Update: I downloaded the tester from thoeni.io and ran the test before and after applying the /etc/hosts change. The tester did not show any improvement at all: still about 5ms to execute.
However, my real app (a Spring Boot web-app running in Tomcat 8 accessing H2 in server mode) now appears to start and stop as quickly as it did before I installed MacOS Sierra. So I call that a win! Bob On Saturday, November 19, 2016 at 2:32:14 PM UTC-5, [email protected] wrote: > > Some further testing in my case shows the issue is related to Java 8, > because Java 7 does not show the slowdown. > I am still seeing the issue with Java 8u112 (which has several > Sierra-related fixes in it). > Using h2 version 1.4.193 with url: > > jdbc:h2:ssl://localhost:8955///Users/bob/path-to-my/db;MVCC=TRUE;MAX_COMPACT_TIME=5000;MV_STORE=FALSE > > Bob > > > On Tuesday, November 15, 2016 at 5:29:56 PM UTC-5, Tomas Pospichal wrote: >> >> One possibility for slowdowns when opening a connection: sometimes even >> innocent looking net calls from Java produce reverse DNS attempts, which >> could cause visible slowdowns on a local network. In this situation, using >> an IP address might be paradoxically slower than using a host name. >> >> This behavior might be very system dependent, so it is better to state >> what version of system and Java you have, and what URL string you used (was >> it SSL?). >> >> For illustration, see >> >> http://stackoverflow.com/questions/3193936/how-to-disable-javas-ssl-reverse-dns-lookup?rq=1 >> or >> https://github.com/spray/spray/issues/993 >> >> Regards, >> Tomas >> >> -- You received this message because you are subscribed to the Google Groups "H2 Database" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/h2-database. For more options, visit https://groups.google.com/d/optout.
