[HDFS-11832] Switch leftover logs to slf4j format in BlockManager.java

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.7.0, 2.8.0, 3.0.0-alpha1
• Fix Version/s: 3.0.0-alpha4
• Component/s: namenode
• Target Version/s: 3.0.0-alpha4
• Hadoop Flags: Reviewed
• Assignee: Chen Liang
• Reporter: Hui Xu
• Created: 16/May/17 14:21
• Updated: 24/Apr/18 20:51
• Resolved: 29/May/17 08:31

Description

HDFS-7706 Switch BlockManager logging to use slf4j. But the logging formats were not modified appropriately. For example:
if (LOG.isDebugEnabled())

{ LOG.debug("blocks = " + java.util.Arrays.asList(blocks)); }

These codes should be modified to:
LOG.debug("blocks = {}", java.util.Arrays.asList(blocks));