Josh Elser created ACCUMULO-4412:
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Summary: Race condition in starting proxy for ITs
Key: ACCUMULO-4412
URL: https://issues.apache.org/jira/browse/ACCUMULO-4412
Project: Accumulo
Issue Type: Bug
Components: proxy, test
Reporter: Josh Elser
Assignee: Josh Elser
Priority: Minor
Fix For: 1.7.3, 1.8.1
Had a test failure last night in KerberosProxyIT. It seems the following
happened
# Bind a server socket using '0' (pull a free port from the ephemeral range)
# Determine the actual port which was bound
# Close the socket
# Another process grabbed the port we had bound
# Attempt to start the proxy on that port
The proxy failed to start because the port we provided was already taken. This
stems from a problem that we can't have the Proxy bind to any free port and
figure out where it started (what port it actually bound); maybe we could
provide configuration to advertise this in ZooKeeper (will file another issue).
For this test, if we fail to connect to the proxy and the proxy is dead, we can
try to re-start the proxy with a different port. Given how rare this scenario
is, hopefully retrying it takes the chance it happens again to effectively 0%.
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