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https://issues.apache.org/jira/browse/HDFS-11568?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16009923#comment-16009923
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Yuanbo Liu commented on HDFS-11568:
-----------------------------------
Sure, please go ahead
> Ozone: Create metadata path automatically after null checking
> -------------------------------------------------------------
>
> Key: HDFS-11568
> URL: https://issues.apache.org/jira/browse/HDFS-11568
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Yuanbo Liu
> Assignee: Yuanbo Liu
>
> The metadata path of ozone container should be checked properly and created
> accordingly while it's initiated. Some code snips that we need to change are
> here:
> {{ContainerMapping.java}}
> {code}
> // TODO: Fix this checking.
> String scmMetaDataDir = conf.get(OzoneConfigKeys
> .OZONE_CONTAINER_METADATA_DIRS);
> if ((scmMetaDataDir == null) || (scmMetaDataDir.isEmpty())) {
> throw
> new IllegalArgumentException("SCM metadata directory is not
> valid.");
> }
> {code}
> {{OzoneContainer.java}}
> {code}
> List<StorageLocation> locations = new LinkedList<>();
> String[] paths = ozoneConfig.getStrings(
> OzoneConfigKeys.OZONE_CONTAINER_METADATA_DIRS);
> if (paths != null && paths.length > 0) {
> for (String p : paths) {
> locations.add(StorageLocation.parse(p));
> }
> } else {
> getDataDir(locations);
> }
> {code}
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