Comment 2 for bug 1277703

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Teemu Ollakka (teemu-ollakka) wrote : Re: 5.6 cluster reports wsrep_cert_deps_distance=1.0 in all cases

It looks that each THD entering to pre-commit stage has thd->wsrep_PA_safe set to false, done in Query_log_event constructor when adding BEGIN Query_log_event into IO cache. This in turn disables PA for transactions, seen as wsrep_cert_deps_distance 1.000000 in wsrep status.