5后添、啟動(dòng)spark愤钾，Spark Thrift Server啟動(dòng)失敗，拋出異常
問題7：jvm啟動(dòng)失敗 坎藐，報(bào)-Xloggc配置有問題
通過ambrai頁面为牍，將啟動(dòng)的組件對(duì)應(yīng)的config—>Advanced的env進(jìn)行修改，去除掉-Xloggc配置岩馍。
6碉咆、連接hive失敗
ExecutionFailed: Execution of '! beeline -u'jdbc:hive2://c5-ibmpower-sv011:10015/default'
7、時(shí)鐘同步
添加定時(shí)任務(wù)
crontab -e
*/10 * * * * /usr/sbin/ntpdate 10.19.244.52
8兼雄、
The reported blocks 0 needs additional 42blocks to reach the threshold 0.9900 of total blocks 42.
The number of live datanodes 3 has reachedthe minimum number 0. Safe mode will be turned off automatically once thethresholds have been reached.
步驟1執(zhí)行命令退出安全模式：
先切換到hdfs：su –hdfs
再執(zhí)行：hdfs dfsadmin -safemode leave
步驟2執(zhí)行健康檢查吟逝，刪除損壞掉的block。hdfs fsck? /? -delete
9赦肋、
Permission denied: user=root,access=READ_EXECUTE, inode="/app-logs/hive":hive:hadoop:drwxrwx---
Sudo –u hdfs hdfs fsck /
10、
org.apache.hadoop.hbase.util.FileSystemVersionException:HBase file layout needs to be upgraded. You have version null and I wantversion 8. Consult http://hbase.apache.org/book.html for further informationabout upgrading HBase. Is your hbase.rootdir valid? If so, you may need to run'hbase hbck -fixVersionFile'.
刪除：apps/hbase/data目錄下的數(shù)據(jù)励稳，重啟hbase
