[jira] [Created] (TRAFODION-1099) LP Bug: 1437384 - sqenvcom.sh. Our CLASSPATH is too big.

["Alice Chen (JIRA)" <ji...@apache.org>]

Alice Chen created TRAFODION-1099:
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             Summary: LP Bug: 1437384 - sqenvcom.sh.    Our CLASSPATH is too big.
                 Key: TRAFODION-1099
                 URL: https://issues.apache.org/jira/browse/TRAFODION-1099
             Project: Apache Trafodion
          Issue Type: Bug
          Components: sql-general
            Reporter: Guy Groulx
            Assignee: Sandhya Sundaresan
            Priority: Critical
             Fix For: 2.0-incubating


sqenvcom.sh sets up CLASSPATH for trafodion.

With HDP2.2, this CLASSPATH is huge.   On one of our system, echo $CLASSPATH | wc -l return > 13000 bytes.
I believe java/Linux truncates these variables when it's too big.
Since going to HDP 2.2, we've been hit with "class not found" error eventhough the jar is in CLASSPATH.

http://stackoverflow.com/questions/1237093/using-wildcard-for-classpath explains that we can use wildcards in CLASSPATH to reduce it.

Rules:
Use * and not *.jar.    Java assumes that * in classpath are for *.jar
When using export CLASSPATH    use quotes so that * is not expanded.   EG:    export CLASSPATH=”/usr/hdp/current/hadoop-client/lib/*:${CLASSPATH}”

We need to modify our sqenvcom.sh to use wildcards instead of putting individual jar.



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