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https://issues.apache.org/jira/browse/HBASE-18197?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16095215#comment-16095215
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Chia-Ping Tsai commented on HBASE-18197:
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{quote}
After job.waitForCompletion() is called, there may be some error log(s).
Should the exit value be changed to 1 in that case ?
{quote}
If there are some errors, the return value "isJobSuccessful" is false. The exit
value will be 1 in that case. Do I misunderstand some things?
> import.java, job output is printing two times.
> ----------------------------------------------
>
> Key: HBASE-18197
> URL: https://issues.apache.org/jira/browse/HBASE-18197
> Project: HBase
> Issue Type: Bug
> Components: hbase
> Affects Versions: 1.0.2, 1.2.0, 1.4.0
> Reporter: Chandra Sekhar
> Assignee: Jan Hentschel
> Priority: Trivial
> Attachments: HBASE-18197.branch-1.0.001.patch,
> HBASE-18197.branch-1.0.001.patch, HBASE-18197.branch-1.2.001.patch,
> HBASE-18197.branch-1.2.001.patch, HBASE-18197.branch-1.2.002.patch
>
>
> import.java, job output is printing two times.
> {quote}
> after job completed, job.waitForCompletion(true) is calling two times.
> {quote}
> {code}
> Job job = createSubmittableJob(conf, otherArgs);
> boolean isJobSuccessful = job.waitForCompletion(true);
> if(isJobSuccessful){
> // Flush all the regions of the table
> flushRegionsIfNecessary(conf);
> }
> long inputRecords =
> job.getCounters().findCounter(TaskCounter.MAP_INPUT_RECORDS).getValue();
> long outputRecords =
> job.getCounters().findCounter(TaskCounter.MAP_OUTPUT_RECORDS).getValue();
> if (outputRecords < inputRecords) {
> System.err.println("Warning, not all records were imported (maybe
> filtered out).");
> if (outputRecords == 0) {
> System.err.println("If the data was exported from HBase 0.94 "+
> "consider using -Dhbase.import.version=0.94.");
> }
> }
> System.exit(job.waitForCompletion(true) ? 0 : 1);
> {code}
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