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HBase无法给用户赋权的解决方案

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HBase 无法给用户赋权,并报错。

问题背景描述:

测试环境,hdfs 被 format 过。很多基于 hdfs 的环境都受到了影响。hbase 也受到了影响。但是 hbase 在 master 启动的过程中,只要 hdfs 上有 /hbase 目录

建表之后,在赋权的时候,发现有错误

hbase(main):001:0>  user_permission
User Namespace,Table,Family,Qualifier:Permission
ERROR: DISABLED: Security features are not available
hbase(main):001:0> grant ‘test_user’, ‘RWXCA’ , ‘test_table’
ERROR: DISABLED: Security features are not available
Here is some help for this command:
Grant users specific rights.
Syntax : grant <user>, <permissions> [, <@namespace> [, <table> [, <column family> [, <column qualifier>]]]
hbase(main):002:0> hbase:acl
NoMethodError: undefined method `hbase’ for #<Object:0x2a37210>

2. 以开始以为语法有错误,不会啊,很简单的语法。经过测试几个命令发现,但凡和权限相关的命令,都失败了

百度到一些建议,需要检查参数,在确认下面几个参数都设置正确的情况下,问题依旧

hbase.master.keytab.file
hbase.master.kerberos.principal
hbase.regionserver.keytab.file
hbase.regionserver.kerberos.principal
hbase.coprocessor.master.classes
hbase.coprocessor.region.classes
hbase.security.authorization

3. 百度到以下链接,其中有介绍:

参考链接

https://community.hortonworks.com/questions/50984/security-features-not-available-in-hbase-kerberize.html
It seems your hbase:acl table is not created.
can you check hbase-site.xml at master side as well it should have:-
 <property>
<name>hbase.coprocessor.master.classes</name>
  <value>org.apache.Hadoop.hbase.security.access.AccessController</value>
  </property>
try restarting your cluster as postStartMaster step should create this table, once you are able to do scan ‘hbase:acl’ , you will not see above error “ERROR: DISABLED:Security features are not available”

4. 下面这句话,提醒了我,是不是 hbase:acl 丢失了?

try restarting your cluster as postStartMaster step should create this table, once you are able to do scan ‘hbase:acl’

5. 一检查,发现真没了

HBase 无法给用户赋权的解决方案

6. 正常的情况应该是

HBase 无法给用户赋权的解决方案

7. 问题原因找到了,开始找解决办法吧。继续百度(search 技术文档,特别怀念 google)

如何重建 hbase:acl 呢?安装过程中 hbase 并没有任何特殊设置,只要在 hdfs 上创建一个 /hbase 目录,启动 hbase master 就会自动创建需要的文件。为什么重启几次,都没有重新创建这个 acl 表呢?

查看 hbase master log,可以看到错误“The table hbase:acl does not exist in meta but has a znode. run hbck to fix inconsistencies.”通过命令 hbase hbck 检查,没有错误。问题也没有解决

2018-02-24 16:41:40,011 INFO  [testserver:16000.activeMasterManager] master.HMaster: Master has completed initialization
2018-02-24 16:41:40,016 INFO  [testserver:16000.activeMasterManager] quotas.MasterQuotaManager: Quota support disabled
2018-02-24 16:41:40,062 INFO  [testserver:16000.activeMasterManager] master.HMaster: Client=null/null create ‘hbase:acl’, {NAME => ‘l’, DATA_BLOCK_ENCODING => ‘NONE’, BLOOMFILTER => ‘NONE’, REPLICATION_SCOPE => ‘0’, COMPRESSION => ‘NONE’, VERSIONS => ‘1’, TTL => ‘FOREVER’, MIN_VERSIONS => ‘0’, CACHE_DATA_IN_L1 => ‘true’, KEEP_DELETED_CELLS => ‘FALSE’, BLOCKSIZE => ‘8192’, IN_MEMORY => ‘true’, BLOCKCACHE => ‘true’}
2018-02-24 16:41:40,200 WARN  [ProcedureExecutorThread-1] procedure.CreateTableProcedure: The table hbase:acl does not exist in meta but has a znode. run hbck to fix inconsistencies.
2018-02-24 16:41:40,202 ERROR [testserver:16000.activeMasterManager] master.HMaster: Coprocessor postStartMaster() hook failed
org.apache.hadoop.hbase.TableExistsException: hbase:acl
at org.apache.hadoop.hbase.master.procedure.CreateTableProcedure.prepareCreate(CreateTableProcedure.java:300)
at org.apache.hadoop.hbase.master.procedure.CreateTableProcedure.executeFromState(CreateTableProcedure.java:107)
at org.apache.hadoop.hbase.master.procedure.CreateTableProcedure.executeFromState(CreateTableProcedure.java:58)
at org.apache.hadoop.hbase.procedure2.StateMachineProcedure.execute(StateMachineProcedure.java:107)
at org.apache.hadoop.hbase.procedure2.Procedure.doExecute(Procedure.java:427)
at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.execProcedure(ProcedureExecutor.java:999)
at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.execLoop(ProcedureExecutor.java:803)
at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.execLoop(ProcedureExecutor.java:756)
at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.access$200(ProcedureExecutor.java:75)
at org.apache.hadoop.hbase.procedure2.ProcedureExecutor$1.run(ProcedureExecutor.java:441)
2018-02-24 16:41:40,496 INFO  [ProcedureExecutorThread-1] procedure2.ProcedureExecutor: Rolledback procedure CreateTableProcedure (table=hbase:acl) id=2 owner=hbase state=ROLLEDBACK exec-time=299msec exception=org.apache.hadoop.hbase.TableExistsException: hbase:acl
2018-02-24 16:46:05,790 INFO  [LruBlockCacheStatsExecutor] hfile.LruBlockCache: totalSize=3.24 MB, freeSize=3.08 GB, max=3.08 GB, blockCount=0, accesses=0, hits=0, hitRatio=0, cachingAccesses=0, cachingHits=0, cachingHitsRatio=0,evictions=29, evicted=0, evictedPerRun=0.0

8. 上面报错,既然已经明确说 znode 的问题,我们就去检查 zookeeper 上的情况吧。

确实看到,前面准备赋权,却失败的信息,记录在 znode 的 acl 路径下

hbase zkcli
[zk: 192.168.0.72:2181,192.168.0.73:2181,192.168.0.74:2181(CONNECTED) 3] ls /hbase
[meta-region-server, acl, backup-masters, table, draining, region-in-transition, running, table-lock, balancer, master, tokenauth, namespace, hbaseid, online-snapshot, replication, splitWAL, recovering-regions, rs, flush-table-proc]
[zk: 192.168.0.72:2181,192.168.0.73:2181,192.168.0.74:2181(CONNECTED) 4] ls /hbase/acl
[@test_user]

9. 在 zk 上删除 /hbase 的信息,然后重启 hbase 整个集群,让 hbase 自动重建 acl 表

[zk: 192.168.0.72:2181,192.168.0.73:2181,192.168.0.74:2181(CONNECTED) 6] rmr /hbase
[zk: 192.168.0.72:2181,192.168.0.73:2181,192.168.0.74:2181(CONNECTED) 7] ls /
[alert, kafka-manager-1.3.3.13, rmstore, yarn-leader-election, kafka10-dev2, livy, kafka10, kafka10-dev, dubbo, eos, alert_leader, election, DP, hadoop-ha, zookeeper, leader, user]
[zk: 192.168.0.72:2181,192.168.0.73:2181,192.168.0.74:2181(CONNECTED) 8] [hbase@testserver ~]$ exit

10. 可以看到,文件已经回来了

[hdfs@testserver ~]$ hdfs dfs -ls /hbase/data/hbase
Found 3 items
drwxrwx—  – hbase hadoop          0 2018-02-24 17:00 /hbase/data/hbase/acl
drwxrwx—  – hbase hadoop          0 2018-02-24 16:59 /hbase/data/hbase/meta
drwxrwx—  – hbase hadoop          0 2018-02-24 17:00 /hbase/data/hbase/namespace

11.acl 表也可以查看了

hbase(main):004:0> scan ‘hbase:acl’
ROW                                                COLUMN+CELL
test_table                                        column=l:hbase, timestamp=1519463374193, value=RWXCA
test_table_01                                      column=l:hbase, timestamp=1519463409831, value=RWXCA
user_01                                          column=l:hbase, timestamp=1519463393177, value=RWXCA
3 row(s) in 0.1600 seconds

遇到问题,在理解整体架构原理的情况下,有目的,有范围的一步步检查,终归是可以解决的。

Ubuntu 14.04 下 HBase 单机和伪分布式模式安装配置  https://www.linuxidc.com/Linux/2017-04/143048.htm
Hadoop+HBase 搭建云存储总结 PDF https://www.linuxidc.com/Linux/2013-05/83844.htm
Ubuntu Server 14.04 下 Hbase 数据库安装  https://www.linuxidc.com/Linux/2016-05/131499.htm
HBase 结点之间时间不一致造成 regionserver 启动失败 https://www.linuxidc.com/Linux/2013-06/86655.htm
深入理解 HBase 架构原理 https://www.linuxidc.com/Linux/2017-01/139173.htm
Hadoop 集群安装 &HBase 实验环境搭建 https://www.linuxidc.com/Linux/2013-04/83560.htm
基于 Hadoop 集群的 HBase 集群的配置 https://www.linuxidc.com/Linux/2013-03/80815.htm‘
Hadoop 安装部署笔记之 -HBase 完全分布模式安装 https://www.linuxidc.com/Linux/2012-12/76947.htm
CentOS 6.4 下 HBase 集群安装  https://www.linuxidc.com/Linux/2016-11/137303.htm

HBase 的详细介绍 :请点这里
HBase 的下载地址 :请点这里

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