wiki:jazz/08-11-05

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Version 14 (modified by jazz, 16 years ago) (diff)
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2008-11-05

Devaraj Das 來訪 -
- 10:00-12:00 Hands-on Labs (2): "Distributed Setup of Hadoop" @ 北群多媒體
- (PM) Local Sighsee
16:00 BioImage Regular Progress Review @ 主管會議室

Deploy Hadoop with DRBL

issue: Hadoop namenode 必須跟 datanode 在同一個網段

namenode: 192.168.100.1 (DRBL Client 1)

jazz@hadoop101:~/hadoop-0.18.2$ bin/hadoop namenode
08/11/05 09:29:31 INFO dfs.NameNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting NameNode
STARTUP_MSG:   host = hadoop101/192.168.100.1
STARTUP_MSG:   args = []
STARTUP_MSG:   version = 0.18.2
STARTUP_MSG:   build = https://svn.apache.org/repos/asf/hadoop/core/branches/branch-0.18 -r 709042; compiled by 'ndaley' on Thu Oct 30 01:07:18 UTC 2008
************************************************************/
08/11/05 09:28:09 INFO metrics.RpcMetrics: Initializing RPC Metrics with hostName=NameNode, port=9000
08/11/05 09:28:09 INFO dfs.NameNode: Namenode up at: hadoop101/192.168.100.1:9000
08/11/05 09:28:09 INFO jvm.JvmMetrics: Initializing JVM Metrics with processName=NameNode, sessionId=null
08/11/05 09:28:09 INFO dfs.NameNodeMetrics: Initializing NameNodeMeterics using context object:org.apache.hadoop.metrics.spi.NullContext
08/11/05 09:28:09 INFO fs.FSNamesystem: fsOwner=jazz,jazz,dialout,cdrom,floppy,audio,video,plugdev
08/11/05 09:28:09 INFO fs.FSNamesystem: supergroup=supergroup
08/11/05 09:28:09 INFO fs.FSNamesystem: isPermissionEnabled=true
08/11/05 09:28:09 INFO dfs.FSNamesystemMetrics: Initializing FSNamesystemMeterics using context object:org.apache.hadoop.metrics.spi.NullContext
08/11/05 09:28:09 INFO fs.FSNamesystem: Registered FSNamesystemStatusMBean
08/11/05 09:28:09 INFO dfs.Storage: Number of files = 0
08/11/05 09:28:09 INFO dfs.Storage: Number of files under construction = 0
08/11/05 09:28:09 INFO dfs.Storage: Image file of size 78 loaded in 0 seconds.
08/11/05 09:28:09 INFO dfs.Storage: Edits file edits of size 4 edits # 0 loaded in 0 seconds.
08/11/05 09:28:09 INFO fs.FSNamesystem: Finished loading FSImage in 250 msecs
08/11/05 09:28:09 INFO dfs.StateChange: STATE* Leaving safe mode after 0 secs.
08/11/05 09:28:09 INFO dfs.StateChange: STATE* Network topology has 0 racks and 0 datanodes
08/11/05 09:28:09 INFO dfs.StateChange: STATE* UnderReplicatedBlocks has 0 blocks
08/11/05 09:28:10 INFO util.Credential: Checking Resource aliases
08/11/05 09:28:10 INFO http.HttpServer: Version Jetty/5.1.4
08/11/05 09:28:10 INFO util.Container: Started HttpContext[/static,/static]
08/11/05 09:28:10 INFO util.Container: Started HttpContext[/logs,/logs]
08/11/05 09:28:11 INFO util.Container: Started org.mortbay.jetty.servlet.WebApplicationHandler@1977b9b
08/11/05 09:28:11 INFO util.Container: Started WebApplicationContext[/,/]
08/11/05 09:28:11 INFO http.SocketListener: Started SocketListener on 0.0.0.0:50070
08/11/05 09:28:11 INFO util.Container: Started org.mortbay.jetty.Server@b8deef
08/11/05 09:28:11 INFO fs.FSNamesystem: Web-server up at: 0.0.0.0:50070
08/11/05 09:28:11 INFO ipc.Server: IPC Server Responder: starting
08/11/05 09:28:11 INFO ipc.Server: IPC Server listener on 9000: starting
08/11/05 09:28:11 INFO ipc.Server: IPC Server handler 0 on 9000: starting
08/11/05 09:28:11 INFO ipc.Server: IPC Server handler 1 on 9000: starting
08/11/05 09:28:11 INFO ipc.Server: IPC Server handler 2 on 9000: starting
08/11/05 09:28:11 INFO ipc.Server: IPC Server handler 3 on 9000: starting
08/11/05 09:28:11 INFO ipc.Server: IPC Server handler 4 on 9000: starting
08/11/05 09:28:11 INFO ipc.Server: IPC Server handler 5 on 9000: starting
08/11/05 09:28:11 INFO ipc.Server: IPC Server handler 6 on 9000: starting
08/11/05 09:28:11 INFO ipc.Server: IPC Server handler 7 on 9000: starting
08/11/05 09:28:11 INFO ipc.Server: IPC Server handler 8 on 9000: starting
08/11/05 09:28:11 INFO ipc.Server: IPC Server handler 9 on 9000: starting

jazz@hadoop101:~$ sudo netstat -ap
[sudo] password for jazz:
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp6       0      0 hadoop101:9000          [::]:*                  LISTEN      2404/java
tcp6       0      0 [::]:47464              [::]:*                  LISTEN      2404/java
tcp6       0      0 [::]:50070              [::]:*                  LISTEN      2404/java
Active UNIX domain sockets (servers and established)
Proto RefCnt Flags       Type       State         I-Node   PID/Program name    Path
unix  2      [ ]         STREAM     CONNECTED     6371     2404/java

datanode: 192.168.100.2 (DRBL Client 2)

jazz@hadoop102:~/hadoop-0.18.2$ bin/hadoop datanode
08/11/05 09:22:05 INFO dfs.DataNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting DataNode
STARTUP_MSG:   host = hadoop102/192.168.100.2
STARTUP_MSG:   args = []
STARTUP_MSG:   version = 0.18.2
STARTUP_MSG:   build = https://svn.apache.org/repos/asf/hadoop/core/branches/branch-0.18 -r 709042; compiled by 'ndaley' on Thu Oct 30 01:07:18 UTC 2008
************************************************************/
08/11/05 09:22:06 INFO dfs.Storage: Storage directory /tmp/hadoop-jazz/dfs/data is not formatted.
08/11/05 09:22:06 INFO dfs.Storage: Formatting ...
08/11/05 09:22:06 INFO dfs.DataNode: Registered FSDatasetStatusMBean
08/11/05 09:22:06 INFO dfs.DataNode: Opened info server at 50010
08/11/05 09:22:06 INFO dfs.DataNode: Balancing bandwith is 1048576 bytes/s
08/11/05 09:22:06 INFO util.Credential: Checking Resource aliases
08/11/05 09:22:06 INFO http.HttpServer: Version Jetty/5.1.4
08/11/05 09:22:06 INFO util.Container: Started HttpContext[/static,/static]
08/11/05 09:22:06 INFO util.Container: Started HttpContext[/logs,/logs]
08/11/05 09:22:07 INFO util.Container: Started org.mortbay.jetty.servlet.WebApplicationHandler@1bb5c09
08/11/05 09:22:07 INFO util.Container: Started WebApplicationContext[/,/]
08/11/05 09:22:07 INFO http.SocketListener: Started SocketListener on 0.0.0.0:50075
08/11/05 09:22:07 INFO util.Container: Started org.mortbay.jetty.Server@15fadcf
08/11/05 09:22:07 INFO jvm.JvmMetrics: Initializing JVM Metrics with processName=DataNode, sessionId=null
08/11/05 09:22:07 INFO metrics.RpcMetrics: Initializing RPC Metrics with hostName=DataNode, port=50020
08/11/05 09:22:07 INFO ipc.Server: IPC Server Responder: starting
08/11/05 09:22:07 INFO ipc.Server: IPC Server listener on 50020: starting
08/11/05 09:22:07 INFO ipc.Server: IPC Server handler 0 on 50020: starting
08/11/05 09:22:07 INFO ipc.Server: IPC Server handler 1 on 50020: starting
08/11/05 09:22:07 INFO dfs.DataNode: dnRegistration = DatanodeRegistration(hadoop102:50010, storageID=, infoPort=50075, ipcPort=50020)
08/11/05 09:22:07 INFO ipc.Server: IPC Server handler 2 on 50020: starting

jazz@hadoop102:~/hadoop-0.18.2/conf$ sudo netstat -ap
[sudo] password for jazz:
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp6       0      0 [::]:50020              [::]:*                  LISTEN      1935/java
tcp6       0      0 [::]:56743              [::]:*                  LISTEN      1935/java
tcp6       0      0 [::]:50010              [::]:*                  LISTEN      1935/java
tcp6       0      0 [::]:50075              [::]:*                  LISTEN      1935/java
tcp6       0      0 hadoop102:40946         hadoop101:9000          ESTABLISHED 1935/java
Active UNIX domain sockets (servers and established)
Proto RefCnt Flags       Type       State         I-Node   PID/Program name    Path
unix  2      [ ]         STREAM     CONNECTED     3945     1935/java

debian package post-install script

Q: 由於在 DRBL Server 上新增套件，有時候需要重新 re-deploy，因此如何讓 apt-get install 或 dpkg -i 之後可以自動執行某個 script 去做 re-deploy 的動作呢?
[參考] 像 localepurge 套件會在每次安裝完之後重新檢查 locale 目錄是否有多餘的語系檔案
- localepurge - Automagically remove unnecessary locale data
- localepurge 的作法是擺一個 script 到 /etc/apt/apt.conf.d/，可參考 /etc/apt/apt.conf.d/99-localepurge 1

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