InfluxDBWriter 多channel设置无效。

[covered]

配置内容：

"job": {
  "setting": {
    "speed": {
      "channel": **5,**
      //"record": 200,
      "bytes": -1

错误信息：

2021-02-22 08:21:00.688 [main] INFO PerfTrace - PerfTrace traceId=job_-1, isEnable=false, priority=0
2021-02-22 08:21:00.688 [main] INFO JobContainer - DataX jobContainer starts job.
2021-02-22 08:21:00.691 [main] INFO JobContainer - Set jobId = 0
2021-02-22 08:21:00.711 [job-0] INFO JobContainer - DataX Reader.Job [streamreader] do prepare work .
2021-02-22 08:21:00.711 [job-0] INFO JobContainer - DataX Writer.Job [influxdbwriter] do prepare work .
2021-02-22 08:21:10.613 [job-0] INFO JobContainer - Job set Channel-Number to 3 channels.
2021-02-22 08:21:10.614 [job-0] INFO JobContainer - DataX Reader.Job [streamreader] splits to [3] tasks.
2021-02-22 08:21:10.615 [job-0] WARN InfluxDBWriter$Job - -------------------------split() begin...
2021-02-22 08:21:10.615 [job-0] INFO JobContainer - DataX Writer.Job [influxdbwriter] splits to [1] tasks.
2021-02-22 08:21:10.620 [job-0] INFO StandAloneJobContainerCommunicator - Total 0 records, 0 bytes | Speed 0B/s, 0 records/s | Error 0 records, 0 bytes | All Task WaitWriterTime 0.000s | All Task WaitReaderTime 0.000s | Percentage 0.00%
2021-02-22 08:21:10.621 [job-0] ERROR Engine - Code:[Framework-15], Description:[DataX插件切分出错, 该问题通常是由于DataX各个插件编程错误引起，请联系DataX开发团队解决]. - Code:[Framework-15], Description:[DataX插件切分出错, 该问题通常是由于DataX各个插件编程错误引起，请联系DataX开发团队解决]. - reader切分的task数目[3]不等于writer切分的task数目[1].

代码修改：
// @OverRide
// public List split(int adviceNumber)
// {
// Configuration readerSliceConfig = super.getPluginJobConf();
// List splittedConfigs = new ArrayList<>();
// splittedConfigs.add(readerSliceConfig);
// return splittedConfigs;

    // }

    @Override
    public List<Configuration> split(int mandatoryNumber)
    {
        //修改多channel无效问题
        LOG.warn("-------------------------split [{}] begin...", mandatoryNumber);
        ArrayList<Configuration> configurations = new ArrayList<Configuration>(mandatoryNumber);
        for (int i = 0; i < mandatoryNumber; i++) {
                 configurations.add(this.originalConfig.clone());
             }
        return configurations;

    }

初步测试设置多channel后无报错。

[wgzhao]

感谢反馈并提供修复代码，已经修复