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[MINOR] Add javadoc to SchedulerConfGenerator and code clean (#1340)

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This commit is contained in:
Mathieu
2020-02-19 03:15:02 +08:00
committed by GitHub
parent 00493235f5
commit 8c6138cb01
1 changed files with 28 additions and 8 deletions
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36
hudi-utilities/src/main/java/org/apache/hudi/utilities/deltastreamer/SchedulerConfGenerator.java
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@@ -44,6 +44,7 @@ public class SchedulerConfGenerator {
public static final String DELTASYNC_POOL_NAME = "hoodiedeltasync";
public static final String COMPACT_POOL_NAME = "hoodiecompact";
public static final String SPARK_SCHEDULER_MODE_KEY = "spark.scheduler.mode";
public static final String SPARK_SCHEDULER_FAIR_MODE = "FAIR";
public static final String SPARK_SCHEDULER_ALLOCATION_FILE_KEY = "spark.scheduler.allocation.file";
private static final String SPARK_SCHEDULING_PATTERN =
@@ -52,36 +53,55 @@ public class SchedulerConfGenerator {
+ " </pool>\n <pool name=\"%s\">\n <schedulingMode>%s</schedulingMode>\n"
+ " <weight>%s</weight>\n <minShare>%s</minShare>\n </pool>\n</allocations>";
/**
* Helper to generate spark scheduling configs in XML format with input params.
*
* @param deltaSyncWeight Scheduling weight for delta sync
* @param compactionWeight Scheduling weight for compaction
* @param deltaSyncMinShare Minshare for delta sync
* @param compactionMinShare Minshare for compaction
* @return Spark scheduling configs
*/
private static String generateConfig(Integer deltaSyncWeight, Integer compactionWeight, Integer deltaSyncMinShare,
Integer compactionMinShare) {
return String.format(SPARK_SCHEDULING_PATTERN, DELTASYNC_POOL_NAME, "FAIR", deltaSyncWeight.toString(),
deltaSyncMinShare.toString(), COMPACT_POOL_NAME, "FAIR", compactionWeight.toString(),
compactionMinShare.toString());
return String.format(SPARK_SCHEDULING_PATTERN, DELTASYNC_POOL_NAME, SPARK_SCHEDULER_FAIR_MODE,
deltaSyncWeight.toString(), deltaSyncMinShare.toString(), COMPACT_POOL_NAME, SPARK_SCHEDULER_FAIR_MODE,
compactionWeight.toString(), compactionMinShare.toString());
}
/**
* Helper to set Spark Scheduling Configs dynamically.
*
* @param cfg Config
* @param cfg Config for HoodieDeltaStreamer
*/
public static Map<String, String> getSparkSchedulingConfigs(HoodieDeltaStreamer.Config cfg) throws Exception {
scala.Option<String> scheduleModeKeyOption = new SparkConf().getOption(SPARK_SCHEDULER_MODE_KEY);
final Option<String> sparkSchedulerMode =
scheduleModeKeyOption.isDefined() ? Option.of(scheduleModeKeyOption.get()) : Option.empty();
Map<String, String> additionalSparkConfigs = new HashMap<>();
if (sparkSchedulerMode.isPresent() && "FAIR".equals(sparkSchedulerMode.get()) && cfg.continuousMode
&& cfg.tableType.equals(HoodieTableType.MERGE_ON_READ.name())) {
Map<String, String> additionalSparkConfigs = new HashMap<>(1);
if (sparkSchedulerMode.isPresent() && SPARK_SCHEDULER_FAIR_MODE.equals(sparkSchedulerMode.get())
&& cfg.continuousMode && cfg.tableType.equals(HoodieTableType.MERGE_ON_READ.name())) {
String sparkSchedulingConfFile = generateAndStoreConfig(cfg.deltaSyncSchedulingWeight,
cfg.compactSchedulingWeight, cfg.deltaSyncSchedulingMinShare, cfg.compactSchedulingMinShare);
additionalSparkConfigs.put(SPARK_SCHEDULER_ALLOCATION_FILE_KEY, sparkSchedulingConfFile);
} else {
LOG.warn("Job Scheduling Configs will not be in effect as spark.scheduler.mode "
+ "is not set to FAIR at instatiation time. Continuing without scheduling configs");
+ "is not set to FAIR at instantiation time. Continuing without scheduling configs");
}
return additionalSparkConfigs;
}
/**
* Generate spark scheduling configs and store it to a randomly generated tmp file.
*
* @param deltaSyncWeight Scheduling weight for delta sync
* @param compactionWeight Scheduling weight for compaction
* @param deltaSyncMinShare Minshare for delta sync
* @param compactionMinShare Minshare for compaction
* @return Return the absolute path of the tmp file which stores the spark schedule configs
* @throws IOException Throws an IOException when write configs to file failed
*/
private static String generateAndStoreConfig(Integer deltaSyncWeight, Integer compactionWeight,
Integer deltaSyncMinShare, Integer compactionMinShare) throws IOException {
File tempConfigFile = File.createTempFile(UUID.randomUUID().toString(), ".xml");