1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
// Copyright 2016 The Bazel Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.devtools.build.remote;
import com.google.devtools.build.lib.remote.HazelcastCacheFactory;
import com.google.devtools.build.lib.remote.MemcacheActionCache;
import com.google.devtools.build.lib.remote.MemcacheWorkExecutor;
import com.google.devtools.build.lib.remote.RemoteOptions;
import com.google.devtools.build.lib.remote.RemoteProtocol.RemoteWorkRequest;
import com.google.devtools.build.lib.remote.RemoteProtocol.RemoteWorkResponse;
import com.google.devtools.build.lib.remote.RemoteWorkGrpc;
import com.google.devtools.build.lib.util.OS;
import com.google.devtools.build.lib.util.ProcessUtils;
import com.google.devtools.build.lib.vfs.FileSystem;
import com.google.devtools.build.lib.vfs.FileSystemUtils;
import com.google.devtools.build.lib.vfs.JavaIoFileSystem;
import com.google.devtools.build.lib.vfs.Path;
import com.google.devtools.build.lib.vfs.UnixFileSystem;
import com.google.devtools.common.options.OptionsParser;
import io.grpc.Server;
import io.grpc.ServerBuilder;
import io.grpc.stub.StreamObserver;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Collections;
import java.util.UUID;
import java.util.concurrent.ConcurrentMap;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Implements a remote worker that accepts work items as protobufs.
* The server implementation is based on grpc.
*/
public class RemoteWorker implements RemoteWorkGrpc.RemoteWork {
private static final Logger LOG = Logger.getLogger(RemoteWorker.class.getName());
private static final boolean LOG_FINER = LOG.isLoggable(Level.FINER);
private final Path workPath;
private final RemoteOptions remoteOptions;
private final RemoteWorkerOptions options;
private final ConcurrentMap<String, byte[]> cache;
public RemoteWorker(
Path workPath,
RemoteOptions remoteOptions,
RemoteWorkerOptions options,
ConcurrentMap<String, byte[]> cache) {
this.workPath = workPath;
this.remoteOptions = remoteOptions;
this.options = options;
this.cache = cache;
}
@Override
public void executeSynchronously(
RemoteWorkRequest request, StreamObserver<RemoteWorkResponse> responseObserver) {
Path tempRoot = workPath.getRelative("build-" + UUID.randomUUID().toString());
try {
FileSystemUtils.createDirectoryAndParents(tempRoot);
final MemcacheActionCache actionCache =
new MemcacheActionCache(tempRoot, remoteOptions, cache);
final MemcacheWorkExecutor workExecutor =
MemcacheWorkExecutor.createLocalWorkExecutor(actionCache, tempRoot);
if (LOG_FINER) {
LOG.fine(
"Work received has "
+ request.getInputFilesCount()
+ " input files and "
+ request.getOutputFilesCount()
+ " output files.");
}
RemoteWorkResponse response = workExecutor.executeLocally(request);
responseObserver.onNext(response);
if (options.debug) {
if (!response.getSuccess()) {
LOG.warning("Work failed. Request: " + request.toString() + ".");
} else if (LOG_FINER) {
LOG.fine("Work completed.");
}
}
if (!options.debug || response.getSuccess()) {
FileSystemUtils.deleteTree(tempRoot);
} else {
LOG.warning("Preserving work directory " + tempRoot.toString() + ".");
}
} catch (IOException e) {
RemoteWorkResponse.Builder response = RemoteWorkResponse.newBuilder();
response.setSuccess(false).setOut("").setErr("").setException(e.toString());
responseObserver.onNext(response.build());
} finally {
responseObserver.onCompleted();
}
}
public static void main(String[] args) throws Exception {
OptionsParser parser =
OptionsParser.newOptionsParser(RemoteOptions.class, RemoteWorkerOptions.class);
parser.parseAndExitUponError(args);
RemoteOptions remoteOptions = parser.getOptions(RemoteOptions.class);
RemoteWorkerOptions remoteWorkerOptions = parser.getOptions(RemoteWorkerOptions.class);
if (remoteWorkerOptions.workPath == null) {
printUsage(parser);
return;
}
System.out.println("*** Starting Hazelcast server.");
ConcurrentMap<String, byte[]> cache = new HazelcastCacheFactory().create(remoteOptions);
System.out.println(
"*** Starting grpc server at 0.0.0.0:" + remoteWorkerOptions.listenPort + ".");
Path workPath = getFileSystem().getPath(remoteWorkerOptions.workPath);
FileSystemUtils.createDirectoryAndParents(workPath);
RemoteWorker worker = new RemoteWorker(workPath, remoteOptions, remoteWorkerOptions, cache);
Server server =
ServerBuilder.forPort(remoteWorkerOptions.listenPort)
.addService(RemoteWorkGrpc.bindService(worker))
.build();
server.start();
final Path pidFile;
if (remoteWorkerOptions.pidFile != null) {
pidFile = getFileSystem().getPath(remoteWorkerOptions.pidFile);
PrintWriter writer = new PrintWriter(pidFile.getOutputStream());
writer.append(Integer.toString(ProcessUtils.getpid()));
writer.append("\n");
writer.close();
} else {
pidFile = null;
}
Runtime.getRuntime()
.addShutdownHook(
new Thread() {
@Override
public void run() {
System.err.println("*** Shutting down grpc server.");
server.shutdown();
if (pidFile != null) {
try {
pidFile.delete();
} catch (IOException e) {
System.err.println("Cannot remove pid file: " + pidFile.toString());
}
}
System.err.println("*** Server shut down.");
}
});
server.awaitTermination();
}
public static void printUsage(OptionsParser parser) {
System.out.println("Usage: remote_worker \n\n" + "Starts a worker that runs a RPC service.");
System.out.println(
parser.describeOptions(
Collections.<String, String>emptyMap(), OptionsParser.HelpVerbosity.LONG));
}
static FileSystem getFileSystem() {
return OS.getCurrent() == OS.WINDOWS ? new JavaIoFileSystem() : new UnixFileSystem();
}
}
|
