Hi, Yes, I guess the problem is that somehow it's trying to resolve "localhost". I'm hoping there is a simple workaround for H2, but I'm not sure.
Regards, Thomas On Saturday, November 19, 2016, <[email protected]> wrote: > 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] > <javascript:_e(%7B%7D,'cvml','[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] > <javascript:_e(%7B%7D,'cvml','h2-database%[email protected]');> > . > To post to this group, send email to [email protected] > <javascript:_e(%7B%7D,'cvml','[email protected]');>. > Visit this group at https://groups.google.com/group/h2-database. > For more options, visit https://groups.google.com/d/optout. > -- 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.
