Error writing file '/tmp/MLwB41Zv' (Errcode: 28)

(3, u"Error writing file '/tmp/MLwB41Zv' (Errcode: 28)")
Traceback (most recent call last):
  File "./apps/delivery/publish_java_views.py", line 375, in post
    code.save()
  File "/usr/local/lib/python2.7/site-packages/django/db/models/base.py", line 708, in save
    force_update=force_update, update_fields=update_fields)
  File "/usr/local/lib/python2.7/site-packages/django/db/models/base.py", line 736, in save_base
    updated = self._save_table(raw, cls, force_insert, force_update, using, update_fields)
  File "/usr/local/lib/python2.7/site-packages/django/db/models/base.py", line 801, in _save_table
    forced_update)
  File "/usr/local/lib/python2.7/site-packages/django/db/models/base.py", line 851, in _do_update
    return filtered._update(values) > 0
  File "/usr/local/lib/python2.7/site-packages/django/db/models/query.py", line 645, in _update
    return query.get_compiler(self.db).execute_sql(CURSOR)
  File "/usr/local/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 1149, in execute_sql
    cursor = super(SQLUpdateCompiler, self).execute_sql(result_type)
  File "/usr/local/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 848, in execute_sql
    cursor.execute(sql, params)
  File "/usr/local/lib/python2.7/site-packages/django/db/backends/utils.py", line 64, in execute
    return self.cursor.execute(sql, params)
  File "/usr/local/lib/python2.7/site-packages/django/db/utils.py", line 95, in __exit__
    six.reraise(dj_exc_type, dj_exc_value, traceback)
  File "/usr/local/lib/python2.7/site-packages/django/db/backends/utils.py", line 64, in execute
    return self.cursor.execute(sql, params)
  File "/usr/local/lib/python2.7/site-packages/django/db/backends/mysql/base.py", line 112, in execute
    return self.cursor.execute(query, args)
  File "/usr/local/lib/python2.7/site-packages/pymysql/cursors.py", line 166, in execute
    result = self._query(query)
  File "/usr/local/lib/python2.7/site-packages/pymysql/cursors.py", line 322, in _query
    conn.query(q)
  File "/usr/local/lib/python2.7/site-packages/pymysql/connections.py", line 835, in query
    self._affected_rows = self._read_query_result(unbuffered=unbuffered)
  File "/usr/local/lib/python2.7/site-packages/pymysql/connections.py", line 1019, in _read_query_result
    result.read()
  File "/usr/local/lib/python2.7/site-packages/pymysql/connections.py", line 1302, in read
    first_packet = self.connection._read_packet()
  File "/usr/local/lib/python2.7/site-packages/pymysql/connections.py", line 981, in _read_packet
    packet.check_error()
  File "/usr/local/lib/python2.7/site-packages/pymysql/connections.py", line 393, in check_error
    err.raise_mysql_exception(self._data)
  File "/usr/local/lib/python2.7/site-packages/pymysql/err.py", line 107, in raise_mysql_exception
    raise errorclass(errno, errval)
InternalError: (3, u"Error writing file '/tmp/MLwB41Zv' (Errcode: 28)")

是磁盘满了

原来还有perror命令

[root@dev8 utils]# perror 28
OS error code  28:  No space left on device

https://stackoverflow.com/questions/7415710/mysql-writing-file-error-errcode-28