[
https://issues.apache.org/jira/browse/NUTCH-3180?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Luca Foppiano updated NUTCH-3180:
---------------------------------
Description:
While running the last crawl we hit a small bug in the URLCleaner which
crawshed while encountering an invalid URL:
[http://techsauce/%20global%20summit%202023%20%E0%B9%80%E0%B8%9B%E0%B9%87%E0%B8%99%E0%B8%87%E0%B8%B2%E0%B8%99%E0%B8%9B%E0%B8%A3%E0%B8%B0%E0%B8%8A%E0%B8%B8%E0%B8%A1%E0%B8%A3%E0%B8%B0%E0%B8%94%E0%B8%B1%E0%B8%9A%E0%B9%82%E0%B8%A5%E0%B8%81%E0%B8%97%E0%B8%B5%E0%B9%88%E0%B8%88%E0%B8%B1%E0%B8%94%E0%B8%82%E0%B8%B6%E0%B9%89%E0%B8%99%E0%B9%83%E0%B8%99%E0%B8%A7%E0%B8%B1%E0%B8%99%E0%B8%97%E0%B8%B5%E0%B9%88%2016%E2%80%9317%20%E0%B8%AA%E0%B8%B4%E0%B8%87%E0%B8%AB%E0%B8%B2%E0%B8%84%E0%B8%A1%202566%20%E0%B8%93%20%E0%B8%A8%E0%B8%B9%E0%B8%99%E0%B8%A2%E0%B9%8C%E0%B8%9B%E0%B8%A3%E0%B8%B0%E0%B8%8A%E0%B8%B8%E0%B8%A1%E0%B9%81%E0%B8%AB%E0%B9%88%E0%B8%87%E0%B8%8A%E0%B8%B2%E0%B8%95%E0%B8%B4%E0%B8%AA%E0%B8%B4%E0%B8%A3%E0%B8%B4%E0%B8%81%E0%B8%B4%E0%B8%95%E0%B8%B4%E0%B9%8C%20%E0%B8%81%E0%B8%A3%E0%B8%B8%E0%B8%87%E0%B9%80%E0%B8%97%E0%B8%9E%E0%B8%AF%20%E0%B8%87%E0%B8%B2%E0%B8%99%E0%B8%99%E0%B8%B5%E0%B9%89%E0%B8%94%E0%B8%B6%E0%B8%87%E0%B8%94%E0%B8%B9%E0%B8%94%E0%B8%9C%E0%B8%B9%E0%B9%89%E0%B9%80%E0%B8%82%E0%B9%89%E0%B8%B2%E0%B8%A3%E0%B9%88%E0%B8%A7%E0%B8%A1%E0%B8%87%E0%B8%B2%E0%B8%99%E0%B8%88%E0%B8%B2%E0%B8%81%E0%B8%81%E0%B8%A7%E0%B9%88%E0%B8%B2%2050%20%E0%B8%9B%E0%B8%A3%E0%B8%B0%E0%B9%80%E0%B8%97%E0%B8%A8%20%E0%B9%82%E0%B8%94%E0%B8%A2%E0%B8%A1%E0%B8%B5%E0%B8%9C%E0%B8%B9%E0%B9%89%E0%B9%80%E0%B8%82%E0%B9%89%E0%B8%B2%E0%B8%A3%E0%B9%88%E0%B8%A7%E0%B8%A1%E0%B8%87%E0%B8%B2%E0%B8%99%E0%B8%A1%E0%B8%B2%E0%B8%81%E0%B8%81%E0%B8%A7%E0%B9%88%E0%B8%B2%2016,000%20%E0%B8%84%E0%B8%99%20%E0%B9%81%E0%B8%A5%E0%B8%B0%E0%B8%A1%E0%B8%B5%E0%B8%9C%E0%B8%B9%E0%B9%89%E0%B9%80%E0%B8%82%E0%B9%89%E0%B8%B2%E0%B8%A3%E0%B9%88%E0%B8%A7%E0%B8%A1%E0%B8%88%E0%B8%B2%E0%B8%81%E0%B8%99%E0%B8%B2%E0%B8%99%E0%B8%B2%E0%B8%9B%E0%B8%A3%E0%B8%B0%E0%B9%80%E0%B8%97%E0%B8%A8%E0%B8%A1%E0%B8%B2%E0%B8%81%E0%B8%96%E0%B8%B6%E0%B8%87%2040%25%20%20%E0%B9%83%E0%B8%99%E0%B8%81%E0%B8%B2%E0%B8%A3%E0%B8%88%E0%B8%B1%E0%B8%94%E0%B8%87%E0%B8%B2%E0%B8%99%E0%B8%84%E0%B8%A3%E0%B8%B1%E0%B9%89%E0%B8%87%E0%B8%99%E0%B8%B5%E0%B9%89%20%E0%B8%A1%E0%B8%B5%E0%B8%81%E0%B8%B2%E0%B8%A3%E0%B8%99%E0%B8%B3%E0%B9%80%E0%B8%AA%E0%B8%99%E0%B8%AD%E0%B8%88%E0%B8%B2%E0%B8%81%E0%B8%9C%E0%B8%B9%E0%B9%89%E0%B8%9A%E0%B8%A3%E0%B8%A3%E0%B8%A2%E0%B8%B2%E0%B8%A2%E0%B8%8A%E0%B8%B1%E0%B9%89%E0%B8%99%E0%B8%99%E0%B8%B3%20%E0%B8%A3%E0%B8%A7%E0%B8%A1%E0%B8%96%E0%B8%B6%E0%B8%87%E0%B9%82%E0%B8%8B%E0%B8%99%20business%20matching%20%E0%B8%97%E0%B8%B5%E0%B9%88%E0%B9%80%E0%B8%95%E0%B9%87%E0%B8%A1%E0%B9%84%E0%B8%9B%E0%B8%94%E0%B9%89%E0%B8%A7%E0%B8%A2%E0%B9%82%E0%B8%AD%E0%B8%81%E0%B8%B2%E0%B8%AA%E0%B8%AA%E0%B8%B3%E0%B8%AB%E0%B8%A3%E0%B8%B1%E0%B8%9A%E0%B8%9C%E0%B8%B9%E0%B9%89%E0%B8%9B%E0%B8%A3%E0%B8%B0%E0%B8%81%E0%B8%AD%E0%B8%9A%E0%B8%81%E0%B8%B2%E0%B8%A3%E0%B8%88%E0%B8%B2%E0%B8%81%E0%B8%AD%E0%B8%87%E0%B8%84%E0%B9%8C%E0%B8%81%E0%B8%A3%E0%B8%8A%E0%B8%B1%E0%B9%89%E0%B8%99%E0%B8%99%E0%B8%B3%20%E0%B8%AA%E0%B8%95%E0%B8%B2%E0%B8%A3%E0%B9%8C%E0%B8%97%E0%B8%AD%E0%B8%B1%E0%B8%9E%20smes%20%E0%B8%9C%E0%B8%B9%E0%B9%89%E0%B9%80%E0%B8%8A%E0%B8%B5%E0%B9%88%E0%B8%A2%E0%B8%A7%E0%B8%8A%E0%B8%B2%E0%B8%8D%E0%B8%94%E0%B9%89%E0%B8%B2%E0%B8%99%E0%B9%80%E0%B8%97%E0%B8%84%E0%B9%82%E0%B8%99%E0%B9%82%E0%B8%A5%E0%B8%A2%E0%B8%B5%20%E0%B9%81%E0%B8%A5%E0%B8%B0%E0%B8%9A%E0%B8%B8%E0%B8%84%E0%B8%84%E0%B8%A5%E0%B8%97%E0%B8%B1%E0%B9%88%E0%B8%A7%E0%B9%84%E0%B8%9B%20%E0%B9%80%E0%B8%9E%E0%B8%B7%E0%B9%88%E0%B8%AD%E0%B9%81%E0%B8%A5%E0%B8%81%E0%B9%80%E0%B8%9B%E0%B8%A5%E0%B8%B5%E0%B9%88%E0%B8%A2%E0%B8%99%E0%B8%84%E0%B8%A7%E0%B8%B2%E0%B8%A1%E0%B8%84%E0%B8%B4%E0%B8%94%E0%B9%80%E0%B8%AB%E0%B9%87%E0%B8%99%E0%B8%97%E0%B8%B2%E0%B8%87%E0%B8%98%E0%B8%B8%E0%B8%A3%E0%B8%81%E0%B8%B4%E0%B8%88%20%E0%B9%82%E0%B8%94%E0%B8%A2%E0%B8%97%E0%B8%B1%E0%B9%89%E0%B8%87%E0%B8%AB%E0%B8%A1%E0%B8%94%E0%B8%99%E0%B8%B5%E0%B9%89%E0%B9%84%E0%B8%94%E0%B9%89%E0%B8%AA%E0%B8%A3%E0%B9%89%E0%B8%B2%E0%B8%87%E0%B9%82%E0%B8%AD%E0%B8%81%E0%B8%B2%E0%B8%AA%E0%B8%81%E0%B8%B2%E0%B8%A3%E0%B8%97%E0%B8%B3%E0%B8%98%E0%B8%B8%E0%B8%A3%E0%B8%81%E0%B8%B4%E0%B8%88%E0%B9%80%E0%B8%9E%E0%B8%B4%E0%B9%88%E0%B8%A1%E0%B8%82%E0%B8%B6%E0%B9%89%E0%B8%99%E0%B8%96%E0%B8%B6%E0%B8%87%201,000%20%E0%B8%84%E0%B8%A3%E0%B8%B1%E0%B9%89%E0%B8%87%20%20%E0%B8%AA%E0%B8%A3%E0%B8%B8%E0%B8%9B%20%E0%B8%81%E0%B8%B2%E0%B8%A3%E0%B9%83%E0%B8%8A%E0%B9%89%20nft%20gen2%20%E0%B8%8B%E0%B8%B6%E0%B9%88%E0%B8%87%E0%B9%80%E0%B8%9B%E0%B9%87%E0%B8%99%E0%B8%AA%E0%B9%88%E0%B8%A7%E0%B8%99%E0%B8%AB%E0%B8%99%E0%B8%B6%E0%B9%88%E0%B8%87%E0%B8%82%E0%B8%AD%E0%B8%87%E0%B9%80%E0%B8%97%E0%B8%84%E0%B9%82%E0%B8%99%E0%B9%82%E0%B8%A5%E0%B8%A2%E0%B8%B5%20dynamic%20data%20layer%20%E0%B8%82%E0%B8%AD%E0%B8%87%E0%B8%97%E0%B8%B2%E0%B8%87%20six%20network%20%E0%B8%97%E0%B8%B5%E0%B9%88%E0%B8%87%E0%B8%B2%E0%B8%99%20techsauce%20global%20summit%202023%20%E0%B9%84%E0%B8%94%E0%B9%89%E0%B9%80%E0%B8%9E%E0%B8%B4%E0%B9%88%E0%B8%A1%E0%B8%81%E0%B8%B2%E0%B8%A3%E0%B8%A1%E0%B8%B5%E0%B8%AA%E0%B9%88%E0%B8%A7%E0%B8%99%E0%B8%A3%E0%B9%88%E0%B8%A7%E0%B8%A1%E0%B8%82%E0%B8%AD%E0%B8%87%E0%B8%9C%E0%B8%B9%E0%B9%89%E0%B9%83%E0%B8%8A%E0%B9%89%20%E0%B8%94%E0%B9%89%E0%B8%A7%E0%B8%A2%E0%B8%81%E0%B8%B2%E0%B8%A3%E0%B9%80%E0%B8%8A%E0%B8%B7%E0%B9%8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*Exception:*
{{2026-06-02 18:24:42,146 WARN [main] mapred.YarnChild: Exception running child
: com.ibm.icu.util.ICUInputTooLongException: input too long: 1255 UTF-16 code
units}}
{{ at com.ibm.icu.impl.Punycode.encode(Punycode.java:135)}}
{{ at com.ibm.icu.impl.UTS46.processLabel(UTS46.java:469)}}
{{ at com.ibm.icu.impl.UTS46.processUnicode(UTS46.java:257)}}
{{ at com.ibm.icu.impl.UTS46.process(UTS46.java:193)}}
{{ at com.ibm.icu.impl.UTS46.nameToASCII(UTS46.java:53)}}
{{ at org.apache.nutch.util.URLUtil.convertIDNA2008(URLUtil.java:679)}}
{{ at
org.apache.nutch.net.urlnormalizer.basic.BasicURLNormalizer.normalizeHostName(BasicURLNormalizer.java:434)}}
{{ at
org.apache.nutch.net.urlnormalizer.basic.BasicURLNormalizer.normalize(BasicURLNormalizer.java:194)}}
{{ at
org.apache.nutch.net.URLNormalizers.normalize(URLNormalizers.java:316)}}
{{ at
org.commoncrawl.tools.UrlCleaner$UrlCleanerMapper.map(UrlCleaner.java:136)}}
{{ at
org.commoncrawl.tools.UrlCleaner$UrlCleanerMapper.map(UrlCleaner.java:84)}}
{{ at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:146)}}
{{ at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:800)}}
{{ at org.apache.hadoop.mapred.MapTask.run(MapTask.java:348)}}
{{ at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:178)}}
{{ at java.base/java.security.AccessController.doPrivileged(Native
Method)}}
{{ at java.base/javax.security.auth.Subject.doAs(Subject.java:423)}}
{{ at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1899)}}
{{ at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:172)}}
The exception com.ibm.icu.util.ICUInputTooLongException: input too long: 1255
UTF-16 code units was thrown by ICU `Punycode.encode` ←
`URLUtil.convertIDNA2008` ← `BasicURLNormalizer.normalizeHostName` ←
`UrlCleaner.map`.
Reason, is that `ICUInputTooLongException` is unchecked. So `convertIDNA2008`
only handled the soft `idnaInfo.hasErrors()` path, and the mapper caught only
`MalformedURLException`, so the exception escaped → task died → 4 retries →
job FAILED. (The neighboring `convertIDNA2003` already guarded
`IllegalArgumentException`/`IndexOutOfBoundsException`; the 2008 variant did
not.)
{*}Fix{*}{*}:{*} We wrapped the `idna.nameTo` calls in `convertIDNA2008` and
convert ICU's unchecked exceptions to `MalformedURLException`, with `initCause`
and `LOG.debug`. The UTS46 + Punycode path throws three unrelated unchecked
types, so catch all of them: `catch (ICUException | IllegalArgumentException |
IllegalStateException e)` (`ICUException` covers `ICUInputTooLongException`;
`IllegalArgumentException` comes from `UTS46`, `IllegalStateException` from
`Punycode`; the referenced `StringPrepParseException` is checked and cannot
escape). The mapper then rejects the URL (increments the rejected counter) and
the job survives.
We already fixed in the CC fork and we are pushing the fix upstream.
was:
While running the last crawl we hit a small bug in the URLCleaner which
crawshed while encountering an invalid URL:
```
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```
**Exception:**
```
2026-06-02 18:24:42,146 WARN [main] mapred.YarnChild: Exception running child :
com.ibm.icu.util.ICUInputTooLongException: input too long: 1255 UTF-16 code
units
at com.ibm.icu.impl.Punycode.encode(Punycode.java:135)
at com.ibm.icu.impl.UTS46.processLabel(UTS46.java:469)
at com.ibm.icu.impl.UTS46.processUnicode(UTS46.java:257)
at com.ibm.icu.impl.UTS46.process(UTS46.java:193)
at com.ibm.icu.impl.UTS46.nameToASCII(UTS46.java:53)
at org.apache.nutch.util.URLUtil.convertIDNA2008(URLUtil.java:679)
at
org.apache.nutch.net.urlnormalizer.basic.BasicURLNormalizer.normalizeHostName(BasicURLNormalizer.java:434)
at
org.apache.nutch.net.urlnormalizer.basic.BasicURLNormalizer.normalize(BasicURLNormalizer.java:194)
at
org.apache.nutch.net.URLNormalizers.normalize(URLNormalizers.java:316)
at
org.commoncrawl.tools.UrlCleaner$UrlCleanerMapper.map(UrlCleaner.java:136)
at
org.commoncrawl.tools.UrlCleaner$UrlCleanerMapper.map(UrlCleaner.java:84)
at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:146)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:800)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:348)
at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:178)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.base/javax.security.auth.Subject.doAs(Subject.java:423)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1899)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:172)
```
The exception `com.ibm.icu.util.ICUInputTooLongException: input too long: 1255
UTF-16 code units` was thrown by ICU `Punycode.encode` ←
`URLUtil.convertIDNA2008` ← `BasicURLNormalizer.normalizeHostName` ←
`UrlCleaner.map`.
Reason, is that `ICUInputTooLongException` is unchecked. So `convertIDNA2008`
only handled the soft `idnaInfo.hasErrors()` path, and the mapper caught only
`MalformedURLException`, so the exception escaped → task died → 4 retries →
job FAILED. (The neighboring `convertIDNA2003` already guarded
`IllegalArgumentException`/`IndexOutOfBoundsException`; the 2008 variant did
not.)
**Fix**: We wrapped the `idna.nameTo*` calls in `convertIDNA2008` and convert
ICU's unchecked exceptions to `MalformedURLException`, with `initCause` and
`LOG.debug`. The UTS46 + Punycode path throws three unrelated unchecked types,
so catch all of them: `catch (ICUException | IllegalArgumentException |
IllegalStateException e)` (`ICUException` covers `ICUInputTooLongException`;
`IllegalArgumentException` comes from `UTS46`, `IllegalStateException` from
`Punycode`; the referenced `StringPrepParseException` is checked and cannot
escape). The mapper then rejects the URL (increments the rejected counter) and
the job survives.
We already fixed in the CC fork and we are pushing the fix upstream.
> URLCleaner missing catching ICUInputTooLongException
> -----------------------------------------------------
>
> Key: NUTCH-3180
> URL: https://issues.apache.org/jira/browse/NUTCH-3180
> Project: Nutch
> Issue Type: Bug
> Components: urlfilter
> Affects Versions: 1.22
> Reporter: Luca Foppiano
> Priority: Major
>
> While running the last crawl we hit a small bug in the URLCleaner which
> crawshed while encountering an invalid URL:
> 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> *Exception:*
> {{2026-06-02 18:24:42,146 WARN [main] mapred.YarnChild: Exception running
> child : com.ibm.icu.util.ICUInputTooLongException: input too long: 1255
> UTF-16 code units}}
> {{ at com.ibm.icu.impl.Punycode.encode(Punycode.java:135)}}
> {{ at com.ibm.icu.impl.UTS46.processLabel(UTS46.java:469)}}
> {{ at com.ibm.icu.impl.UTS46.processUnicode(UTS46.java:257)}}
> {{ at com.ibm.icu.impl.UTS46.process(UTS46.java:193)}}
> {{ at com.ibm.icu.impl.UTS46.nameToASCII(UTS46.java:53)}}
> {{ at org.apache.nutch.util.URLUtil.convertIDNA2008(URLUtil.java:679)}}
> {{ at
> org.apache.nutch.net.urlnormalizer.basic.BasicURLNormalizer.normalizeHostName(BasicURLNormalizer.java:434)}}
> {{ at
> org.apache.nutch.net.urlnormalizer.basic.BasicURLNormalizer.normalize(BasicURLNormalizer.java:194)}}
> {{ at
> org.apache.nutch.net.URLNormalizers.normalize(URLNormalizers.java:316)}}
> {{ at
> org.commoncrawl.tools.UrlCleaner$UrlCleanerMapper.map(UrlCleaner.java:136)}}
> {{ at
> org.commoncrawl.tools.UrlCleaner$UrlCleanerMapper.map(UrlCleaner.java:84)}}
> {{ at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:146)}}
> {{ at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:800)}}
> {{ at org.apache.hadoop.mapred.MapTask.run(MapTask.java:348)}}
> {{ at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:178)}}
> {{ at java.base/java.security.AccessController.doPrivileged(Native
> Method)}}
> {{ at java.base/javax.security.auth.Subject.doAs(Subject.java:423)}}
> {{ at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1899)}}
> {{ at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:172)}}
> The exception com.ibm.icu.util.ICUInputTooLongException: input too long:
> 1255 UTF-16 code units was thrown by ICU `Punycode.encode` ←
> `URLUtil.convertIDNA2008` ← `BasicURLNormalizer.normalizeHostName` ←
> `UrlCleaner.map`.
> Reason, is that `ICUInputTooLongException` is unchecked. So
> `convertIDNA2008` only handled the soft `idnaInfo.hasErrors()` path, and the
> mapper caught only `MalformedURLException`, so the exception escaped → task
> died → 4 retries → job FAILED. (The neighboring `convertIDNA2003` already
> guarded `IllegalArgumentException`/`IndexOutOfBoundsException`; the 2008
> variant did not.)
> {*}Fix{*}{*}:{*} We wrapped the `idna.nameTo` calls in `convertIDNA2008` and
> convert ICU's unchecked exceptions to `MalformedURLException`, with
> `initCause` and `LOG.debug`. The UTS46 + Punycode path throws three unrelated
> unchecked types, so catch all of them: `catch (ICUException |
> IllegalArgumentException | IllegalStateException e)` (`ICUException` covers
> `ICUInputTooLongException`; `IllegalArgumentException` comes from `UTS46`,
> `IllegalStateException` from `Punycode`; the referenced
> `StringPrepParseException` is checked and cannot escape). The mapper then
> rejects the URL (increments the rejected counter) and the job survives.
> We already fixed in the CC fork and we are pushing the fix upstream.
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