From c155bfcef51db4c1f98da77f0fd7736b105794c3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ullrich=20Sch=C3=A4fer?= <hi+github@ullrich.is>
Date: Wed, 25 Mar 2026 13:17:05 +0100
Subject: [PATCH] Increase BRouter heap to 1GB

512MB heap was too tight for 720MB of Germany segments, causing the
thread-priority-watchdog to kill routing requests after 1 second when
segment loading triggered GC pressure.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---
 docker/brouter/Dockerfile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docker/brouter/Dockerfile b/docker/brouter/Dockerfile
index 6ea7073..ec8f0d8 100644
--- a/docker/brouter/Dockerfile
+++ b/docker/brouter/Dockerfile
@@ -24,7 +24,7 @@ USER app
 EXPOSE 17777
 
 # BRouter server: <segmentdir> <profiledir> <customprofiledir> <port> <maxthreads>
-CMD ["java", "-Xmx512M", "-Xms128M", "-Xmn32M", \
+CMD ["java", "-Xmx1024M", "-Xms256M", "-Xmn64M", \
      "-DmaxRunningTime=300", \
      "-cp", "brouter.jar", \
      "btools.server.RouteServer", \