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https://issues.apache.org/jira/browse/PIG-2753?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13396444#comment-13396444
]
fang fang chen commented on PIG-2753:
-------------------------------------
This is caused by the steps pig get configurations:
org.apache.pig.backend.hadoop.hbase.HBaseStorage:
public void setLocation(String location, Job job) throws IOException {
job.getConfiguration().setBoolean("pig.noSplitCombination", true);
m_conf = job.getConfiguration(); //comments 1
HBaseConfiguration.addHbaseResources(m_conf); //comments 2
// Make sure the HBase, ZooKeeper, and Guava jars get shipped.
TableMapReduceUtil.addDependencyJars(job.getConfiguration(),
org.apache.hadoop.hbase.client.HTable.class,
com.google.common.collect.Lists.class,
org.apache.zookeeper.ZooKeeper.class);
String tablename = location;
if (location.startsWith("hbase://")){
tablename = location.substring(8);
}
if (m_table == null) {
comments 1: First load configuration from job.xml(here the hbase configuration
is right, i.e "hbase.zookeeper.quorum" is "node1")
comments 2: Then load from hbase configuration files(first hbase-defalt.xml,
then hbase-site.xml). Then if there is no hbase configuration in tasktracker
side, pig will load configuration from hbase-default.xml(which is include in
hbase.jar) file and overwrite original configuration read from job.xml. i.e.
"hbase.zookeeper.quorum" is "localhost" in hbase-default.xml).
> In distributed mapreduce mode, pig can not get correct hbase configuration
> --------------------------------------------------------------------------
>
> Key: PIG-2753
> URL: https://issues.apache.org/jira/browse/PIG-2753
> Project: Pig
> Issue Type: Bug
> Components: piggybank, site
> Affects Versions: 0.9.1
> Environment: OS:Red Hat Enterprise Linux Server release 5.5 (Tikanga)
>
> Reporter: fang fang chen
> Assignee: fang fang chen
>
> Hadoop/Hbase/Zookeeper/pig node distribution:
> hadoop nodes: {node1=[namenode, secondarynamenode, jobtracker],
> node2=[datanode, tasktracker]}
> hbase nodes: {node1=[master, regionserver]}
> pig nodes: {node1, node2}
> zookeeper nodes: {node1}
> Operate hbase table in node1 pig shell like:
> test = LOAD 'hbase://table' USING
> org.apache.pig.backend.hadoop.hbase.HBaseStorage( 'd:sWords','-loadKey true')
> AS (ID: bytearray , Words:chararray );
> result = FOREACH test GENERATE ID, com.pig.test(Words);
> --result = FOREACH AA GENERATE com.pig.test(Words), ID;
> --dump result;
> store result into 'table' using
> org.apache.pig.backend.hadoop.hbase.HBaseStorage('d:drools_cat');
> --store result into 'AA_10_categs' using
> org.apache.pig.backend.hadoop.hbase.HBaseStorage('d:cat');
> In tasktracker node, pig can not read hbase configuration in job.xml.
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