MySQL "busy buffer" implicated in test flakes

[AlCutter]

ok github.com/google/trillian/examples/ct/ctmapper/mapper 1.016s
? github.com/google/trillian/examples/vmap/trillian_map_client [no test files]
? github.com/google/trillian/extension [no test files]
[mysql] 2018/01/03 14:01:43 packets.go:450: busy buffer
E0103 14:01:43.221471 11359 log_operation_manager.go:452] failed to execute operation on logs: failed to retrieve full list of log IDs: failed to get tx for retrieving logIDs: context canceled
--- FAIL: TestInProcessLogIntegration (21.26s)
log_integration_test.go:106: Test failed: log inclusion index: 91 proof checks failed: GetInclusionProof(index: 91, treeSize 108): rpc error: code = Unavailable desc = transport is closing, want nil: true
FAIL
FAIL github.com/google/trillian/integration 41.638s
ok github.com/google/trillian/integration/admin 3.337s

Potentially related background: go-sql-driver/mysql#314

[AlCutter]

Also possibly related: go-sql-driver/mysql#526

[Martin2112]

Your fix looked like it might have solved this?

[Martin2112]

I think this is probably fixed. Will close for now.