Changes between Version 26 and Version 27 of waue/2009/0402

Timestamp:

Apr 2, 2009, 6:18:30 PM (16 years ago)

Author:

waue

Comment:

--

waue/2009/0402

@@ -30 +30 @@
 }}}
 
+ ps：之後有介紹到 bin/hadoop namenode -upgrade ，應該要查查看與 $ bin/start-dfs.sh -upgrade 有何不同
+
  * namenode管理網頁會出現升級狀態
 
+
+
 == 退回 ==
 
@@ -44 +48 @@
 $ bin/start-dfs.sh -rollback
 }}}
-
+ ps：之後有介紹到 bin/hadoop namenode -rollback ，應該要查查看與 $ bin/start-dfs.sh -rollback 有何不同
 
 = bin/hadoop 的使用者用法 =
@@ -245 +249 @@
 
 == daemonlog ==
+ * 不太知道用法？？
 
 {{{
@@ -250 +255 @@
 
 Connecting to http://gm1.nchc.org.tw:50070/logLevel?log=dfshealth.jsp
-
 Submitted Log Name: dfshealth.jsp
-
 Log Class: org.apache.commons.logging.impl.Log4JLogger
-
 Effective level: INFO
 }}}
-== datanode ==
 
 == dfsadmin ==
-
-== jobtracker  ==
+=== -report ===
+ * 呈現報告
+{{{
+$ bin/hadoop dfsadmin -report
+}}}
+
+=== -safemode ===
+ || enter || leave || get || wait ||
+{{{
+$ bin/hadoop dfsadmin enter
+$ bin/hadoop dfsadmin -safemode leave
+}}}
+
+=== -refreshNodes ===
+ * 更新Namenode 需要退出或加入的Datanode 的清單
+{{{
+$ bin/hadoop dfsadmin -refreshNodes
+}}}
+
+=== -finalizeUpgrade ===
+ * 終結升級程序
+
+=== -upgradeProgress ===
+
+ || status || details || force ||
+ || 升級狀態 || 狀態的細節 || 強制升級操作進行 ||
+
+=== -setQuota ===
+ * 設定配額，數字代表個數 （如：我上傳了一個2個block的檔案可以上傳，但我上傳兩個檔案很小的檔上去卻不行）
+{{{
+$ bin/hadoop dfs -mkdir quota
+$ bin/hadoop dfsadmin -setQuota 2 quota
+$ bin/hadoop dfs -put ../conf/hadoop-env.sh quota/
+$ bin/hadoop dfs -put ../conf/hadoop-site.xml quota/
+
+put: org.apache.hadoop.dfs.QuotaExceededException: The quota of /user/waue/quota is exceeded: quota=2 count=3
+}}}
+
+ === -clrQuota ===
+ * 清除之前設定的配額
+{{{
+$ bin/hadoop dfsadmin -clrQuota quota/
+}}}
 
 == namenode  == 
-
+ * hadoop namenode [-format] | [-upgrade] | [-rollback] | [-finalize] | [-importCheckpoint]
 == secondarynamenode ==
-
-== tasktracker ==
+ * 用法：hadoop secondarynamenode [-checkpoint [force]] | [-geteditsize]
+
+== tasktracker、datanode ==
  * 不可直接下 bin/hadoop tasktracker 這個指令，下此指令的節點 tasktracker:50060 網頁會出現錯誤訊息