[MAHOUT-689] runlogisti​c in Mahout 0.4 does not work

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.4
• Fix Version/s: 0.5

Environment

CENTOS 5.5 64bit with Oracle Java 1.6.0_23

• Assignee: Sean R. Owen
• Reporter: XiaoboGu
• Created: 06/May/11 12:06
• Updated: 21/May/11 03:18
• Resolved: 06/May/11 12:27

Description

[gpadmin@lixsvr1 mahtest]$ mahout trainlogistic --input donut.csv --output ./model --target color --categories 2 --predictors x y --types numeric --features 20 --passes 100 --rate 50
Running on hadoop, using HADOOP_HOME=/usr/local/hadoop
No HADOOP_CONF_DIR set, using /usr/local/hadoop/conf
20
color ~ -0.149*Intercept Term + -0.701*x + -0.427*y
Intercept Term -0.14885
x -0.70136
y -0.42740
0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 -0.148846792 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 -0.427403872 -0.701362221 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000
11/05/06 15:56:48 INFO driver.MahoutDriver: Program took 2014 ms
[gpadmin@lixsvr1 mahtest]$ mahout runlogistic --input donut.csv --model ./model --auc --confusion
Running on hadoop, using HADOOP_HOME=/usr/local/hadoop
No HADOOP_CONF_DIR set, using /usr/local/hadoop/conf
Exception in thread "main" com.google.gson.JsonParseException: Failed parsing JSON source: java.io.FileReader@2c19e15c to Json
at com.google.gson.JsonParser.parse(JsonParser.java:57)
at com.google.gson.Gson.fromJson(Gson.java:376)
at com.google.gson.Gson.fromJson(Gson.java:352)
at org.apache.mahout.classifier.sgd.LogisticModelParameters.loadFrom(LogisticModelParameters.java:141)
at org.apache.mahout.classifier.sgd.LogisticModelParameters.loadFrom(LogisticModelParameters.java:154)
at org.apache.mahout.classifier.sgd.RunLogistic.main(RunLogistic.java:56)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)
at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)
at org.apache.mahout.driver.MahoutDriver.main(MahoutDriver.java:184)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.util.RunJar.main(RunJar.java:186)
Caused by: com.google.gson.ParseException: Encountered "\"updateCounts\"" at line 8, column 51.
Was expecting one of:
"}" ...
"," ...

at com.google.gson.JsonParserJavacc.generateParseException(JsonParserJavacc.java:658)
at com.google.gson.JsonParserJavacc.jj_consume_token(JsonParserJavacc.java:540)
at com.google.gson.JsonParserJavacc.JsonObject(JsonParserJavacc.java:59)
at com.google.gson.JsonParserJavacc.JsonValue(JsonParserJavacc.java:169)
at com.google.gson.JsonParserJavacc.Pair(JsonParserJavacc.java:89)
at com.google.gson.JsonParserJavacc.Members(JsonParserJavacc.java:72)
at com.google.gson.JsonParserJavacc.Members(JsonParserJavacc.java:76)
at com.google.gson.JsonParserJavacc.Members(JsonParserJavacc.java:76)
at com.google.gson.JsonParserJavacc.Members(JsonParserJavacc.java:76)
at com.google.gson.JsonParserJavacc.Members(JsonParserJavacc.java:76)
at com.google.gson.JsonParserJavacc.Members(JsonParserJavacc.java:76)
at com.google.gson.JsonParserJavacc.Members(JsonParserJavacc.java:76)
at com.google.gson.JsonParserJavacc.Members(JsonParserJavacc.java:76)
at com.google.gson.JsonParserJavacc.Members(JsonParserJavacc.java:76)
at com.google.gson.JsonParserJavacc.JsonObject(JsonParserJavacc.java:53)
at com.google.gson.JsonParserJavacc.parse(JsonParserJavacc.java:19)
at com.google.gson.JsonParser.parse(JsonParser.java:53)
... 17 more
[gpadmin@lixsvr1 mahtest]$