[HBASE-16622] Fix some issues with the HBase reference guide

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.0.0
• Component/s: documentation
• Hadoop Flags: Reviewed
• Assignee: alexxiyang
• Reporter: alexxiyang
• Created: 13/Sep/16 01:12
• Updated: 12/Oct/16 05:11
• Resolved: 11/Oct/16 22:17

Description

1.

if (admin.tableExists(tableName)) {
        System.out.println("Table does not exist.");
        System.exit(-1);
      }

This should be

if (!admin.tableExists(tableName)) {

2.
SNAPPY is not suitable for begginer. They may get exceptions like

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)

So the code below

table.addFamily(new HColumnDescriptor(CF_DEFAULT).setCompressionType(Algorithm.SNAPPY));

it better to change into

table.addFamily(new HColumnDescriptor(CF_DEFAULT).setCompressionType(Algorithm.NONE));

3.
Before modify column family , get the table from connection
Change

HTableDescriptor table = new HTableDescriptor(tableName);

into

Table table = connection.getTable(TableName.valueOf(tablename));

4.
In 143.1.1. Code Formatting
it just said

Still in Preferences, click . Be sure the following options are selected:Apache HBase ™ Reference Guide

But nothing after click. It should be Java->Editor->Save Actions

Issue Links

• duplicates: HBASE-16628 Apache HBase ™ Reference Guide: 143.1.1. Code Formatting: miss the location of preference item