Server watchOperation NPE

Bazel Buildfarm

This repository hosts the Bazel remote caching and execution system.

Background information on the status of caching and remote execution in bazel can be found in the bazel documentation.

File issues here for bugs or feature requests, and ask questions via build team slack in the #buildfarm channel.

Buildfarm Docs

Usage

All commandline options override corresponding config settings.

Redis

Run via

$ docker run -d --rm --name buildfarm-redis -p 6379:6379 redis:7.2.4
redis-cli config set stop-writes-on-bgsave-error no

Bazel Buildfarm Server

Run via

$ bazelisk run //src/main/java/build/buildfarm:buildfarm-server -- <logfile> <configfile>

Ex: bazelisk run //src/main/java/build/buildfarm:buildfarm-server -- --jvm_flag=-Djava.util.logging.config.file=$PWD/examples/logging.properties $PWD/examples/config.minimal.yml

logfile has to be in the standard java util logging format and passed as a --jvm_flag=-Dlogging.config=file: configfile has to be in yaml format.

Bazel Buildfarm Worker

Run via

$ bazelisk run //src/main/java/build/buildfarm:buildfarm-shard-worker -- <logfile> <configfile>

Ex: bazelisk run //src/main/java/build/buildfarm:buildfarm-shard-worker -- --jvm_flag=-Djava.util.logging.config.file=$PWD/examples/logging.properties $PWD/examples/config.minimal.yml

logfile has to be in the standard java util logging format and passed as a --jvm_flag=-Dlogging.config=file: configfile has to be in yaml format.

Bazel Client

To use the example configured buildfarm with bazel (version 1.0 or higher), you can configure your .bazelrc as follows:

$ cat .bazelrc
$ build --remote_executor=grpc://localhost:8980

Then run your build as you would normally do.

Debugging

Buildfarm uses Java's Logging framework and outputs all routine behavior to the NICE Level.

You can use typical Java logging configuration to filter these results and observe the flow of executions through your running services. An example logging.properties file has been provided at examples/logging.properties for use as follows:

$ bazel run //src/main/java/build/buildfarm:buildfarm-server -- --jvm_flag=-Djava.util.logging.config.file=$PWD/examples/logging.properties $PWD/examples/config.minimal.yml

and

$ bazel run //src/main/java/build/buildfarm:buildfarm-shard-worker -- --jvm_flag=-Djava.util.logging.config.file=$PWD/examples/logging.properties $PWD/examples/config.minimal.yml

To attach a remote debugger, run the executable with the --debug=<PORT> flag. For example:

$ bazel run //src/main/java/build/buildfarm:buildfarm-server -- --debug=5005 $PWD/examples/config.minimal.yml

Third-party Dependencies

Most third-party dependencies (e.g. protobuf, gRPC, ...) are managed automatically via rules_jvm_external. These dependencies are enumerated in the WORKSPACE with a maven_install artifacts parameter.

Things that aren't supported by rules_jvm_external are being imported as manually managed remote repos via the WORKSPACE file.

Deployments

Buildfarm can be used as an external repository for composition into a deployment of your choice.

Add the following to your WORKSPACE to get access to buildfarm targets, filling in the commit and sha256 values:

load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")

BUILDFARM_EXTERNAL_COMMIT = "<revision commit id>"
BUILDFARM_EXTERNAL_SHA256 = "<sha256 digest of url below>"

http_archive(
    name = "build_buildfarm",
    strip_prefix = "bazel-buildfarm-%s" % BUILDFARM_EXTERNAL_COMMIT,
    sha256 = BUILDFARM_EXTERNAL_SHA256,
    url = "https://github.com/bazelbuild/bazel-buildfarm/archive/%s.zip" % BUILDFARM_EXTERNAL_COMMIT,
)

load("@build_buildfarm//:deps.bzl", "buildfarm_dependencies")

buildfarm_dependencies()

load("@build_buildfarm//:defs.bzl", "buildfarm_init")

buildfarm_init()

load("@maven//:compat.bzl", "compat_repositories")

compat_repositories()

Optionally, if you want to use the buildfarm docker container image targets, you can add this:

load("@build_buildfarm//:images.bzl", "buildfarm_images")

buildfarm_images()

Helm Chart

To install OCI bundled Helm chart:

helm install \
  -n bazel-buildfarm \
  --create-namespace \
  bazel-buildfarm \
  oci://ghcr.io/bazelbuild/buildfarm \
  --version "0.2.4"

	private OutputDirectory parseOutputDirectories(Iterable<String> outputFiles, Iterable<String> outputDirs) {
	OutputDirectory outputDirectory = new OutputDirectory();
	Stack<OutputDirectory> stack = new Stack<>();

	OutputDirectory currentOutputDirectory = outputDirectory;
	String prefix = "";
	for (String outputFile : outputFiles) {
	while (!outputFile.startsWith(prefix)) {
	currentOutputDirectory = stack.pop();
	int upPathSeparatorIndex = prefix.lastIndexOf('/', prefix.length() - 2);
	prefix = prefix.substring(0, upPathSeparatorIndex + 1);
	}
	String prefixedFile = outputFile.substring(prefix.length());
	int separatorIndex = prefixedFile.indexOf('/');
	while (separatorIndex >= 0) {
	if (separatorIndex == 0) {
	throw new IllegalArgumentException("double separator in output file");
	}

	String directoryName = prefixedFile.substring(0, separatorIndex);
	prefix += directoryName + '/';
	prefixedFile = prefixedFile.substring(separatorIndex + 1);
	stack.push(currentOutputDirectory);
	OutputDirectory nextOutputDirectory = new OutputDirectory();
	currentOutputDirectory.directories.put(directoryName, nextOutputDirectory);
	currentOutputDirectory = nextOutputDirectory;
	separatorIndex = prefixedFile.indexOf('/');
	}
	}

	if (!Iterables.isEmpty(outputDirs)) {
	throw new IllegalArgumentException("outputDir specified: " + outputDirs);
	}

	return outputDirectory;
	}

	# a limit on the action timeout specified in the action, above which
	# the operation will report a failed result immediately
	maximum_action_timeout: {
	seconds: 3600
	nanos: 0
	}

	if (timeout.getSeconds() > maximum.getSeconds() \|\|
	(timeout.getSeconds() == maximum.getSeconds() && timeout.getNanos() > maximum.getNanos())) {
	return false;
	}

	Preconditions.checkState(
	timeout.getSeconds() < maximum.getSeconds() \|\|
	(timeout.getSeconds() == maximum.getSeconds() && timeout.getNanos() < maximum.getNanos()));
	}

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bazel-buildfarm's Introduction

Bazel Buildfarm

Usage

Redis

Bazel Buildfarm Server

Bazel Buildfarm Worker

Bazel Client

Debugging

Third-party Dependencies

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