Configuring Nutch 2.3 with HSQL 2.3.3 - ClassNotFoundException : org/apache/avro/ipc/ByteBufferOutputStream - hsqldb

Question

I'm getting ClassNotFoundException : org/apache/avro/ipc/ByteBufferOutputStream when I run apache Nutch with HSQLDB although I have all the avro related jar files under lib
avro-1.7.6.jar
avro-compiler-1.7.6.jar
avro-ipc-1.7.6.jar
avro-mapred-1.7.6.jar
This is what I did:
Got HSQLDB up and running
root#elephant hsqldb# sudo java -cp /home/hsqldb/hsqldb-2.3.3/hsqldb/lib/hsqldb.jar org.hsqldb.server.Server --props /home/hsqldb/hsqldb-2.3.3/hsqldb/conf/server.properties
[Server#372f7a8d]: [Thread[main,5,main]]: checkRunning(false) entered
[Server#372f7a8d]: [Thread[main,5,main]]: checkRunning(false) exited
[Server#372f7a8d]: Startup sequence initiated from main() method
[Server#372f7a8d]: Loaded properties from [/home/hsqldb/hsqldb-2.3.3/hsqldb/conf/server.properties]
[Server#372f7a8d]: Initiating startup sequence...
[Server#372f7a8d]: Server socket opened successfully in 28 ms.
[Server#372f7a8d]: Database [index=0, id=0, db=file:/home/hsqldb/hsqldb-2.3.3/hsqldb/data/nutch, alias=nutchdb] opened sucessfully in 1406 ms.
[Server#372f7a8d]: Startup sequence completed in 1438 ms.
[Server#372f7a8d]: 2015-12-26 18:30:13.841 HSQLDB server 2.3.3 is online on port 9001
[Server#372f7a8d]: To close normally, connect and execute SHUTDOWN SQL
[Server#372f7a8d]: From command line, use [Ctrl]+[C] to abort abruptly
Configured ivy/ivy.xml
uncommented below lines in ivy.xml
<dependency org="org.apache.gora" name="gora-core" rev="0.5" conf="*->default"/>
and
<dependency org="org.apache.gora" name="gora-sql" rev="0.1.1-incubating"
conf="*->default" />
uncommented the below lines conf/gora.properites
###############################
# Default SqlStore properties #
###############################
gora.sqlstore.jdbc.driver=org.hsqldb.jdbc.JDBCDriver
gora.sqlstore.jdbc.url=jdbc:hsqldb:hsql://localhost/nutchdb
gora.sqlstore.jdbc.user=sa
gora.sqlstore.jdbc.password=
Ran ant build
ant runtime
Added configuration for nutch-site.xml
root#elephant conf# cat nutch-site.xml
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!-- Put site-specific property overrides in this file. -->
<configuration>
<property>
<name>storage.data.store.class</name>
<value>org.apache.gora.sql.store.SqlStore</value>
</property>
<property>
<name>http.agent.name</name>
<value>NutchCrawler</value>
</property>
<property>
<name>http.robots.agents</name>
<value>NutchCrawler,*</value>
</property>
</configuration>
Created seed.txt under urls folder
Executed the nutch by injecting the urls
[root#elephant local]# bin/nutch inject urls/
InjectorJob: starting at 2015-12-26 19:11:24
InjectorJob: Injecting urlDir: urls
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/avro/ipc/ByteBufferOutputStream
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:259)
at org.apache.nutch.storage.StorageUtils.getDataStoreClass(StorageUtils.java:93)
at org.apache.nutch.storage.StorageUtils.createWebStore(StorageUtils.java:77)
at org.apache.nutch.crawl.InjectorJob.run(InjectorJob.java:218)
at org.apache.nutch.crawl.InjectorJob.inject(InjectorJob.java:252)
at org.apache.nutch.crawl.InjectorJob.run(InjectorJob.java:275)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at org.apache.nutch.crawl.InjectorJob.main(InjectorJob.java:284)
Caused by: java.lang.ClassNotFoundException: org.apache.avro.ipc.ByteBufferOutputStream
at java.net.URLClassLoader$1.run(URLClassLoader.java:372)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:360)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 9 more

Answer 1

Gora-sql is not supported. Due some licenses issues (if I am not wrong), it became disabled around Gora 0.2.
So I suggest you to use other storage like, for example, HBase.
How to get HBase up&running fast: read answer at https://stackoverflow.com/a/39837926/582789