  1,434
     qdr_link_ref_t              24     64     128         640        448         6,672  
  6,675
     qdr_link_route_t            112    64     128         64         64          0      
  0
     qdr_link_t                  512    64     128         192        192         0      
  0
     qdr_link_work_t             48     64     128         512        448         6,492  
  6,493
     qdr_node_t                  64     64     128         64         64          0      
  0
     qdr_query_t                 344    64     128         128        128         0      
  0
     qdr_terminus_t              64     64     128         192        192         0      
  0
     qdrc_endpoint_t             24     64     128         64         64          0      
  0
     qdtm_router_t               16     64     128         64         64          0      
  0
   
   ```

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