Help Center > > User Guide> Managing Active Clusters> MRS Patch Description> MRS 2.0.1.3 Patch Description

MRS 2.0.1.3 Patch Description

Updated at: Dec 31, 2019 GMT+08:00

Basic Information

Table 1 Basic information

Patch Version

MRS 2.0.1.3

Release Date

2019-12-25

Resolved Issues

List of the resolved issues in MRS 2.0.1.3:

MRS Manager

The cluster scaling logic has been optimized and the TCP connection leak issues have been solved at the background of V1 job management APIs.

MRS big data components

The following issues have been solved for MRS Hive: HiveServer out of memory (OOM); slow MergeFile phase if a large number of small files exist; files not found in the load partition phase of insert overwrite, and file merging failure during HIVE-22373:Container reuse.

List of the resolved issues in MRS 2.0.1.2:

MRS Manager

The following issue has been solved: Scale-out fails occasionally due to timeout that occurs when ResourceManager executes refreshNodes.

List of the resolved issues in MRS 2.0.1.1:

MRS Manager

The following issue has been solved: OOM occurs on the executor of MRS Master nodes due to repeated node scale-in or scale-out.

MRS big data components

The following new function has been added: MRS Presto supports OBSFileSystem.

The following issues have been solved for MRS Presto: The jstack is frequently printed and log files are too large to scroll.

Compatibility with Other Patches

The MRS 2.0.1.3 patch package contains all content of the MRS 2.0.1.2 and MRS 2.0.1.1 patch packages.

Impact of Patch Installation

During the installation of MRS 2.0.1.3 patches, MRS Manager and Presto are restarted. During the restart, the services are temporarily unavailable.

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