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https://issues.apache.org/jira/browse/HADOOP-2403?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amar Kamat updated HADOOP-2403:
-------------------------------
Attachment: EncodeDecode.java
Attaching a sample encode/decode implementation
_Data in code_ :
{code}
StringBuffer line = new StringBuffer();
line.append("I m happy");
line.append('\n');
line.append("me 2");
line.append('\n');
line.append("`1234567890-=qwertyuiop[]\\asdfghjkl;'zxcvbnm,./[EMAIL
PROTECTED]&*()_+QWERTYUIOP{}|ASDFGHJKL:\"'ZXCVBNM<>?\r\t\b\n\f");
{code}
_Data on screen_ :
Data :
{code}
I m happy
me 2
`1234567890-=qwertyuiop[]\asdfghjkl;'zxcvbnm,./[EMAIL
PROTECTED]&*()_+QWERTYUIOP{}|ASDFGHJKL:"'ZXCVBNM<>?
{code}
------------------------------------
Code :
{code}
73-32-109-32-104-97-112-112-121-10-109-101-32-50-10-96-49-50-51-52-53-54-55-56-57-48-45-61-113-119-101-114-116-121-117-105-111-112-91-93-92-97-115-100-102-103-104-106-107-108-59-39-122-120-99-118-98-110-109-44-46-47-126-33-64-35-36-37-94-38-42-40-41-95-43-81-87-69-82-84-89-85-73-79-80-123-125-124-65-83-68-70-71-72-74-75-76-58-34-39-90-88-67-86-66-78-77-60-62-63-13-9-8-10-12-
{code}
------------------------------------
Decoded :
{code}
I m happy
me 2
`1234567890-=qwertyuiop[]\asdfghjkl;'zxcvbnm,./[EMAIL
PROTECTED]&*()_+QWERTYUIOP{}|ASDFGHJKL:"'ZXCVBNM<>?
{code}
> JobHistory log files contain data that cannot be parsed by
> org.apache.hadoop.mapred.JobHistory
> ----------------------------------------------------------------------------------------------
>
> Key: HADOOP-2403
> URL: https://issues.apache.org/jira/browse/HADOOP-2403
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Reporter: Runping Qi
> Priority: Critical
> Attachments: EncodeDecode.java
>
>
> When some tasks failed, the job tracker writes an line to the history file
> with error message.
> However, the error message may mess up with the history file format, choking
> the history parser. Here is an example:
> MapAttempt TASK_TYPE="MAP" TASKID="tip_200712102254_0001_m_000090"
> TASK_ATTEMPT_ID="task_200712102254_0001_m_000090_0" TASK_STATUS="FAILED"
> FINISH_TIME="1197327293253" HOSTNAME="XXXX:50050"
> ERROR="java.lang.IllegalArgumentException: Trouble to get key or value (<,>
> substituted by null
> . Key XML-Ori:
> <Root>
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