[SPARK-48490][CORE] Unescapes any literals for message of MessageWithContext #46824
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common/utils/src/main/scala/org/apache/spark/internal/Logging.scala
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@gengliangwang |
gengliangwang
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May 31, 2024
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Thanks, merging to master |
| */ | ||
| class LogEntry(messageWithContext: => MessageWithContext) { | ||
| def message: String = messageWithContext.message | ||
| def message: String = StringEscapeUtils.unescapeJava(messageWithContext.message) |
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Hi, @panbingkun and @gengliangwang .
This seems to break SparkR somehow. Could you take a look at this?
-- Error ('test_basic.R:25:3'): create DataFrame from list or data.frame -------
Error in `handleErrors(returnStatus, conn)`: java.lang.IllegalArgumentException: Unable to parse unicode value: serF
at org.apache.commons.text.translate.UnicodeUnescaper.translate(UnicodeUnescaper.java:55)
at org.apache.commons.text.translate.AggregateTranslator.translate(AggregateTranslator.java:58)
at org.apache.commons.text.translate.CharSequenceTranslator.translate(CharSequenceTranslator.java:101)
at org.apache.commons.text.translate.CharSequenceTranslator.translate(CharSequenceTranslator.java:63)
at org.apache.commons.text.StringEscapeUtils.unescapeJava(StringEscapeUtils.java:802)
at org.apache.spark.internal.LogEntry.message(Logging.scala:103)
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Okay, Let me investigate it
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@dongjoon-hyun
I have identified the root cause of this issue and am currently attempting to fix it
#46897 (comment)
yaooqinn
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Jun 21, 2024
### What changes were proposed in this pull request? Even with the fix in #46824, the escape sequences (`\r`, `\n`, `\t`, etc) are not handled properly. For example, when we use `log"\n"`, the StringContext interprets `\n` as a literal backslash `\` followed by `n` instead of a newline character. As a result, the bytes of `log"\n".message` becomes `[92, 110]`, instead of `[10]`. This PR is to fix the issue by using the method StringContext.processEscapes in `LogStringContext`. ### Why are the changes needed? To ensure that escape sequences are properly processed in Spark logs ### Does this PR introduce _any_ user-facing change? No ### How was this patch tested? New UT ### Was this patch authored or co-authored using generative AI tooling? No Closes #47050 from gengliangwang/fixEscape. Authored-by: Gengliang Wang <[email protected]> Signed-off-by: Kent Yao <[email protected]>
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What changes were proposed in this pull request?
The pr aims to
unescapesany literals formessageofMessageWithContextWhy are the changes needed?
It will output:
But:
It will output:
Obviously, the latter is not the result we
expected.Does this PR introduce any user-facing change?
Yes, fix bug.
How was this patch tested?
Was this patch authored or co-authored using generative AI tooling?
No.