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From "Dima Spivak (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-16622) Fix some issues with the HBase reference guide
Date Tue, 13 Sep 2016 20:15:21 GMT

     [ https://issues.apache.org/jira/browse/HBASE-16622?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Dima Spivak updated HBASE-16622:
--------------------------------
    Status: Patch Available  (was: Open)

> Fix some issues with the HBase reference guide
> ----------------------------------------------
>
>                 Key: HBASE-16622
>                 URL: https://issues.apache.org/jira/browse/HBASE-16622
>             Project: HBase
>          Issue Type: Bug
>            Reporter: alexxiyang
>         Attachments: HBASE-16622-v0.diff
>
>
> 1. 
> {code}
> if (admin.tableExists(tableName)) {
>         System.out.println("Table does not exist.");
>         System.exit(-1);
>       }
> {code}
> This should be 
> {code}
> if (!admin.tableExists(tableName)) {
> {code}
> 2. 
> SNAPPY is not suitable for begginer. They may get exceptions like 
> {code}
> Caused by: org.apache.hadoop.hbase.ipc.RemoteWithExtrasException(org.apache.hadoop.hbase.DoNotRetryIOException):
org.apache.hadoop.hbase.DoNotRetryIOException: Compression algorithm 'snappy' previously failed
test. Set hbase.table.sanity.checks to false at conf or table descriptor if you want to bypass
sanity checks
> 	at org.apache.hadoop.hbase.master.HMaster.warnOrThrowExceptionForFailure(HMaster.java:1701)
> 	at org.apache.hadoop.hbase.master.HMaster.sanityCheckTableDescriptor(HMaster.java:1569)
> 	at org.apache.hadoop.hbase.master.HMaster.createTable(HMaster.java:1491)
> 	at org.apache.hadoop.hbase.master.MasterRpcServices.createTable(MasterRpcServices.java:462)
> 	at org.apache.hadoop.hbase.protobuf.generated.MasterProtos$MasterService$2.callBlockingMethod(MasterProtos.java:55682)
> 	at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2178)
> 	at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:112)
> 	at org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:133)
> 	at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:108)
> 	at java.lang.Thread.run(Thread.java:745)
> {code}
> So the code below
> {code}
> table.addFamily(new HColumnDescriptor(CF_DEFAULT).setCompressionType(Algorithm.SNAPPY));
> {code}
> it better to change into
> {code}
> table.addFamily(new HColumnDescriptor(CF_DEFAULT).setCompressionType(Algorithm.NONE));
> {code}
> 3.
> Before modify column family , get the table from connection
> Change
> {code}
> HTableDescriptor table = new HTableDescriptor(tableName);
> {code}
> into
> {code}
> Table table = connection.getTable(TableName.valueOf(tablename));
> {code}
> 4.
> In  143.1.1. Code Formatting
> it just said
> {code}
> Still in Preferences, click . Be sure the following options are selected:Apache HBase
™ Reference Guide
> {code}
> But nothing after click. It should be Java->Editor->Save Actions



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