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From "Sebastian Nagel (JIRA)" <>
Subject [jira] [Commented] (NUTCH-2706) -addBinaryContent flag can cause "String length must be a multiple of four" error in IndexingJob
Date Fri, 03 May 2019 21:24:00 GMT


Sebastian Nagel commented on NUTCH-2706:

Hi [~pemanuel], I was able to reproduce the issue and also locate the reason: in older versions
of the commons-codec library the method [encodeBase64String(...)|]
returns a chunked string (see the [implementation in version 1.4|]).
Even recent released of Hadoop 2.x ship with 1.4, Hadoop 3.1.0 and upwards (see HADOOP-15054)
uses 1.11 which is the same version Nutch depends on. Only in (pseudo)distributed mode the
Hadoop-provided dependency is used. Thanks for this hint, that was the key to locate the reason.

> -addBinaryContent flag can cause "String length must be a multiple of four" error in
> ------------------------------------------------------------------------------------------------
>                 Key: NUTCH-2706
>                 URL:
>             Project: Nutch
>          Issue Type: Bug
>          Components: indexer
>    Affects Versions: 1.15
>         Environment: Solr:7.3.1
> Nutch: 1.15
>            Reporter: Prajeeth Emanuel
>            Priority: Major
> When using the following crawling command:
> bin/crawl -i -s /user/xxxx/seed /user/xxxx/test-crawl-8 3 
> with the index command in the crawl script with -addBinaryContent and -base64.
> The error I get is:
> 2019-04-04 04:10:43,702 svnNumber= clientHw="" userId="" actionKpi="" [main] WARN org.apache.hadoop.mapred.YarnChild
- Exception running child : org.apache.solr.client.solrj.impl.HttpSolrClient$RemoteSolrException: ERROR:
[doc=73ad5e05e49054efa258e7c54ae9b9ee] Error adding field 'binaryContent'='PCFET0NUWVBFIGh0bWw+DQo8aHRtbCBsYW5nPSJlbiI+DQo8aGVhZD4NCgk8bWV0YSBodHRwLWVx...
> ...
> msg=String length must be a multiple of four. at org.apache.solr.client.solrj.impl.HttpSolrClient.executeMethod(
at  at org.apache.nutch.indexer.IndexWriters.commit( at org.apache.nutch.indexer.IndexerOutputFormat$1.close(
at org.apache.hadoop.mapred.ReduceTask$NewTrackingRecordWriter.close(
at org.apache.hadoop.mapred.ReduceTask.runNewReducer( at
at org.apache.hadoop.mapred.YarnChild$ at
Method) at at
at org.apache.hadoop.mapred.YarnChild.main(
> I see this as well. Opening a new
ticket as mentioned in the comments because I have a different environment.

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