UNIFFLE-Coordinator
标题 | 指标名称 | 指标单位 | 指标含义 |
Shuffle Server 数量 | total_server_num | Count | 注册到 Coordinator 的 Shuffle Server 数量 |
| exclude_server_num | Count | 在 exclude 文件列表的 ShuffleServer 数量 |
| unhealthy_server_num | Count | 不健康 Shuffle Server 的数量 |
App 数量 | running_app_num | Count | 注册到 Coordinator 的运行中的 application 的数量 |
| total_app_num | Count | 总的 application 数量 |
请求 | total_access_request | Count | 总请求数量 |
| total_candidates_denied_request | Count | 不在候选 accessId 列表导致拒绝服务的请求数 |
| total_load_denied_request | Count | 由于 ShuffleServer 内存负载太高导致拒绝服务的请求数 |
| total_quota_denied_request | Count | 用户级别 Application quota 数量控制导致拒绝服务的请求数 |
| total_banned_denied_request | Count | 包含在禁止 Id 列表内导致拒绝服务的请求数 |
gRPC 线程池 | active_threads | Count | grpc 线程池活跃线程数量 |
| blocking_queue_size | Count | grpc 线程池队列中排队任务数 |
gRPC 连接 | grpc_server_connection_number | Count | gRPC 当前连接数 |
gRPC请求数量 | grpc_open | Count | open的gRPC请求数 |
| grpc_total | Count | 总的gRPC请求数 |
| grpc_heartbeat | Count | 处理中的heartbeat gRPC请求数 |
| grpc_get_shuffle_assignments_total | Count | 总的get_shuffle_assignments的gRPC请求数 |
| grpc_get_shuffle_assignments | Count | 处理中的get_shuffle_assignments的gRPC请求数 |
| grpc_heartbeat_total | Count | 总的heartbeat gRPC请求数 |
| execution_less_than_1s_rpc_count | Count | 全部rpc执行耗时小于1s的数量 |
| heartbeat_rpc_count | Count | rpc请求的总数 |
| less_than_1s_heartbeat_rpc_cnt | Count | heartbeat rpc执行耗时小于1s的数量 |
CPU利用率 | ProcessCpuLoad | % | CPU利用率 |
GC次数 | YGC | Count | Young GC 次数 |
| FGC | Count | Full GC 次数 |
GC时间 | FGCT | s | Full GC 消耗时间 |
| GCT | s | 垃圾回收时间消耗 |
| YGCT | s | Young GC 消耗时间 |
内存区域占比 | S0 | % | Survivor 0区内存使用占比 |
| E | % | Eden 区内存使用占比 |
| CCS | % | Compressed class space 区内存使用占比 |
| S1 | % | Survivor 1区内存使用占比 |
| O | % | Old 区内存使用占比 |
| M | % | Metaspace 区内存使用占比 |
JVM内存 | MemHeapUsedM | MBytes | 已使用的堆内存 |
| MemNonHeapUsedM | MBytes | 已使用的堆外内存 |
| MemHeapCommittedM | MBytes | 已提交的堆内存 |
| MemNonHeapCommittedM | MBytes | 已提交的堆外内存 |
| MemHeapMaxM | MBytes | 最大堆内存 |
| MemHeapInitM | MBytes | 初始堆内存 |
| MemNonHeapInitM | MBytes | 初始堆外内存 |
文件描述符数 | MaxFileDescriptorCount | Count | 最大文件描述符数 |
| OpenFileDescriptorCount | Count | 打开文件描述符数 |
JVM线程数量 | PeakThreadCount | Count | 峰值线程数 |
| ThreadCount | Count | 总线程数量 |
| DaemonThreadCount | Count | Daemon线程数量 |
UNIFFLE-ShuffleServer
标题 | 指标名称 | 指标单位 | 指标含义 |
当前App个数 | app_num_with_node | Count | 当前在ShuffleServer上存储数据的 application 的数量 |
缓冲区 | allocated_buffer_size | Bytes | 已分配出来存储数据的内存量 |
| in_flush_buffer_size | Bytes | 待 flush 到磁盘的内存量 |
| used_buffer_size | Bytes | 内存用来存储 shuffle 数据的用量，上限由 rss.server.buffer.capacity 确定 |
| read_used_buffer_size | Bytes | 用来缓存 shuffle read 数据的用量，上限由 rss.server.read.buffer.capacity 确定 |
| total_expired_preAllocated_buffer_num | Count | 过期的preAllocatedBuffer个数 |
| require_buffer_count | Count | 申请preAllocatedBuffer个数 |
数据 | total_received_data | Bytes | ShuffleServer接收到的数据量 |
| total_write_data | Bytes | ShuffleServer Flush 到磁盘/远端存储的数据量 |
| total_delete_data | Bytes | 删除Application 磁盘/HDFS存储大小 |
数据删除数量 | total_delete_file_num | Count | 删除文件总数 |
Direct内存 | used_direct_memory_size | Bytes | direct memory使用大小 |
| used_by_netty | Bytes | Netty使用direct memory大小 |
| used_by_grpc_netty | Bytes | grpc_netty使用direct memory大小 |
事件 | event_queue_size | Count | 当前ShuffleServer flush 队列中的event 数量 |
| total_failed_written_event_num | Count | event 持久化失败的数量 |
| total_dropped_event_num | Count | 由于 application 不存在或者flush 超时导致event被丢掉的数量 |
Flush数量 | total_flush_file_num | Count | ShuffleServer Flush 到磁盘/远端存储的文件总数 |
Flush数量 | flush_file_num | Count | 当前正在Flush的文件个数 |
| total_write_num | Count | ShuffleServer Flush 到磁盘/远端存储的次数 |
| storage_total_write_local | Count | 写本地存储的总次数 |
| storage_retry_write_local | Count | 重试写本地存储的次数 |
| storage_failed_write_local | Count | 写本地存储失败的次数 |
| storage_success_write_local | Count | 写本地存储成功的次数 |
| local_file_event_flush_num | Count | Flush到本地存储次数 |
| hadoop_event_flush_num | Count | Flush到Hadoop次数 |
| flush_exceed_high_water_count | Count | buffer中数据量超过水位线导致Flush的次数（水位线由rss.server.memory.shuffle.highWaterMark.percentage控制） |
| flush_exceed_buffer_threshold_count | Count | buffer中数据量大小超过阈值导致Flush的次数（阈值由rss.server.single.buffer.flush.threshold控制） |
| flush_exceed_block_num_count | Count | buffer中block数超过阈值导致Flush的次数（阈值由rss.server.single.buffer.flush.blocksNumberThreshold控制） |
Flush数据量 | total_hdfs_write_data | Bytes | 写到HDFS上的数据量 |
Flush线程池 | localfile_flush_thread_pool_queue_size | Count | Flush到本地的线程池队列中排队任务数 |
| read_local_data_file_thread_num | Count | 当前读本地存储数据线程数 |
| read_local_index_file_thread_num | Count | 当前读本地存储索引线程数 |
| read_memory_data_thread_num | Count | 当前读内存数据线程数 |
| localfile_writing_thread_num | Count | Flush到本地线程数量 |
| hdfs_writing_thread_num | Count | Flush到HDFS线程数量 |
gRPC Process时延 | send_shuffle_data_latency_50 | s | grpc send_shuffle_data process 50分位时延 |
| send_shuffle_data_latency_90 | s | grpc send_shuffle_data process 90分位时延 |
| send_shuffle_data_latency_99 | s | grpc send_shuffle_data process 99分位时延 |
| send_shuffle_data_latency_sum | s | grpc send_shuffle_data process 总时延 |
| get_local_shuffle_data_latency_50 | s | grpc get_local_shuffle_data process 50分位时延 |
| get_local_shuffle_data_latency_90 | s | grpc get_local_shuffle_data process 90分位时延 |
| get_local_shuffle_data_latency_99 | s | grpc get_local_shuffle_data process 99分位时延 |
| get_local_shuffle_data_latency_sum | s | grpc get_local_shuffle_data process 总时延 |
| get_memory_shuffle_data_latency_50 | s | gRPC get_memory_shuffle_data process 50分位时延 |
| get_memory_shuffle_data_latency_90 | s | gRPC get_memory_shuffle_data process 90分位时延 |
| get_memory_shuffle_data_latency_99 | s | gRPC get_memory_shuffle_data process 99分位时延 |
| get_memory_shuffle_data_latency_sum | s | gRPC get_memory_shuffle_data process 总时延 |
| get_multipart_shuffle_res_latency_50 | s | gRPC get_shuffle_result_for_multi_part process 50分位时延 |
| get_multipart_shuffle_res_latency_90 | s | gRPC get_shuffle_result_for_multi_part process 90分位时延 |
| get_multipart_shuffle_res_latency_99 | s | gRPC get_shuffle_result_for_multi_part process 99分位时延 |
| get_multipart_shuffle_res_latency_sum | s | gRPC get_shuffle_result_for_multi_part process总时延 |
| report_shuffle_result_latency_50 | s | gRPC report_shuffle_result process 50分位时延 |
| report_shuffle_result_latency_90 | s | gRPC report_shuffle_result process 90分位时延 |
| report_shuffle_result_latency_99 | s | gRPC report_shuffle_result process 99分位时延 |
| report_shuffle_result_latency_sum | s | gRPC report_shuffle_result process 总时延 |
| get_sorted_shuffle_data_latency_50 | s | gRPC get_sorted_shuffle_data process 50分位时延 |
| get_sorted_shuffle_data_latency_90 | s | gRPC get_sorted_shuffle_data process 90分位时延 |
| get_sorted_shuffle_data_latency_99 | s | gRPC get_sorted_shuffle_data process 99分位时延 |
| get_sorted_shuffle_data_latency_sum | s | gRPC get_sorted_shuffle_data process 总时延 |
gRPC Process时延数量 | send_shuffle_data | Count | gRPC send_shuffle_data process 总数 |
| get_local_shuffle_data | Count | gRPC get_local_shuffle_data process 总数 |
| get_memory_shuffle_data | Count | gRPC get_memory_shuffle_data process 总数 |
| get_shuffle_result_for_multi_part | Count | gRPC get_shuffle_result_for_multi_part process总数 |
| report_shuffle_result | Count | gRPC report_shuffle_result process 总数 |
| get_sorted_shuffle_data | Count | gRPC get_sorted_shuffle_data process 总数 |
gRPC请求数量 | open | Count | gRPC open状态请求数 |
| send_shuffle_data_request_total | Count | netty send_shuffle_data_request总数 |
| get_local_shuffle_index_request_total | Count | netty get_local_shuffle_index_request 总数 |
| get_memory_shuffle_data_request_total | Count | netty get_memory_shuffle_data_request总数 |
| get_sorted_shuffle_data_request_total | Count | netty get_sorted_shuffle_data_request总数 |
gRPC Transport时延 | send_shuffle_data_latency_50 | s | grpc send_shuffle_data transport 50分位时延 |
| send_shuffle_data_latency_90 | s | grpc send_shuffle_data transport 90分位时延 |
| send_shuffle_data_latency_99 | s | grpc send_shuffle_data transport 99分位时延 |
| send_shuffle_data_latency_sum | s | grpc send_shuffle_data transport 总时延 |
| get_local_shuffle_data_latency_50 | s | grpc get_local_shuffle_data transport 50分位时延 |
| get_local_shuffle_data_latency_90 | s | grpc get_local_shuffle_data transport 90分位时延 |
| get_local_shuffle_data_latency_99 | s | grpc get_local_shuffle_data transport 99分位时延 |
| get_local_shuffle_data_latency_sum | s | grpc get_local_shuffle_data transport 总时延 |
| get_memory_shuffle_data_latency_50 | s | grpc get_memory_shuffle_data transport 50分位时延 |
| get_memory_shuffle_data_latency_90 | s | grpc get_memory_shuffle_data transport 90分位时延 |
| get_memory_shuffle_data_latency_99 | s | grpc get_memory_shuffle_data transport 99分位时延 |
| get_memory_shuffle_data_latency_sum | s | grpc get_memory_shuffle_data transport 总时延 |
| get_sorted_shuffle_data_latency_50 | s | grpc get_sorted_shuffle_data transport 50分位时延 |
| get_sorted_shuffle_data_latency_90 | s | grpc get_sorted_shuffle_data transport 90分位时延 |
| get_sorted_shuffle_data_latency_99 | s | grpc get_sorted_shuffle_data transport 99分位时延 |
| get_sorted_shuffle_data_latency_sum | s | grpc get_sorted_shuffle_data transport 总时延 |
gRPC Transport时延数量 | send_shuffle_data | Count | grpc send_shuffle_data transport 总数 |
| get_local_shuffle_data | Count | grpc get_local_shuffle_data transport 总数 |
| get_memory_shuffle_data | Count | grpc get_memory_shuffle_data transport 总数 |
| get_sorted_shuffle_data | Count | grpc get_sorted_shuffle_data transport 总数 |
Netty连接 | active_connection | Count | active netty连接数 |
Netty异常 | handle_exception | Count | netty handle异常数 |
Netty Process时延 | send_shuffle_data_request_latency_50 | s | netty send_shuffle_data_request process 50分位时延 |
| send_shuffle_data_request_latency_90 | s | netty send_shuffle_data_request process 90分位时延 |
| send_shuffle_data_request_latency_99 | s | netty send_shuffle_data_request process 99分位时延 |
| send_shuffle_data_request_latency_sum | s | netty send_shuffle_data_request process 总时延 |
| get_local_shuffle_data_request_latency_50 | s | netty get_local_shuffle_data_request process 50分位时延 |
| get_local_shuffle_data_request_latency_90 | s | netty get_local_shuffle_data_request process 90分位时延 |
| get_local_shuffle_data_request_latency_99 | s | netty get_local_shuffle_data_request process 99分位时延 |
| get_local_shuffle_data_request_latency_sum | s | netty get_local_shuffle_data_request process 总时延 |
| get_local_shuffle_index_request_latency_50 | s | netty get_local_shuffle_index_request process 50分位时延 |
| get_local_shuffle_index_request_latency_90 | s | netty get_local_shuffle_index_request process 90分位时延 |
| get_local_shuffle_index_request_latency_99 | s | netty get_local_shuffle_index_request process 99分位时延 |
| get_local_shuffle_index_request_latency_sum | s | netty get_local_shuffle_index_request process 总时延 |
| get_memory_shuffle_data_request_latency_50 | s | netty get_memory_shuffle_data_request process 50分位时延 |
| get_memory_shuffle_data_request_latency_90 | s | netty get_memory_shuffle_data_request process 90分位时延 |
| get_memory_shuffle_data_request_latency_99 | s | netty get_memory_shuffle_data_request process 99分位时延 |
| get_memory_shuffle_data_request_latency_sum | s | netty get_memory_shuffle_data_request process 总时延 |
| get_sorted_shuffle_data_request_latency_50 | s | netty get_sorted_shuffle_data_request process 50分位时延 |
| get_sorted_shuffle_data_request_latency_90 | s | netty get_sorted_shuffle_data_request process 90分位时延 |
| get_sorted_shuffle_data_request_latency_99 | s | netty get_sorted_shuffle_data_request process 99分位时延 |
| get_sorted_shuffle_data_request_latency_sum | s | netty get_sorted_shuffle_data_request process 总时延 |
Netty Process时延数量 | send_shuffle_data_request | Count | netty send_shuffle_data_request process 总数 |
| get_local_shuffle_data_request | Count | netty get_local_shuffle_data_request process 个数 |
| get_local_shuffle_index_request | Count | netty get_local_shuffle_index_request process 总数 |
| get_memory_shuffle_data_request | Count | netty get_memory_shuffle_data_request process 总数 |
| get_sorted_shuffle_data_request | Count | netty get_sorted_shuffle_data_request process 总数 |
Netty Transport时延 | send_shuffle_data_request_latency_50 | s | netty send_shuffle_data_request transport 50分位时延 |
| send_shuffle_data_request_latency_90 | s | netty send_shuffle_data_request transport 90分位时延 |
| send_shuffle_data_request_latency_99 | s | netty send_shuffle_data_request transport 99分位时延 |
| send_shuffle_data_request_latency_sum | s | netty send_shuffle_data_request transport 总时延 |
| get_local_shuffle_data_request_latency_50 | s | netty get_local_shuffle_data_request transport 50分位时延 |
| get_local_shuffle_data_request_latency_90 | s | netty get_local_shuffle_data_request transport 90分位时延 |
| get_local_shuffle_data_request_latency_99 | s | netty get_local_shuffle_data_request transport 99分位时延 |
| get_local_shuffle_data_request_latency_sum | s | netty get_local_shuffle_data_request transport 总时延 |
| get_local_shuffle_index_request_latency_50 | s | netty get_local_shuffle_index_request transport 50分位时延 |
| get_local_shuffle_index_request_latency_90 | s | netty get_local_shuffle_index_request transport 90分位时延 |
| get_local_shuffle_index_request_latency_99 | s | netty get_local_shuffle_index_request transport99分位时延 |
| get_local_shuffle_index_request_latency_sum | s | netty get_local_shuffle_index_request transport 总时延 |
| get_memory_shuffle_data_request_latency_50 | s | netty get_memory_shuffle_data_request transport 50分位时延 |
| get_memory_shuffle_data_request_latency_90 | s | netty get_memory_shuffle_data_request transport 90分位时延 |
| get_memory_shuffle_data_request_latency_99 | s | netty get_memory_shuffle_data_request transport 99分位时延 |
| get_memory_shuffle_data_request_latency_sum | s | netty get_memory_shuffle_data_request transport 总时延 |
| get_sorted_shuffle_data_request_latency_50 | s | netty get_sorted_shuffle_data_request transport 50分位时延 |
| get_sorted_shuffle_data_request_latency_90 | s | netty get_sorted_shuffle_data_request transport 90分位时延 |
| get_sorted_shuffle_data_request_latency_99 | s | netty get_sorted_shuffle_data_request transport 99分位时延 |
| get_sorted_shuffle_data_request_latency_sum | s | netty get_sorted_shuffle_data_request transport 总时延 |
Netty Transport时延数量 | send_shuffle_data_request | Count | netty send_shuffle_data_request transport 总数 |
| get_local_shuffle_data_request | Count | netty get_local_shuffle_data_request transport 总数 |
| get_local_shuffle_index_request | Count | netty get_local_shuffle_index_request transport 个数 |
| get_memory_shuffle_data_request | Count | netty get_memory_shuffle_data_request transport 总数 |
| get_sorted_shuffle_data_request | Count | netty get_sorted_shuffle_data_request transport 总数 |
健康状态 | is_healthy | Count | 当前节点是否健康 |
Partition数量 | partition_num_with_node | Count | 当前在ShuffleServer上存储数据的 partition 的数量 |
| total_partition_num | Count | 节点上存储 partition的数量 |
| total_huge_partition_num | Count | 节点上超大partition的总数量 |
| huge_partition_num | Count | 节点上当前超大 partition的数量 |
Pending任务 | pending_tasks_num_for_boss_group | Count | netty boss group pending任务数 |
| pending_tasks_num_for_worker_group | Count | netty worker group pending任务数 |
Read数据量 | total_read_data | Bytes | 所有 application从 ShuffleServer 中读取的数据量，包括data和index 数据 |
| total_read_local_data_file | Bytes | ShuffleServer 中读取的数据量 |
| total_read_local_index_file | Bytes | ShuffleServer 中读取的index数据量 |
| total_read_memory_data | Bytes | ShuffleServer 从内存中读取的数据量 |
| read_local_data_file_buffer_size | Bytes | 当前读本地存储数据大小 |
| read_local_index_file_buffer_size | Bytes | 当前读本地存储索引大小 |
| read_memory_data_buffer_size | Bytes | 当前读内存数据大小 |
Remove App资源数量 | total_time_count | Count | 移除APP资源总次数 |
| total_by_shuffle_ids_time_count | Count | 移除APP部分shuffleIds资源总次数 |
Remove App资源耗时 | total_time_50 | s | 移除APP资源50分位耗时 |
| total_time_90 | s | 移除APP资源90分位耗时 |
| total_time_99 | s | 移除APP资源99分位耗时 |
| total_time_sum | s | 移除APP资源总耗时 |
| total_by_shuffle_ids_time_50 | s | 移除APP部分shuffleIds资源50分位耗时 |
| total_by_shuffle_ids_time_90 | s | 移除APP部分shuffleIds资源90分位耗时 |
| total_by_shuffle_ids_time_99 | s | 移除APP部分shuffleIds资源99分位耗时 |
| total_by_shuffle_ids_time_sum | s | 移除APP部分shuffleIds资源总耗时 |
申请内存 | total_require_read_memory_num | Count | 读取数据申请的内存总次数 |
| total_require_read_memory_retry_num | Count | 读取数据申请时进行重试申请的总次数 |
| total_require_read_memory_failed_num | Count | 读取数据申请内存失败的总次数 |
Buffer申请 | total_failed_for_huge_partition | Count | shuffle client向shuffle server申请超大内存失败的数量，超大内存由 rss.server.huge-partition.size.threshold 定义 |
| total_failed_for_regular_partition | Count | shuffle client向 shuffle server申请内存存放shuffle 数据失败的数量 |
存储 | storage_used_bytes | Bytes | 存储占用大小 |
| local_storage_total_space | Bytes | 当前节点本地存储总大小 |
| local_storage_whole_disk_used_space | Bytes | 当前节点本地存储空间已使用大小 |
| local_storage_whole_disk_free_space | Bytes | 当前节点本地存储空间空闲大小 |
| local_storage_service_used_space | Bytes | 当前节点本地存储空间被本服务存储使用大小 |
存储目录 | local_storage_total_dirs_num | Count | 当前节点可用本地存储根目录数量 |
| local_storage_corrupted_dirs_num | Count | 当前节点不可用本地存储根目录数量 |
存储比例 | local_storage_used_space_ratio | % | 当前节点本地存储空间使用比例 |
App 数量 | total_app_not_found_num | Count | appNotFound个数 |
| total_app_num | Count | 节点上处理过所有application的数量 |
| total_app_with_huge_partition_num | Count | 有超大 partition的application总数量 |
| app_with_huge_partition_num | Count | 节点上拥有超大 partition的application的累加值 |
gRPC线程池 | blocking_queue_size | Count | grpc 线程池队列排队任务数 |
| server_connection_number | Count | grpc当前连接数 |
Write Block数量 | total_write_block | Count | ShuffleServer Flush 到磁盘/远端存储的Block数量 |
Write次数 | handler_write_time_summary_count | Count | ShuffleServer Flush 数据到磁盘/远端存储次数 |
Write异常 | total_write_exception | Count | Flush数据到Local/远程失败次数 |
Write线程 | total_write_handler | Count | ShuffleServer 并发 Flush 数据线程数量 |
慢Write | total_write_slow | Count | Flush数据到Local/远程慢的次数（阈值由rss.server.write.slow.threshold控制） |
Write耗时 | total_write_time | ms | ShuffleServer Flush 数据到磁盘/远端存储的耗时 |
| handler_write_time_summary_50 | ms | ShuffleServer Flush 数据到磁盘/远端存储50分位耗时 |
| handler_write_time_summary_90 | ms | ShuffleServer Flush 数据到磁盘/远端存储90分位耗时 |
| handler_write_time_summary_99 | ms | ShuffleServer Flush 数据到磁盘/远端存储99分位耗时 |
| handler_write_time_summary_sum | ms | ShuffleServer Flush 数据到磁盘/远端存储总耗时 |
| total_write_lock_duration | ms | LocalFileWrite锁总耗时 |
Process Cpu Load | ProcessCpuLoad | % | CPU利用率 |
GC count | YGC | Count | Young GC 次数 |
| FGC | Count | Full GC 次数 |
GC time | FGCT | s | Full GC 消耗时间 |
| GCT | s | 垃圾回收时间消耗 |
| YGCT | s | Young GC 消耗时间 |
Memory area percentage | S0 | % | Survivor 0区内存使用占比 |
| E | % | Eden 区内存使用占比 |
| CCS | % | Compressed class space 区内存使用占比 |
| S1 | % | Survivor 1区内存使用占比 |
| O | % | Old 区内存使用占比 |
| M | % | Metaspace 区内存使用占比 |
JVM Memory | MemHeapUsedM | MBytes | 已使用的堆内存 |
| MemNonHeapUsedM | MBytes | 已使用的堆外内存 |
| MemHeapCommittedM | MBytes | 已提交的堆内存 |
| MemNonHeapCommittedM | MBytes | 已提交的堆外内存 |
| MemHeapMaxM | MBytes | 最大堆内存 |
| MemHeapInitM | MBytes | 初始堆内存 |
| MemNonHeapInitM | MBytes | 初始堆外内存 |
File Descriptors | MaxFileDescriptorCount | Count | 最大文件描述符数 |
| OpenFileDescriptorCount | Count | 打开文件描述符数 |
JVM Threads | PeakThreadCount | Count | 峰值线程数 |
| ThreadCount | Count | 总线程数量 |
| DaemonThreadCount | Count | Daemon线程数量 |
