sparrowzoo opened a new issue #1549:
URL: https://github.com/apache/shardingsphere-elasticjob/issues/1549
public void shardingIfNecessary() {
List<JobInstance> availableJobInstances =
instanceService.getAvailableJobInstances();
if (!isNeedSharding() || availableJobInstances.isEmpty()) {
return;
}
if (!leaderService.isLeaderUntilBlock()) {
//分片确认已经结束
blockUntilShardingCompleted();
return;
}
//等待所有任务节点结束/running 临时节点(存在假死的可能)
waitingOtherShardingItemCompleted();
LiteJobConfiguration liteJobConfig = configService.load(false);
int shardingTotalCount =
liteJobConfig.getTypeConfig().getCoreConfig().getShardingTotalCount();
log.debug("Job '{}' sharding begin.", jobName);
jobNodeStorage.fillEphemeralJobNode(ShardingNode.PROCESSING, "");
resetShardingInfo(shardingTotalCount);
JobShardingStrategy jobShardingStrategy =
JobShardingStrategyFactory.getStrategy(liteJobConfig.getJobShardingStrategyClass());
jobNodeStorage.executeInTransaction(new
PersistShardingInfoTransactionExecutionCallback(jobShardingStrategy.sharding(availableJobInstances,
jobName, shardingTotalCount)));
log.debug("Job '{}' sharding complete.", jobName);
}
private void waitingOtherShardingItemCompleted() {
while (executionService.hasRunningItems()) {
log.debug("Job '{}' sleep short time until other job
completed.", jobName);
BlockUtils.waitingShortTime();
}
}
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