gh-5144-qsync-dup-confirm.test.lua hangs

[Gerold103]

Run this:

python test-run.py qsync -j -1 --conf memtx

Get this:

================================================================================
TEST                                            PARAMS          RESULT
---------------------------------------------------------------------------
replication/gh-5140-qsync-casc-rollback.test.luamemtx           [ pass ]
replication/gh-5144-qsync-dup-confirm.test.lua  memtx           

It hangs infinitely. What is also interesting - test-run does not warn about long run. No messages about 10, 20, 30 ... seconds.

[Gerold103]

This is probably a test-run issue. The test hangs on lines:

replica1_id = test_run:get_server_id('replica1')
replica2_id = test_run:get_server_id('replica2')

Usually on the first line. At the same time, a netbox connection to replica1 and replica2 works fine. I can connect, call :eval() and get server id. However test-run can't do that somewhy.

[Totktonada]

There are no messages about possible hang (10, 20, 30 seconds without output) when test-run is run in 'consistent' mode (-j -1, opposed to 'parallel').