December 2012
Intermediate to advanced
572 pages
13h 8m
Chinese
Content preview from HBASE技術手冊
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
叢集管理
|
487
分析日誌
在極少數情況下，有必要直接存取由各 HBase 的程序所產生的日誌檔案。它們包含混合
的訊息，其中一些會為了資訊目的而被列印出，而其他代表內部的警告或錯誤訊息。儘
管這些訊息的某些部分是暫時的，而且不意味著叢集有永久性問題的存在，而其他則描
述系統故障，並恰好在程序被強制結束前會被列印出來。
表 12-3 列出各項預設的 HBase、ZooKeeper 及 Hadoop 日誌檔案。
user
將被替換為啟動
該程序的使用者 ID，並且
hostname
是正在執行程序的主機名稱。
表 12-3 不同的伺服器類型及它們所產生的日誌檔案
伺服器類型 日誌檔案
HBase Master $HBASE_HOME/logs/hbase-<user>-master-<hostname>.log
HBase RegionServer $HBASE_HOME/logs/hbase-<user>-regionserver-<hostname>.log
ZooKeeper 只輸出控制台日誌
NameNode $HADOOP_HOME/logs/hadoop-<user>-namenode-<hostname>.log
DataNode $HADOOP_HOME/logs/hadoop-<user>-datanode-<hostname>.log
JobTracker $HADOOP_HOME/logs/hadoop-<user>-jobtracker-<hostname>.log
TaskTracker ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.