我用hdp2.5建立了一个新的hadoop集群（包含6台机器）。安装效果很好，开始几分钟一切似乎都正常。但几分钟后，两个hbase服务停止工作：
hbase/host1.mydomain.de
hbase主进程：连接失败[errno 111]连接被拒绝到host1.mydomain.de
hbase/host6.mydomain.de
hbase regionserver进程：连接失败[errno 111]连接拒绝host6.mydomain.de
当我搜索这个问题时，我发现了以下提示：
检查并启用ntpd（安装前已启用，仍禁用）
检查并禁用防火墙（安装前已禁用，仍然禁用）
检查并禁用selinux（安装前已禁用，仍然禁用）
关键是，所有服务都是在一开始就运行的，所以上面列出的服务应该正确配置！
我可以对集群配置说：
ambari服务器主机（host1）可以通过ping访问其他所有主机，并且可以通过ssh进行无密码连接
安装的组件有hdfs、yarn、mr2、tez、hive、hbase、pig、zookeeper、ambarimetrics、knox、spark、slider
我在安装过程中保留了所有默认设置，并且忽略了以下警告：

日志文件 /var/log/hbase/hbase-hbase-master-host1.domain.de.log 包含以下代码段（ip地址被a.a.a.a/b.b.b/x.x.x/y.y.y/z.z.z黑）：

2016-11-22 18:50:53,007 INFO  [master/host1.xxx.de/xxx.xxx.xxx.xxx:16000] client.ZooKeeperRegistry: ClusterId read in ZooKeeper is null
2016-11-22 18:51:59,581 INFO  [Thread-70] hdfs.DFSClient: Exception in createBlockOutputStream
java.io.IOException: Got error, status message , ack with firstBadLink as bbb.bbb.bbb.bbb:50010
        at org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtoUtil.checkBlockOpStatus(DataTransferProtoUtil.java:140)
        at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1393)
        at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1295)
        at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:463)
2016-11-22 18:51:59,584 INFO  [Thread-70] hdfs.DFSClient: Abandoning BP-90489822-xxx.xxx.xxx.xxx-1479836232259:blk_1073741825_1001
2016-11-22 18:51:59,597 INFO  [Thread-70] hdfs.DFSClient: Excluding datanode DatanodeInfoWithStorage[bbb.bbb.bbb.bbb:50010,DS-7691d8f6-0c76-4780-9836-85f20f935dd6,DISK]
2016-11-22 18:52:33,674 INFO  [Thread-70] hdfs.DFSClient: Exception in createBlockOutputStream
java.io.IOException: Got error, status message , ack with firstBadLink as zzz.zzz.zzz.zzz:50010
        at org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtoUtil.checkBlockOpStatus(DataTransferProtoUtil.java:140)
        at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1393)
        at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1295)
        at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:463)
2016-11-22 18:52:33,675 INFO  [Thread-70] hdfs.DFSClient: Abandoning BP-90489822-xxx.xxx.xxx.xxx-1479836232259:blk_1073741837_1013
2016-11-22 18:52:33,683 INFO  [Thread-70] hdfs.DFSClient: Excluding datanode DatanodeInfoWithStorage[zzz.zzz.zzz.zzz:50010,DS-15d2586e-09a9-41ed-898d-689e15cd6596,DISK]
2016-11-22 18:52:33,771 WARN  [host1:16000.activeMasterManager] hdfs.DFSClient: Slow waitForAckedSeqno took 100584ms (threshold=30000ms)
2016-11-22 18:52:33,797 INFO  [host1:16000.activeMasterManager] util.FSUtils: Created version file at hdfs://host1.xxx.de:8020/apps/hbase/data with version=8
2016-11-22 18:52:36,820 INFO  [Thread-76] hdfs.DFSClient: Exception in createBlockOutputStream
java.io.IOException: Got error, status message , ack with firstBadLink as yyy.yyy.yyy.yyy:50010
        at org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtoUtil.checkBlockOpStatus(DataTransferProtoUtil.java:140)
        at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1393)
        at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1295)
        at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:463)
2016-11-22 18:52:36,821 INFO  [Thread-76] hdfs.DFSClient: Abandoning BP-90489822-xxx.xxx.xxx.xxx-1479836232259:blk_1073741843_1019
2016-11-22 18:52:36,828 INFO  [Thread-76] hdfs.DFSClient: Excluding datanode DatanodeInfoWithStorage[yyy.yyy.yyy.yyy:50010,DS-439b87d1-f08d-464c-b0e2-728987cd211d,DISK]
2016-11-22 18:52:37,567 INFO  [Thread-76] hdfs.DFSClient: Exception in createBlockOutputStream
java.io.IOException: Got error, status message , ack with firstBadLink as zzz.zzz.zzz.zzz:50010
        at org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtoUtil.checkBlockOpStatus(DataTransferProtoUtil.java:140)
        at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1393)
        at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1295)
        at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:463)
2016-11-22 18:52:37,567 INFO  [Thread-76] hdfs.DFSClient: Abandoning BP-90489822-xxx.xxx.xxx.xxx-1479836232259:blk_1073741845_1021
2016-11-22 18:52:37,575 INFO  [Thread-76] hdfs.DFSClient: Excluding datanode DatanodeInfoWithStorage[zzz.zzz.zzz.zzz:50010,DS-15d2586e-09a9-41ed-898d-689e15cd6596,DISK]
2016-11-22 18:52:40,589 INFO  [Thread-76] hdfs.DFSClient: Exception in createBlockOutputStream
java.io.IOException: Got error, status message , ack with firstBadLink as aaa.aaa.aaa.aaa:50010
        at org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtoUtil.checkBlockOpStatus(DataTransferProtoUtil.java:140)
        at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1393)
        at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1295)
        at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:463)
2016-11-22 18:52:40,589 INFO  [Thread-76] hdfs.DFSClient: Abandoning BP-90489822-xxx.xxx.xxx.xxx-1479836232259:blk_1073741846_1022
2016-11-22 18:52:40,593 INFO  [Thread-76] hdfs.DFSClient: Excluding datanode DatanodeInfoWithStorage[aaa.aaa.aaa.aaa:50010,DS-15ea9223-2b1b-4f86-8797-ff0e2aaa6787,DISK]
2016-11-22 18:52:40,694 INFO  [host1:16000.activeMasterManager] master.MasterFileSystem: BOOTSTRAP: creating hbase:meta region
2016-11-22 18:52:40,699 INFO  [host1:16000.activeMasterManager] regionserver.HRegion: creating HRegion hbase:meta HTD == 'hbase:meta', {TABLE_ATTRIBUTES => {IS_META => 'true', coprocessor$1 => '|org.apache.hadoop.hbase.coprocessor.Mul$
2016-11-22 18:52:43,741 INFO  [Thread-79] hdfs.DFSClient: Exception in createBlockOutputStream
java.io.IOException: Got error, status message , ack with firstBadLink as yyy.yyy.yyy.yyy:50010
        at org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtoUtil.checkBlockOpStatus(DataTransferProtoUtil.java:140)
        at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1393)
        at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1295)
        at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:463)
2016-11-22 18:52:43,742 INFO  [Thread-79] hdfs.DFSClient: Abandoning BP-90489822-xxx.xxx.xxx.xxx-1479836232259:blk_1073741848_1024
2016-11-22 18:52:43,744 INFO  [Thread-79] hdfs.DFSClient: Excluding datanode DatanodeInfoWithStorage[yyy.yyy.yyy.yyy:50010,DS-fc167096-246b-4215-b344-be786d98c472,DISK]
2016-11-22 18:52:46,760 INFO  [Thread-79] hdfs.DFSClient: Exception in createBlockOutputStream
java.io.IOException: Got error, status message , ack with firstBadLink as zzz.zzz.zzz.zzz:50010
        at org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtoUtil.checkBlockOpStatus(DataTransferProtoUtil.java:140)
        at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1393)
        at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1295)
        at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:463)
2016-11-22 18:52:46,760 INFO  [Thread-79] hdfs.DFSClient: Abandoning BP-90489822-xxx.xxx.xxx.xxx-1479836232259:blk_1073741849_1025
2016-11-22 18:52:46,766 INFO  [Thread-79] hdfs.DFSClient: Excluding datanode DatanodeInfoWithStorage[zzz.zzz.zzz.zzz:50010,DS-c1dc059d-8f0b-4971-88cc-ebc76dd8659a,DISK]

有人能告诉我为什么这两个服务在几分钟后就停止了吗？