Arun C Murthy
Vinod Kumar Vavilapalli
Brahma Reddy Battula
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[HADOOP-10595] Improve concurrency in HostFileReader
...HostsFileReader is used to keep track of included and excluded hosts in the cluster. The threads needs to synchronize to access the set of hosts.This can be improved....
, 2014-05-09, 17:38
[HADOOP-10593] Concurrency Improvements
...This is an umbrella jira to improve the concurrency of a few classes by making use of safe publication idioms. Most of the improvements are based on the following:To publish an object safely...
, 2014-05-09, 17:19
[HADOOP-10471] Reduce the visibility of constants in ProxyUsers
...Most of the constants in proxyusers have public visibility unnecessarily. These public constants should be set to private and their external usage should be replaced by the correspondi...
, 2014-05-08, 16:17
[HADOOP-10539] Provide backward compatibility for ProxyUsers.authorize() call
...HADOOP-10499 removed the unused Configuration parameter from ProxyUsers.authorize() method. This broke few components like HBase who invoked that function and forced it to rely o...
, 2014-04-25, 14:40
[HADOOP-10470] Change synchronization mechanism in ProxyUsers to readwrite lock
...Currently ProxyUsers class achieve synchronization via synchornized. Performance on ProxyUsers.authorize can be improved by replacing this with read/write lock....
, 2014-04-24, 14:54
[HADOOP-8726] The Secrets in Credentials are not available to MR tasks
...Though secrets are passed in Credentials, the secrets are not available to the MR tasks.This issue exists with security on/off. This is related to the change in HADOOP-8225...
, 2014-04-09, 05:09
[HADOOP-9709] Add ability in Hadoop servers (Namenode, Datanode, ResourceManager ) to support multiple QOP (Authentication , Privacy)
...Hadoop Servers currently support only one QOP for the whole cluster.We want Hadoop servers to support different quality of protection at the same time. This will enable different clients to ...
, 2014-04-01, 00:39
[HADOOP-9710] Modify security layer to support QoP based on ports
...Hadoop Servers currently support only one quality of protection(QOP) for all of the cluster.This jira allows a server to have different QOP on different ports. The QOP is set based on the po...
, 2014-04-01, 00:36
apache-hadoop-2.2.0 linux task-controller
- [mail # user]
...Hi Tim,The equivalent functionality isin hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/impl/container-executor.ctask-co...
, 2014-02-28, 21:11
kerberos principals per node necessary?
- [mail # user]
...Its a bad idea, Koert.When multiple nodes are using the same principal (in this case all thedatanodes ) , it will result in server assuming that its a replay attackand result in denial...
, 2014-02-03, 23:05
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