Help Center > > User Guide> Managing Active Clusters> MRS Patch Description> MRS 2.1.0.1 Patch Description

MRS 2.1.0.1 Patch Description

Updated at: Feb 25, 2020 GMT+08:00

Basic Information

Table 1 Basic information

Patch Version

MRS 2.1.0.1

Release Date

2020-02-12

Resolved Issues

List of the resolved issues in MRS 2.1.0.1:

MRS Manager

The return results of Hive SQL statements submitted by V2 jobs have been optimized, and the issue that V2 jobs fail to be submitted using an agency token has been solved.

MRS big data components

HiveServer out of memory (OOM) has been solved for MRS Hive: HIVE-10970 and HIVE-22275

Compatibility with Other Patches

None

Impact of Patch Installation

During the installation of MRS 2.1.0.1 patches, MRS Manager and Hive are restarted. During the restart, the services are temporarily unavailable.

After MRS 2.1.0.1 patches are installed, log in to the Master1 node of the MRS cluster and delete the job directory in HDFS.

  • For a cluster with Kerberos authentication disabled, run the following command to delete the job directory in HDFS:

    hdfs dfs -rm -r /mrs/mrsjob/hive

  • For a cluster with Kerberos authentication enabled, perform the following operations to delete the job directory in HDFS:
    1. Run the following command and enter the password to perform authentication.

      kinit hdfs

    2. Run the following command to delete the job directory in HDFS:

      hdfs dfs -rm -r /mrs/mrsjob/hive

This step is not required for a new MRS cluster because the directory does not exist in HDFS.

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