Is it necessary to run the H2RDF+ code on a cluster?
I am running H2RDF+ on a single node hadoop and hbase (pseudo-distributed system) and I am getting error while loading the triples.
WARN client.HConnectionManager$HConnectionImplementation: Encountered problems when prefetch META table:
org.apache.hadoop.hbase.TableNotFoundException: Cannot find row in .META. for table: Lubm_Index, row=Lubm_Index,,99999999999999
at org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:164)
at org.apache.hadoop.hbase.client.MetaScanner.access$000(MetaScanner.java:54)
at org.apache.hadoop.hbase.client.MetaScanner$1.connect(MetaScanner.java:133)
at org.apache.hadoop.hbase.client.MetaScanner$1.connect(MetaScanner.java:130)
at org.apache.hadoop.hbase.client.HConnectionManager.execute(HConnectionManager.java:383)
at org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:130)
at org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:105)
at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.prefetchRegionCache(HConnectionManager.java:947)
at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegionInMeta(HConnectionManager.java:1002)
at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:889)
at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:846)
at org.apache.hadoop.hbase.client.HTable.finishSetup(HTable.java:234)
at org.apache.hadoop.hbase.client.HTable.(HTable.java:174)
at org.apache.hadoop.hbase.client.HTable.(HTable.java:133)
at gr.ntua.h2rdf.loadTriples.IndexTranslator.(IndexTranslator.java:25)
at gr.ntua.h2rdf.loadTriples.TranslateAndImport.createSubmittableJob(TranslateAndImport.java:117)
at gr.ntua.h2rdf.loadTriples.TranslateAndImport.run(TranslateAndImport.java:247)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at gr.ntua.h2rdf.loadTriples.LoadTriples.main(LoadTriples.java:40)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.hadoop.util.RunJar.main(RunJar.java:156)
Is it necessary to run the H2RDF+ code on a cluster?
I am running H2RDF+ on a single node hadoop and hbase (pseudo-distributed system) and I am getting error while loading the triples.
WARN client.HConnectionManager$HConnectionImplementation: Encountered problems when prefetch META table:
org.apache.hadoop.hbase.TableNotFoundException: Cannot find row in .META. for table: Lubm_Index, row=Lubm_Index,,99999999999999
at org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:164)
at org.apache.hadoop.hbase.client.MetaScanner.access$000(MetaScanner.java:54)
at org.apache.hadoop.hbase.client.MetaScanner$1.connect(MetaScanner.java:133)
at org.apache.hadoop.hbase.client.MetaScanner$1.connect(MetaScanner.java:130)
at org.apache.hadoop.hbase.client.HConnectionManager.execute(HConnectionManager.java:383)
at org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:130)
at org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:105)
at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.prefetchRegionCache(HConnectionManager.java:947)
at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegionInMeta(HConnectionManager.java:1002)
at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:889)
at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:846)
at org.apache.hadoop.hbase.client.HTable.finishSetup(HTable.java:234)
at org.apache.hadoop.hbase.client.HTable.(HTable.java:174)
at org.apache.hadoop.hbase.client.HTable.(HTable.java:133)
at gr.ntua.h2rdf.loadTriples.IndexTranslator.(IndexTranslator.java:25)
at gr.ntua.h2rdf.loadTriples.TranslateAndImport.createSubmittableJob(TranslateAndImport.java:117)
at gr.ntua.h2rdf.loadTriples.TranslateAndImport.run(TranslateAndImport.java:247)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at gr.ntua.h2rdf.loadTriples.LoadTriples.main(LoadTriples.java:40)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.hadoop.util.RunJar.main(RunJar.java:156)