oasisdigital / bazelcon-2019 Goto Github PK
View Code? Open in Web Editor NEWBazel examples for "Bazel Boot Camp" session at Bazelcon 2019
Bazel examples for "Bazel Boot Camp" session at Bazelcon 2019
Unfortunately, the multi-language example fails to build - "Unknown host: central.maven.org".
$ ./exercise.sh
INFO: Invocation ID: 4b34e4c7-8d76-4f74-8dcc-5c39c0b14b78
INFO: Call stack for the definition of repository 'com_google_code_findbugs_jsr305' which is a jvm_import_external (rule definition at /private/var/tmp/_bazel_rex/cb8bf2b5ba486001ec55e2bff320f362/external/bazel_tools/tools/build_defs/repo/jvm.bzl:207:23):
- /private/var/tmp/_bazel_rex/cb8bf2b5ba486001ec55e2bff320f362/external/bazel_tools/tools/build_defs/repo/jvm.bzl:267:5
- /private/var/tmp/_bazel_rex/cb8bf2b5ba486001ec55e2bff320f362/external/io_grpc_grpc_java/repositories.bzl:201:5
- /private/var/tmp/_bazel_rex/cb8bf2b5ba486001ec55e2bff320f362/external/io_grpc_grpc_java/repositories.bzl:87:9
- /Users/rex/work/repos/bazelcon-2019/4-multi-language/WORKSPACE:82:1
WARNING: Download from http://central.maven.org/maven2/com/google/code/findbugs/jsr305/3.0.2/jsr305-3.0.2.jar failed: class com.google.devtools.build.lib.bazel.repository.downloader.UnrecoverableHttpException Unknown host: central.maven.org
ERROR: An error occurred during the fetch of repository 'com_google_code_findbugs_jsr305':
java.io.IOException: Error downloading [http://central.maven.org/maven2/com/google/code/findbugs/jsr305/3.0.2/jsr305-3.0.2.jar] to /private/var/tmp/_bazel_rex/cb8bf2b5ba486001ec55e2bff320f362/external/com_google_code_findbugs_jsr305/jsr305-3.0.2.jar: Unknown host: central.maven.org
ERROR: /private/var/tmp/_bazel_rex/cb8bf2b5ba486001ec55e2bff320f362/external/io_grpc_grpc_java/compiler/BUILD.bazel:18:1: @io_grpc_grpc_java//compiler:java_grpc_library_deps__do_not_reference depends on @com_google_code_findbugs_jsr305//jar:jar in repository @com_google_code_findbugs_jsr305 which failed to fetch. no such package '@com_google_code_findbugs_jsr305//jar': java.io.IOException: Error downloading [http://central.maven.org/maven2/com/google/code/findbugs/jsr305/3.0.2/jsr305-3.0.2.jar] to /private/var/tmp/_bazel_rex/cb8bf2b5ba486001ec55e2bff320f362/external/com_google_code_findbugs_jsr305/jsr305-3.0.2.jar: Unknown host: central.maven.org
ERROR: Analysis of target '//service/src/main/java/com/oasisdigital/grocery:grocery' failed; build aborted: no such package '@com_google_code_findbugs_jsr305//jar': java.io.IOException: Error downloading [http://central.maven.org/maven2/com/google/code/findbugs/jsr305/3.0.2/jsr305-3.0.2.jar] to /private/var/tmp/_bazel_rex/cb8bf2b5ba486001ec55e2bff320f362/external/com_google_code_findbugs_jsr305/jsr305-3.0.2.jar: Unknown host: central.maven.org
INFO: Elapsed time: 0.844s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (2 packages loaded, 15 targets configured)
Fetching @org_golang_google_grpc; Restarting.
Fetching @bazel_gazelle_go_repository_config; Restarting.
Fetching @org_golang_x_tools; Cloning c9f9432ec4b21a28c4d47f172513698febb68e9c of https://go.googlesource.com/tools
Fetching @bazel_gazelle_go_repository_tools; fetching
Fetching @org_golang_x_net; Restarting.
I couldn't get this hostname to resolve through my default DNS, or directly with Google's DNS. Maven.org seems to resolve, just not the subdomain "central.maven.org"... perhaps this is a transitive dependency issue (no surprise there).
$ nslookup
> maven.org
Server: 103.86.96.100
Address: 103.86.96.100#53
Non-authoritative answer:
Name: maven.org
Address: 216.146.46.10
Name: maven.org
Address: 216.146.46.11
> central.maven.org
Server: 103.86.96.100
Address: 103.86.96.100#53
** server can't find central.maven.org: NXDOMAIN
> server 8.8.8.8
Default server: 8.8.8.8
Address: 8.8.8.8#53
> central.maven.org
Server: 8.8.8.8
Address: 8.8.8.8#53
** server can't find central.maven.org: NXDOMAIN
> server
Default server: 8.8.8.8
Address: 8.8.8.8#53
> maven.org
Server: 8.8.8.8
Address: 8.8.8.8#53
Non-authoritative answer:
Name: maven.org
Address: 216.146.46.11
Name: maven.org
Address: 216.146.46.10
Some Google-Fu suggests central.maven.org disabled requests over http, and perhaps this transitive dependency is to blame.
After some digging... it looks like the root cause is from the grpc dependency and was patched probably shortly after you gave the talk.
A declarative, efficient, and flexible JavaScript library for building user interfaces.
๐ Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. ๐๐๐
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google โค๏ธ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.