hadoop2.0 - Related information

• Why not support wildcards (foo/*) when reading files from a folder in hdfs?

  I just encountered such a problem in learning Hadoop get started -sharp bin hdfs dfs -ls drwxr-xr-x - zhugw supergroup 0 2018-11-17 17:11 output drwxr-xr-x - zhugw supergroup 0 2018-11-17 18:02 pv_users_count -sharp bin hdfs df...

  Hadoop2.0 hdfs

  Nov.24,2021
• Hadoop streaming Runtime subprocess failed with code 126

  when running hadoop streaming, an error is reported. The exception content is as follows: Error: java.lang.RuntimeException: PipeMapRed.waitOutputThreads(): subprocess failed with code 126 at org.apache.hadoop.streaming.PipeMapRed.waitOutputThreads...

  Python hadoop hadoop2.0

  Mar.01,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1eacefa-2118.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1eacefa-2118.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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