View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0001642 | GNUnet | transport service | public | 2011-01-07 13:44 | 2024-05-03 13:59 |
| Reporter | mrwiggles | Assigned To | |||
| Priority | normal | Severity | major | Reproducibility | sometimes |
| Status | closed | Resolution | fixed | ||
| Summary | 0001642: Core connections do not stay around as they should. | ||||
| Description | After an indeterminate amount of time peers get disconnected according to the core service. There was a rumor that the disconnects happen after about five minutes, I have not experienced that particular behavior in a while. However, after "some" time peer connections do get dropped. It seems to come from a TCP transport level disconnect, as evidenced by the "transport# disconnects due to timeout" statistic. Peers seem to be more stable over UDP, thus we think it's a TCP issue. Main questions are: 1) if TCP level disconnects happen, why doesn't the transport service attempt to reconnect the peers? 2) there is a transport level keepalive mechanism, is this not working properly? 3) there is a core level keepalive mechanism, is that not working properly? 4) when core disconnects happen should core try to reconnect (or does it now?)? 5) can we re-create this issue by setting timeout values very low? | ||||
| Additional Information | There is a test case in src/testing called test_testing_topology_stability. This should set up a topology, test the connections, then wait for a certain amount of time and test the topology connections again. Does setting the wait period to a very long amount of time make this more predictable? What causes the disconnects if so? | ||||
| Tags | No tags attached. | ||||
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Put testcase, test_testing_topology_stability into HAVE_EXPENSIVE_TESTS, so we should be able to test this a bit more regularly. Problem is resolved (at least on my system!). |
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Core connections seem quite stable now, no disconnects seen in the stability testcase. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2011-01-07 13:44 | mrwiggles | New Issue | |
| 2011-06-10 14:01 | mrwiggles | Note Added: 0004353 | |
| 2011-06-10 14:03 | mrwiggles | Note Added: 0004354 | |
| 2011-06-10 14:03 | mrwiggles | Status | new => closed |
| 2011-06-10 14:03 | mrwiggles | Resolution | open => fixed |
| 2011-06-10 14:03 | mrwiggles | Fixed in Version | => Git master |
| 2011-09-19 10:45 | Christian Grothoff | Fixed in Version | Git master => 0.9.0pre3 |
| 2011-09-19 10:45 | Christian Grothoff | Target Version | => 0.9.0pre3 |
| 2024-05-03 13:59 | Christian Grothoff | Category | TCP transport => transport service |
