HBASE-22776 Rename config names in user scan snapshot feature #440
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openinx
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Aug 6, 2019
| @@ -511,9 +556,16 @@ boolean isNotFamilyOrQualifierPermission(TablePermission tablePermission) { | |||
| return !tablePermission.hasFamily() && !tablePermission.hasQualifier(); | |||
| } | |||
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| boolean isTableUserScanSnapshotEnabled(TableDescriptor tableDescriptor) { | |||
| public static boolean isAclSyncToHdfsEnabled(Configuration conf) { | |||
| String masterCoprocessors = conf.get(CoprocessorHost.MASTER_COPROCESSOR_CONF_KEY); | |||
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Use conf.getStrings to parse the masterCoprocessors ? and then use the HashSet to check the existence of SnapshotScannerHDFSAclController & AccessController ... that would be better...
| @@ -213,6 +213,7 @@ public void postCompletedSnapshotAction(ObserverContext<MasterCoprocessorEnviron | |||
| public void postCompletedTruncateTableAction(ObserverContext<MasterCoprocessorEnvironment> c, | |||
| TableName tableName) throws IOException { | |||
| if (needHandleTableHdfsAcl(tableName, "truncateTable " + tableName)) { | |||
| hdfsAclHelper.createTableDirectories(tableName); | |||
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Why create the table directories here ? I guess the TruncateTableProcedure will create the dir ?
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The tmp table dir is deleted after truncate table, so recreate this directory.
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So please add the comment to say : it's mainly used for creating tmp table dir here because ...
| public static final String USER_SCAN_SNAPSHOT_ENABLE = "hbase.user.scan.snapshot.enable"; | ||
| public static final String USER_SCAN_SNAPSHOT_THREAD_NUMBER = | ||
| "hbase.user.scan.snapshot.thread.number"; | ||
| public static final String ACL_SYNC_TO_HDFS_ENABLE = "hbase.acl.sync.to.hdfs.enable"; |
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better to name it as 'hbase.table.acl.sync.to.hdfs.enable' ?
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The steps to config this feature is as followings:
- Check HDFS configuration
- Add master coprocessor:
hbase.coprocessor.master.classes =
“org.apache.hadoop.hbase.security.access.AccessController
,org.apache.hadoop.hbase.security.access.SnapshotScannerHDFSAclController” - Enable this feature:
hbase.acl.sync.to.hdfs.enable=true - Modify table scheme to enable this feature:
alter 't1', CONFIGURATION => {'hbase.acl.sync.to.hdfs.enable' => 'true'}
So this config has two usages in both step 3 and 4.
If step3 is set, the acl will aync to HDFS if grant namespace or global.
Maybe 'hbase.table.acl.sync.to.hdfs.enable' is confused because global and namespace acls are also synced?
.../src/main/java/org/apache/hadoop/hbase/security/access/SnapshotScannerHDFSAclController.java
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openinx
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| @@ -213,6 +213,7 @@ public void postCompletedSnapshotAction(ObserverContext<MasterCoprocessorEnviron | |||
| public void postCompletedTruncateTableAction(ObserverContext<MasterCoprocessorEnvironment> c, | |||
| TableName tableName) throws IOException { | |||
| if (needHandleTableHdfsAcl(tableName, "truncateTable " + tableName)) { | |||
| hdfsAclHelper.createTableDirectories(tableName); | |||
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So please add the comment to say : it's mainly used for creating tmp table dir here because ...
| public static final String USER_SCAN_SNAPSHOT_ENABLE = "hbase.user.scan.snapshot.enable"; | ||
| public static final String USER_SCAN_SNAPSHOT_THREAD_NUMBER = | ||
| "hbase.user.scan.snapshot.thread.number"; | ||
| public static final String ACL_SYNC_TO_HDFS_ENABLE = "hbase.acl.sync.to.hdfs.enable"; |
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