Change History

Table 1 Change History

Release Date	What's New
2024-01-25	Optimized the image format and modified the title description of MRS Manager.
2024-01-19	Modified the following content: Added the description about MRS 3.1.2-LTS.2.14. For details, see MRS 3.1.2-LTS.2 Patch Description.
2023-12-20	Modified the following content: Added the description about scaling in ClickHouse clusters. For details, see Removing ClickHouseServer Instance Nodes. The title of the section is optimized to exclude special characters. For details, see Accessing Manager.
2023-11-16	Modified the following content: Updated the supported cluster versions. For details, see Components and Versions.
2023-11-11	Modified the following content: Deleted the description about disk encryption parameters. For details, see Creating a Custom Cluster.
2023-09-08	Modified the following content: Updated available cluster versions. For details, see Creating a Custom Cluster. Added the description about system disk encryption parameters. For details, see Creating a Custom Cluster. Modified the constraints of adding a bootstrap action. For details, see Adding a Bootstrap Action. Add the description that the password of user omm is radomly generated. For details, see User Account ListUser Account ListSystem User Description. Optimized Flume alarm description. For details, see ALM-24010 Flume Certificate File Is Invalid or Damaged to ALM-24015 Flume MonitorServer Certificate File Has Expired.
2023-07-27	Modified the following content: Modified the ALM-45431 alarm title. For details, see ALM-45431 Improper ClickHouse Instance Distribution for Topology Allocation.
2023-05-04	Modified the following content: Added MRS 3.2.0-LTS.1. For details, see Creating a Custom Cluster. Added description of CDL and IoTDB technical principles, For details, see CDL and IoTDB. Added instructions for backing up and restoring CDL and IoT database data. Backing Up CDL Data Backing Up IoTDB Metadata Backing Up IoTDB Service Data Restoring CDL Data Restoring IoTDB Metadata Restoring IoTDB Service Data Supported online patch pushing and update. For details, see Patch Update. Added and updated some alarms of MRS 3.2.0-LTS.1. ALM-12012 NTP Service Is Abnormal ALM-12037 NTP Server Abnormal ALM-12103 Executor Resource Exception ALM-12104 Abnormal Knox Resources ALM-12172 Failed to Report Metrics to Cloud Eye ALM-12190 Number of Knox Connections Exceeds the Threshold ALM-19021 Handler Usage of RegionServer Exceeds the Threshold ALM-23001 Loader Service Unavailable ALM-23003 Loader Task Execution Failure ALM-23004 Loader Heap Memory Usage Exceeds the Threshold ALM-23005 Loader Non-Heap Memory Usage Exceeds the Threshold ALM-23006 Loader Direct Memory Usage Exceeds the Threshold ALM-23007 Garbage Collection (GC) Time of the Loader Process Exceeds the Threshold ALM-38011 User Connection Usage on Broker Exceeds the Threshold ALM-45000 HetuEngine Service Unavailable ALM-45001 Faulty HetuEngine Compute Instances ALM-45429 Table Metadata Synchronization Failed on the Added ClickHouse Node ALM-45430 Permission Metadata Synchronization Failed on the Added ClickHouse Node ALM-45431 Improper ClickHouse Instance Distribution for Topology Allocation ALM-45432 ClickHouse User Synchronization Process Fails ALM-45433 ClickHouse AZ Topology Exception ALM-45434 A Single Replica Exists in the ClickHouse Data Table ALM-45585 IoTDB Service Unavailable ALM-45586 IoTDBServer Heap Memory Usage Exceeds the Threshold ALM-45587 IoTDBServer GC Duration Exceeds the Threshold ALM-45588 IoTDBServer Direct Memory Usage Exceeds the Threshold ALM-45589 ConfigNode Heap Memory Usage Exceeds the Threshold ALM-45590 ConfigNode GC Duration Exceeds the Threshold ALM-45591 ConfigNode Direct Memory Usage Exceeds the Threshold ALM-45592 IoTDBServer RPC Execution Duration Exceeds the Threshold ALM-45593 IoTDBServer Flush Execution Duration Exceeds the Threshold ALM-45594 IoTDBServer Intra-Space Merge Duration Exceeds the Threshold ALM-45595 IoTDBServer Cross-Space Merge Duration Exceeds the Threshold ALM-45615 CDL Service Unavailable ALM-45616 CDL Job Execution Exception ALM-45617 Data Queued in the CDL Replication Slot Exceeds the Threshold ALM-45635 FlinkServer Job Execution Failure ALM-45636 FlinkServer Job Checkpoints Keep Failing ALM-45636 Flink Job Checkpoints Keep Failing ALM-45637 FlinkServer Task Is Continuously Under Back Pressure ALM-45638 Number of Restarts After FlinkServer Job Failures Exceeds the Threshold ALM-45638 Number of Restarts After Flink Job Failures Exceeds the Threshold ALM-45640 FlinkServer Heartbeat Interruption Between the Active and Standby Nodes ALM-45641 Data Synchronization Exception Between the Active and Standby FlinkServer Nodes
2022-11-01	Modified the following content: Added some FAQ. For details, see FAQ. Updated the screenshots in some sections in MRS Manager Operation Guide (Applicable to 3.x).
2022-9-29	Modified the following content: Added MRS 3.1.2-LTS.3. For details, see Creating a Custom Cluster.
2021-06-30	Modified the following content: Added MRS 3.1.0-LTS.1. For details, see Creating a Custom Cluster.
2020-03-12	Accepted for RM-1305 and RM-2779.
2020-03-09	Modified the following content: Added MRS 1.9.2. For details, see Creating a Custom Cluster.
2020-02-22	Modified the following content: Added MRS 2.1.0. For details, see Creating a Custom Cluster. Supported scale-out of nodes with new specifications. For details, see Manually Scaling Out a Cluster.
2019-07-03	Modified the following content: Creating a Custom Cluster
2018-10-09	Accepted in OTC 3.2.
2018-09-10	Modified the following content: Sample Scripts
2018-08-30	Added the following content: Installing Third-Party Software Using Bootstrap Actions Introduction to Bootstrap Actions Preparing the Bootstrap Action Script View Execution Records Adding a Bootstrap Action Sample Scripts Modified the following content: Creating a Custom Cluster Creating a Cluster
2018-05-29	Modified the following content: Creating a Cluster Creating a Custom Cluster
2018-03-16	Added the following content: Manually Scaling In a Cluster Configuring an Auto Scaling Rule Configuring Message Notification ALM-12014 Device Partition Lost ALM-12015 Device Partition File System Read-Only ALM-12043 DNS Parsing Duration Exceeds the Threshold ALM-12045 Read Packet Dropped Rate Exceeds the Threshold ALM-12046 Write Packet Dropped Rate Exceeds the Threshold ALM-12047 Read Packet Error Rate Exceeds the Threshold ALM-12048 Write Packet Error Rate Exceeds the Threshold ALM-12049 Read Throughput Rate Exceeds the Threshold ALM-12050 Write Throughput Rate Exceeds the Threshold ALM-12051 Disk Inode Usage Exceeds the Threshold ALM-12052 Usage of Temporary TCP Ports Exceeds the Threshold ALM-12053 File Handle Usage Exceeds the Threshold ALM-12054 The Certificate File Is Invalid ALM-12055 The Certificate File Is About to Expire ALM-18008 Heap Memory Usage of Yarn ResourceManager Exceeds the Threshold ALM-18009 Heap Memory Usage of MapReduce JobHistoryServer Exceeds the Threshold ALM-20002 Hue Service Unavailable ALM-43001 Spark Service Unavailable ALM-43006 Heap Memory Usage of the JobHistory Process Exceeds the Threshold ALM-43007 Non-Heap Memory Usage of the JobHistory Process Exceeds the Threshold ALM-43008 Direct Memory Usage of the JobHistory Process Exceeds the Threshold ALM-43009 JobHistory GC Time Exceeds the Threshold ALM-43010 Heap Memory Usage of the JDBCServer Process Exceeds the Threshold ALM-43011 Non-Heap Memory Usage of the JDBCServer Process Exceeds the Threshold ALM-43012 Direct Memory Usage of the JDBCServer Process Exceeds the Threshold ALM-43013 JDBCServer GC Time Exceeds the Threshold Modified the following content: Creating a Cluster Uploading Data and Programs Creating a Job Cluster List Checking the Cluster Status Creating a Custom Cluster Viewing Basic Cluster Information Manually Scaling Out a Cluster Importing and Exporting Data Viewing Information of a Historical Cluster Accessing MRS Manager (MRS 2.x or Earlier) Changing the Password of an Operation User Initializing the Password of a System User
2018-01-31	Modified the following contents: Accessing MRS Manager (MRS 2.x or Earlier) Creating a Custom Cluster
2017-11-08	Added the following content: Web UIs of Open Source Components Modified the following contents: Creating a Cluster Creating a Custom Cluster Viewing Basic Cluster Information Manually Scaling Out a Cluster Viewing the Alarm List Viewing Information of a Historical Cluster Viewing Job Configuration and Logs
2017-06-09	Added the following content: Viewing Information of a Historical Cluster Configuring Cross-Cluster Mutual Trust Relationships Configuring Users to Access Resources of a Trusted Cluster Modified the following contents: Uploading Data and Programs Creating a Job Creating a Custom Cluster Installing a Client (Version 3.x or Later) Installing a Client (Versions Earlier Than 3.x)
2017-04-06	Added the following content: Accessing MRS Manager (MRS 2.x or Earlier) MRS Multi-User Permission Management Modified the following contents: Creating a Custom Cluster Manually Scaling Out a Cluster Viewing Basic Cluster Information Viewing and Manually Clearing an Alarm
2017-02-20	This issue is the first official release.

last updated: 2024-05-18 02:06