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[HDFS-5620] NameNode: implement Global ACL Set as a memory optimization.
...The AclManager can maintain a Global ACL Set to store all distinct ACLs in use by the file system. All inodes that have the same ACL entries can share the same ACL instance....
, 2014-12-05, 19:09
Re: Clarification related to ACL with setPermission
- [mail # dev]
...Hi Vinay,The behavior you described is correct according to the POSIX ACL model.The reason for this is that once a file has an ACL, its group permissionbits are then used as the mask entry, ...
, 2014-11-25, 22:16
[HDFS-7313] Support optional configuration of AES cipher suite on DataTransferProtocol.
...HDFS-6606 introduced use of AES for encryption of DataTransferProtocol. This issue proposes introduction of a configuration property for administrators to control whether or not AES is...
, 2014-11-24, 07:05
[HDFS-7425] NameNode block deletion logging uses incorrect appender.
...The NameNode uses 2 separate Log4J appenders for tracking state changes. The appenders are named "org.apache.hadoop.hdfs.StateChange" and "BlockStateChange". The intention of Blo...
, 2014-11-22, 15:38
[HDFS-6711] FSNamesystem#getAclStatus does not write to the audit log.
...Consider writing an event to the audit log for the getAclStatus method....
, 2014-11-14, 19:51
[HDFS-4702] remove namesystem lock from DatanodeManager#fetchDatanodes
...DatanodeManager#fetchDatanodes currently holds the namesystem read lock while iterating through data nodes. This method is called from the namenode web UI. HDFS-3990 reported a p...
, 2014-11-13, 22:19
[HDFS-7382] DataNode in secure mode may throw NullPointerException if client connects before DataNode registers itself with NameNode.
...SaslDataTransferServer#receive needs to check if the DataNode is listening on a privileged port. It does this by checking the address from the DatanodeID. However, there is a win...
, 2014-11-10, 18:53
[HDFS-7328] TestTraceAdmin assumes Unix line endings.
...TestTraceAdmin contains some string assertions that assume Unix line endings. The test fails on Windows....
, 2014-11-10, 18:32
[HDFS-7367] HDFS short-circuit read cannot negotiate shared memory slot and file descriptors when SASL is enabled on DataTransferProtocol.
...When both short-circuit read and SASL on DataTransferProtocol are enabled, the server side tries to negotiate SASL on the operation to allocate a new shared memory slot. However, the t...
, 2014-11-06, 15:12
[HDFS-7359] NameNode in secured HA cluster fails to start if dfs.namenode.secondary.http-address cannot be interpreted as a network address.
...In a secured cluster, the JournalNode validates that the caller is one of a valid set of principals. One of the principals considered is that of the SecondaryNameNode. This invol...
, 2014-11-06, 15:12
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