[
https://issues.apache.org/jira/browse/HBASE-16622?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
alexxiyang updated HBASE-16622:
-------------------------------
Summary: Fix some issues with the HBase reference guide (was: Apache HBase
™ Reference Guide: HBase Java API example has several errors)
> 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}
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
