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Release Notes

Autor: Adam Leszczyński <aleszczynski@bersler.com>, version: 1.6.1, date: 2024-06-01

This document describes the release notes of OpenLogReplicator.

Table of Contents

Major Release 1.x

Version 1.6.1

  • fix: welcome banner

Version 1.6.0

  • enhancement: add parameter -p

  • enhancement: performance optimizations

  • enhancement: add offset to payload for debugging purposes

  • enhancement: support UPDATE operations for NOT NULL columns with occasional NULL values (experimental)

  • enhancement: add JSON validation for invalid tags

  • fix: context field contains invalid value

  • fix: invalid tag in example json config file

  • fix: online redo log are read in rare cases for archived redo log only mode

  • fix: don’t write checkpoint file until the first data chunk is processed

  • fix: minor bug related to crash with large number of columns

  • fix: error: "parse error, attribute xid: not expected"

  • fix: in rare cases, the AFTER value for UPDATE is missing

  • code style cleanup

  • documentation update

Version 1.5.0

  • code style cleanup

  • enhancement: new writer type: discard

  • minor code optimizations

  • fix: minor bug related to binary xmltype

  • fix: correctly display Oracle error codes

  • fix: static code analyzer warnings

  • fix: checkpointing is not working for online mode after restart

  • enhancement: add an option to build statically linked binary

  • fix: don’t require flag 64 to use experimental XMLTYPE support

  • fix: minor bugs related to timestamp formatting

  • minor documentation fixes

  • enhancement: refactor timestamps, add more output options

  • enhancement: collecting metrics using Prometheus

  • configuration change: moved memory options "memory-max-mb", "memory-min-mb", "read-buffer-max-mb" to "memory" group and renamed to "max-mb", "min-mb"

Version 1.4.0

  • fix: date and timestamp with year before 1900 or after 2262 produce incorrect values

  • enhancement: unify gencfg.sql script for 11g and 12+

  • fix: bad checkpoint file causes startup to fail with no explanation

  • fix: fail with a too short field length message

  • code style cleanup

  • fix: LOB data handling

  • enhancement: add session information to output

  • enhancement: add row filtering based on condition

  • experimental: support for binary xmltype, added document about experimental features

  • enhancement: added support for BOOLEAN data type

  • enhancement: added support for Oracle 23c

  • Oracle 23c: set column limit to 4096

  • clang-tidy code reformatting

Version 1.3.0

  • doc: updated README.md, added reference to a tutorial GitHub project

  • fix: PDB/CDB support

  • fix: unified comment style

  • fix: checkpoint file is not created when no data is replicated after start

  • fix: offline startup failed to read redo log files

  • fix: DDL operation that rearranges columns is not handled properly

  • enhancement: reload config file for schema update after the file is updated

  • fix: stacktrace when processing DDL data to protobuf format

  • fix: typo in trace message

  • enhancement: added more timestamp formatting options

  • enhancement: added support for UROWID format

  • fix: LOB handing improvement for Oracle 19c

  • enhancement: added timezone field for timestamp with a time zone type

  • fix: file writer path handling and file handling fixes

  • enhancement: add database name to payload data

  • enhancement: add schema information for ddl events

  • fix: correctly handling of non-ASCII characters in DDL text

  • enhancement: added support for an interval type

  • enhancement: added xmltype support

  • enhancement: added support for type timestamp with local time zone

  • fix: client stream disconnect causes replication to stop

  • enhancement: added options interval-ytm and interval-dts to control interval type output format

  • fix: minor style fixes

  • fix: network client date was not consistent when reconnected

  • fix: scn information inconsistency in transaction fix

  • enhancement: added flag 2 for "scn-format" field type to control scn values

  • enhancement: changed checkpointing mechanism to allow more frequent checkpoints

  • experimental: added partial support for binary XMLType data

  • enhancement: performance optimizations

Version 1.2.0

  • doc: Introduction to OpenLogReplicator

  • fix: minor bug related to sending ddl operations to output

  • fix: minor parameter validation bug

  • fix: minor issue related to sending character data in hex format for debug purposes

  • cleanup in parameter names: renamed "max-size" "max-file-size" and "format" to "timestamp-format" for better understanding

  • doc: Command Reference Manual

  • doc: Log Messages Guide

  • doc: Installation Guide

  • doc: Release Notes

  • doc: Troubleshooting Guide

  • doc: User Manual

  • fix: treat character decoding issues as warnings

  • fix: removed obsolete example file

  • fix: removed obsolete files

  • changed "trace" parameter to "log-level"

  • changed "trace2" parameter to "trace"

  • fix: unification of log messages

  • change: config file version is "1.2.0"

  • fix: changed type of nullable field from numeric to boolean

  • fix: uncaught exception in writer module

  • fix: protocol buffer message missing scn data

  • fix: allow server to handle bad start requests for network mode

  • fix: network client display fixes and handle big messages

  • fix: network client memory release on error

  • change: removed "max-messages", "enable-idempotence" and "brokers" parameters and added "properties" parameter instead

  • change: by default checkpoint messages are not sent to output

  • fix: compilation error when Kafka is disabled

  • fix: checkpoint did not advance when no data was replicated

Version 1.1.0

  • debug: trace formatting changes

  • enhancement: add handling of OP 26.2 for experimental LOB support

  • fix: experimental LOB support

  • enhancement: code style corrections

  • fix: error handling of incorrect config file

  • fix: experimental LOB supports Unicode character decoding

  • new feature: basicfile LOB (removed being experimental)

Version 1.0.1

  • fix: incorrect checkpoint file when non-ascii characters are used in schema files

  • fix: incorrect message printed on error

  • fix: allow using stop-* parameters without using schemaless mode

  • enhancement: added consistency checks for experimental LOB support

  • fix: standardization of output messages

  • fix: race condition might result in transaction data loss

  • fix: experimental LOB support schema script error

  • enhancement: optimized DDL processing speed

  • enhancement: added debug info for release builds

  • enhancement: added support for Oracle 19.18 and 21.8

  • fix: experimental LOB data missing

Version 1.0

This is the first public release of OpenLogReplicator.