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Yu Li updated HBASE-16183: -------------------------- Assignee: Yu Li (was: Xiang Li) Temporarily assigned to myself to attach a patch according to the description > Correct errors in example program of coprocessor in Ref Guide > ------------------------------------------------------------- > > Key: HBASE-16183 > URL: https://issues.apache.org/jira/browse/HBASE-16183 > Project: HBase > Issue Type: Bug > Components: documentation > Reporter: Xiang Li > Assignee: Yu Li > Priority: Minor > > 1. In Section 89.3.3 > change > {code} > String path = "hdfs://<namenode>:<port>/user/<hadoop-user>/coprocessor.jar"; > {code} > into > {code} > Path path = new > Path("hdfs://bdavm1506.svl.ibm.com:8020/user/hbase/coprocessor.jar"); > {code} > Reason: > The second parameter of HTableDescriptor.addCoprocessor() is > org.apache.hadoop.fs.Path, not String. > See > http://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/HTableDescriptor.html > 2. In Section 89.3.3 > change > {code} > HBaseAdmin admin = new HBaseAdmin(conf); > {code} > into > {code} > Connection connection = ConnectionFactory.createConnection(conf); > Admin admin = connection.getAdmin(); > {code} > Reason: > HBASE-12083 makes new HBaseAdmin() deprecated and the instance of Admin is > supposed to get from Connection.getAdmin() > Also see > http://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/client/HBaseAdmin.html > 3. In section 90.1 > change > {code} > public void preGetOp(final ObserverContext e, final Get get, final List > results) > {code} > into > {code} > public void preGetOp(final ObserverContext<RegionCoprocessorEnvironment> e, > final Get get, final List<Cell> results) > {code} > change > {code} > List kvs = new ArrayList(results.size()); > {code} > into > {code} > List<Cell> kvs = new ArrayList<Cell>(results.size()); > {code} > change > {code} > public RegionScanner preScannerOpen(final ObserverContext e, final Scan scan, > {code} > into > {code} > preScannerOpen(final ObserverContext<RegionCoprocessorEnvironment> e, final > Scan scan, > {code} > change > {code} > public boolean postScannerNext(final ObserverContext e, final InternalScanner > s, final List results, final int limit, final boolean hasMore) throws > IOException { > {code} > into > {code} > public boolean postScannerNext(final > ObserverContext<RegionCoprocessorEnvironment> e, final InternalScanner s, > final List<Result> results, final int limit, final boolean hasMore) throws > IOException { > {code} > change > {code} > Iterator iterator = results.iterator(); > {code} > into > {code} > Iterator<Result> iterator = results.iterator(); > {code} > Reason: > Generic > 4. In section 90.1 > change > {code} > preGet(e, get, kvs); > {code} > into > {code} > super.preGetOp(e, get, kvs); > {code} > Reason: > There is not a function called preGet() provided by BaseRegionObserver or > its super class/interface. I believe we need to call preGetOp() of the super > class of RegionObserverExample here. > 5. In section 90.1 > change > {code} > kvs.add(KeyValueUtil.ensureKeyValue(c)); > {code} > into > {code} > kvs.add(c); > {code} > Reason: > KeyValueUtil.ensureKeyValue() is deprecated. > See > http://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/KeyValueUtil.html > and https://issues.apache.org/jira/browse/HBASE-12079 -- This message was sent by Atlassian JIRA (v6.3.4#6332)