Fixing schema validation deadlock, and more verbose messaging.
Fixing schema validation deadlock, and more verbose messaging.

LGTM Mike.

davygeek/vitess,cgvarela/vitess,HubSpot/vitess,netroby/vitess,michael-berlin/vitess,kuipertan/vitess,yaoshengzhe/vitess,mapbased/vitess,mlc0202/vitess,ptomasroos/vitess,SDHM/vitess,fengshao0907/vitess,tjyang/vitess,yaoshengzhe/vitess,apmichaud/vitess-apm,HeisenbergUncertain/vitess,rnavarro/vitess,cloudbearings/vitess,rnavarro/vitess,anusornc/vitess,sougou/vitess,dcadevil/vitess,sougou/vitess,apmichaud/vitess-apm,yaoshengzhe/vitess,yaoshengzhe/vitess,cloudbearings/vitess,ngaut/vitess,mlc0202/vitess,cgvarela/vitess,SDHM/vitess,tirsen/vitess,tirsen/vitess,cgvarela/vitess,xgwubin/vitess,ngaut/vitess,sougou/vitess,kmiku7/vitess-annotated,davygeek/vitess,netroby/vitess,tinyspeck/vitess,pivanof/vitess,CERN-Stage-3/vitess,tirsen/vitess,anusornc/vitess,aaijazi/vitess,erzel/vitess,tinyspeck/vitess,atyenoria/vitess,applift/vitess,vitessio/vitess,anusornc/vitess,erzel/vitess,apmichaud/vitess-apm,applift/vitess,cloudbearings/vitess,pivanof/vitess,rnavarro/vitess,nurblieh/vitess,yangzhongj/vitess,applift/vitess,enisoc/vitess,erzel/vitess,enisoc/vitess,skyportsystems/vitess,cloudbearings/vitess,aaijazi/vitess,skyportsystems/vitess,atyenoria/vitess,cloudbearings/vitess,davygeek/vitess,anusornc/vitess,yangzhongj/vitess,mahak/vitess,kmiku7/vitess-annotated,netroby/vitess,michael-berlin/vitess,pivanof/vitess,skyportsystems/vitess,tirsen/vitess,mapbased/vitess,mlc0202/vitess,kmiku7/vitess-annotated,sougou/vitess,davygeek/vitess,kmiku7/vitess-annotated,yangzhongj/vitess,pivanof/vitess,anusornc/vitess,mlc0202/vitess,atyenoria/vitess,mahak/vitess,dumbunny/vitess,vitessio/vitess,tjyang/vitess,HubSpot/vitess,alainjobart/vitess,yangzhongj/vitess,nurblieh/vitess,mattharden/vitess,mattharden/vitess,cgvarela/vitess,erzel/vitess,mlc0202/vitess,SDHM/vitess,cloudbearings/vitess,vitessio/vitess,cgvarela/vitess,nurblieh/vitess,applift/vitess,davygeek/vitess,fengshao0907/vitess,yaoshengzhe/vitess,tinyspeck/vitess,ngaut/vitess,dcadevil/vitess,CERN-Stage-3/vitess,fengshao0907/vitess,ptomasroos/vitess,netroby/vitess,HubSpot/vitess,ptomasroos/vitess,fengshao0907/vitess,skyportsystems/vitess,guokeno0/vitess,tirsen/vitess,mattharden/vitess,michael-berlin/vitess,SDHM/vitess,SDHM/vitess,tinyspeck/vitess,vitessio/vitess,nurblieh/vitess,atyenoria/vitess,kuipertan/vitess,enisoc/vitess,mapbased/vitess,AndyDiamondstein/vitess,dcadevil/vitess,alainjobart/vitess,dcadevil/vitess,erzel/vitess,yaoshengzhe/vitess,SDHM/vitess,skyportsystems/vitess,netroby/vitess,aaijazi/vitess,mahak/vitess,michael-berlin/vitess,alainjobart/vitess,xgwubin/vitess,alainjobart/vitess,atyenoria/vitess,enisoc/vitess,mapbased/vitess,skyportsystems/vitess,pivanof/vitess,erzel/vitess,mattharden/vitess,rnavarro/vitess,HeisenbergUncertain/vitess,dumbunny/vitess,xgwubin/vitess,applift/vitess,enisoc/vitess,HubSpot/vitess,cloudbearings/vitess,cloudbearings/vitess,tirsen/vitess,HubSpot/vitess,AndyDiamondstein/vitess,dumbunny/vitess,nurblieh/vitess,michael-berlin/vitess,pivanof/vitess,mattharden/vitess,rnavarro/vitess,pivanof/vitess,vitessio/vitess,cloudbearings/vitess,AndyDiamondstein/vitess,mapbased/vitess,kuipertan/vitess,skyportsystems/vitess,tjyang/vitess,dumbunny/vitess,tjyang/vitess,nurblieh/vitess,ptomasroos/vitess,kuipertan/vitess,nurblieh/vitess,apmichaud/vitess-apm,skyportsystems/vitess,anusornc/vitess,dcadevil/vitess,mlc0202/vitess,tirsen/vitess,cgvarela/vitess,applift/vitess,atyenoria/vitess,sougou/vitess,atyenoria/vitess,xgwubin/vitess,aaijazi/vitess,mahak/vitess,tjyang/vitess,netroby/vitess,alainjobart/vitess,AndyDiamondstein/vitess,mattharden/vitess,ptomasroos/vitess,mapbased/vitess,guokeno0/vitess,SDHM/vitess,mattharden/vitess,alainjobart/vitess,fengshao0907/vitess,AndyDiamondstein/vitess,SDHM/vitess,erzel/vitess,fengshao0907/vitess,aaijazi/vitess,guokeno0/vitess,CERN-Stage-3/vitess,skyportsystems/vitess,HeisenbergUncertain/vitess,guokeno0/vitess,pivanof/vitess,michael-berlin/vitess,alainjobart/vitess,ptomasroos/vitess,kmiku7/vitess-annotated,pivanof/vitess,rnavarro/vitess,ptomasroos/vitess,CERN-Stage-3/vitess,davygeek/vitess,xgwubin/vitess,sougou/vitess,michael-berlin/vitess,ngaut/vitess,yaoshengzhe/vitess,michael-berlin/vitess,tinyspeck/vitess,dumbunny/vitess,mahak/vitess,tirsen/vitess,tjyang/vitess,dumbunny/vitess,AndyDiamondstein/vitess,kuipertan/vitess,rnavarro/vitess,vitessio/vitess,HubSpot/vitess,mahak/vitess,yangzhongj/vitess,aaijazi/vitess,fengshao0907/vitess,mapbased/vitess,AndyDiamondstein/vitess,applift/vitess,kuipertan/vitess,netroby/vitess,mlc0202/vitess,erzel/vitess,xgwubin/vitess,vitessio/vitess,fengshao0907/vitess,yangzhongj/vitess,dcadevil/vitess,mapbased/vitess,xgwubin/vitess,AndyDiamondstein/vitess,AndyDiamondstein/vitess,ptomasroos/vitess,sougou/vitess,netroby/vitess,vitessio/vitess,enisoc/vitess,xgwubin/vitess,aaijazi/vitess,mattharden/vitess,tinyspeck/vitess,SDHM/vitess,tirsen/vitess,yaoshengzhe/vitess,erzel/vitess,mapbased/vitess,aaijazi/vitess,apmichaud/vitess-apm,michael-berlin/vitess,kmiku7/vitess-annotated,yangzhongj/vitess,guokeno0/vitess,kuipertan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