@SuppressWarnings({"unchecked", "rawtypes"})
public void start(
Path outputDir, int numReducers, boolean concurrent, String accessKey, String secretKey)
throws GoraException, IOException, Exception {
LOG.info("Running Verify with outputDir=" + outputDir + ", numReducers=" + numReducers);
// DataStore<Long,CINode> store = DataStoreFactory.getDataStore(Long.class, CINode.class, new
// Configuration());
auth = new BasicAWSCredentials(accessKey, secretKey);
DataStore<Long, cidynamonode> store =
WSDataStoreFactory.createDataStore(
DynamoDBStore.class, DynamoDBKey.class, cidynamonode.class, auth);
job = new Job(getConf());
if (!job.getConfiguration()
.get("io.serializations")
.contains("org.apache.hadoop.io.serializer.JavaSerialization")) {
job.getConfiguration()
.set(
"io.serializations",
job.getConfiguration().get("io.serializations")
+ ",org.apache.hadoop.io.serializer.JavaSerialization");
}
job.setJobName("Link Verifier");
job.setNumReduceTasks(numReducers);
job.setJarByClass(getClass());
Query query = store.newQuery();
// if (!concurrent) {
// no concurrency filtering, only need prev field
// query.setFields("prev");
// } else {
// readFlushed(job.getCon figuration());
// }
GoraMapper.initMapperJob(
job, query, store, DynamoDBKey.class, VLongWritable.class, VerifyMapper.class, true);
job.getConfiguration().setBoolean("mapred.map.tasks.speculative.execution", false);
job.setReducerClass(VerifyReducer.class);
job.setOutputFormatClass(TextOutputFormat.class);
TextOutputFormat.setOutputPath(job, outputDir);
store.close();
job.submit();
}
@Override
protected void setup(Context context) throws IOException, InterruptedException {
super.setup(context);
String[] entries = context.getConfiguration().getStrings("goraci.verify.flushed");
if (entries != null && entries.length > 0) {
flushed = new HashMap<Utf8, Long>();
for (String entry : entries) {
String[] kv = entry.split(":");
flushed.put(new Utf8(kv[0]), Long.parseLong(kv[1]));
}
}
}