Szilard Nemeth created YARN-10130:
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Summary: Do not allow output dir to be the same as input dir
Key: YARN-10130
URL: https://issues.apache.org/jira/browse/YARN-10130
Project: Hadoop YARN
Issue Type: Sub-task
Reporter: Szilard Nemeth
Assignee: Szilard Nemeth
If the input dir where fair-scheduler.xml / yarn-site.xml sits is the same as
the output dir (defined by the -o switch), the fs2cs tool overwrites the source
config files, i.e. yarn-site.xml.
Reproduce this is easy, just run fs2cs tool with this command:
{code:java}
/bin/yarn fs2cs --cluster-resource memory-mb=18044928,vcores=16
--no-terminal-rule-check -y yarn-site.xml -f fair-scheduler.xml -o .
{code}
The following (or similar) is emitted by the tool:
{code:java}
WARNING: YARN_OPTS has been replaced by HADOOP_OPTS. Using value of
YARN_OPTS.WARNING: YARN_OPTS has been replaced by HADOOP_OPTS. Using value of
YARN_OPTS.20/02/10 12:51:42 INFO converter.FSConfigToCSConfigConverter: Output
directory for yarn-site.xml and capacity-scheduler.xml is: .20/02/10 12:51:42
INFO converter.FSConfigToCSConfigConverter: Conversion rules file is not
defined, using default conversion config!20/02/10 12:51:42 ERROR
conf.Configuration: error parsing conf
yarn-site.xmlcom.ctc.wstx.exc.WstxEOFException: Unexpected EOF in prolog at
[row,col,system-id]: [1,0,"yarn-site.xml"] at
com.ctc.wstx.sr.StreamScanner.throwUnexpectedEOF(StreamScanner.java:687) at
com.ctc.wstx.sr.BasicStreamReader.handleEOF(BasicStreamReader.java:2220) at
com.ctc.wstx.sr.BasicStreamReader.nextFromProlog(BasicStreamReader.java:2126)
at com.ctc.wstx.sr.BasicStreamReader.next(BasicStreamReader.java:1181) at
org.apache.hadoop.conf.Configuration$Parser.parseNext(Configuration.java:3343)
at org.apache.hadoop.conf.Configuration$Parser.parse(Configuration.java:3137)
at org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:3030)
at org.apache.hadoop.conf.Configuration.loadResources(Configuration.java:2996)
at org.apache.hadoop.conf.Configuration.getProps(Configuration.java:2871) at
org.apache.hadoop.conf.Configuration.set(Configuration.java:1389) at
org.apache.hadoop.conf.Configuration.set(Configuration.java:1361) at
org.apache.hadoop.conf.Configuration.setBoolean(Configuration.java:1702) at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.converter.FSConfigToCSConfigConverter.createConfiguration(FSConfigToCSConfigConverter.java:166)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.converter.FSConfigToCSConfigConverter.convert(FSConfigToCSConfigConverter.java:98)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.converter.FSConfigToCSConfigArgumentHandler.parseAndConvert(FSConfigToCSConfigArgumentHandler.java:137)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.converter.FSConfigToCSConfigConverterMain.main(FSConfigToCSConfigConverterMain.java:40)20/02/10
12:51:42 ERROR converter.FSConfigToCSConfigConverterMain: Error while starting
FS configuration conversion!
{code}
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