关于fdfs出现这个错误信息，Unable to borrow buffer from pool，，，，

c.g.t.fastdfs.conn.ConnectionManager     : Unable to borrow buffer from pool
com.github.tobato.fastdfs.exception.FdfsUnavailableException: 无法获取服务端连接资源：找不到可用的tracker /192.168.2.100:22122,
    at com.github.tobato.fastdfs.domain.TrackerLocator.getTrackerAddress(TrackerLocator.java:103)
    at com.github.tobato.fastdfs.conn.TrackerConnectionManager.executeFdfsTrackerCmd(TrackerConnectionManager.java:64)
    at com.github.tobato.fastdfs.service.DefaultTrackerClient.getStoreStorage(DefaultTrackerClient.java:39)
    at com.github.tobato.fastdfs.service.DefaultFastFileStorageClient.uploadFile(DefaultFastFileStorageClient.java:53)
    at com.file.manage.service.util.FastDFSClient.uploadFile(FastDFSClient.java:45)
    at com.file.manage.service.controller.BaseFdfsController.uploadFile(BaseFdfsController.java:44)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)