Ming Ma created HDFS-12473:
------------------------------
Summary: Change host JSON file format
Key: HDFS-12473
URL: https://issues.apache.org/jira/browse/HDFS-12473
Project: Hadoop HDFS
Issue Type: Bug
Reporter: Ming Ma
The existing host JSON file format doesn't have a top-level token.
{noformat}
{"hostName": "host1"}
{"hostName": "host2", "upgradeDomain": "ud0"}
{"hostName": "host3", "adminState": "DECOMMISSIONED"}
{"hostName": "host4", "upgradeDomain": "ud2", "adminState": "DECOMMISSIONED"}
{"hostName": "host5", "port": 8090}
{"hostName": "host6", "adminState": "IN_MAINTENANCE"}
{"hostName": "host7", "adminState": "IN_MAINTENANCE",
"maintenanceExpireTimeInMS": "112233"}
{noformat}
Instead, to conform with the JSON standard it should be like
{noformat}
[
{"hostName": "host1"},
{"hostName": "host2", "upgradeDomain": "ud0"},
{"hostName": "host3", "adminState": "DECOMMISSIONED"},
{"hostName": "host4", "upgradeDomain": "ud2", "adminState": "DECOMMISSIONED"},
{"hostName": "host5", "port": 8090},
{"hostName": "host6", "adminState": "IN_MAINTENANCE"},
{"hostName": "host7", "adminState": "IN_MAINTENANCE",
"maintenanceExpireTimeInMS": "112233"}
]
{noformat}
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