Author: Adam Leszczyński <aleszczynski@bersler.com>, version: 1.9.0, date: 2026-02-19 |
This document describes the release notes of OpenLogReplicator.
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fix: empty command line argument prints help message
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documentation refresh
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enhancement: added service state metrics
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OpenLogReplicator.json: move memory, metrics, state parameters to global
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fix: lowercase owner/table names in config file were not handled properly
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enhancement: added new format for Debezium output
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enhancement: printing information about new client network connection
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fix: false-positive warnings appearing in offline mode:
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enhancement: added support for big endian systems (like Arm64) for streaming to Debezium
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enhancement: extended tracing options and updated trace-related messages
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enhancement: new format for XID field in output
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enhancement: unified transaction attribute names
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enhancement: new formatting options for timestamp values
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enhancement: printing hint about permissions for log files when file access error is encountered
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enhancement: immediate graceful shutdown when interrupt signal is received
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enhancement: new format parameter: redo-thread
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enhancement: changed config field content for "scn-type", removed "timestamp-all" and added new field "timestamp-type"
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enhancement: new format parameter: "user-type"
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fix: multitenant db: transaction shared among PDBs causes replication to freeze
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code style cleanup
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fixed some logdump output
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fix: data in subpartition might not be replicated in certain conditions
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minor LOB processing fixes
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enhancement: removed unused con-id parameter
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updated default OCI library version to 23
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minor documentation update
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added support for database version 19.28
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added support for database version 23ai, 26ai
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fix: encrypted tablespace data causes program to stop
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fix: in certain cases, the program might try to process data which is not available causing a crash
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enhancement: the checkpoint file is updated during every redo log switch
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fix: reading archived redo log fails when DB_RECOVERY_FILE_DEST is not set
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fix: discard writer type
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code style cleanup
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fix: minor bug related to DDL processing
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enhancement: print hint about incorrect file permissions
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bug: file writer data is not flushed until the buffer is full
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enhancement: new parameters for writer type "file": "write-buffer-flush-size"
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performance improvements
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minor documentation update
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fix: compiler warnings
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fix: information about changed schema
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code style cleanup
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changed parameters "scn" and "scn-all" → "scn-key"
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enhancement: add key data to messages
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fix: minor bug related to swapping
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enhancement: performance optimizations
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enhancement: add support for DDL text > 4k
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fix: sometimes direct IO was not working
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fix: welcome banner
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code style cleanup
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fix: dump information populated when not enabled
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enhancement: add dictionary values for TIMEZONE database parameter
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enhancement: add parameter -r|--root to disable root check on startup
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fix: in rare cases column value is null instead of actual value
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fix: when a redo log file is truncated, read error might appear
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documentation update
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fix: missing include for some systems
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enhancement: thread performance information
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enhancement: swap memory to disk in low memory situations
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enhancement: add parameter -p
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enhancement: performance optimizations
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enhancement: add offset to payload for debugging purposes
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enhancement: support UPDATE operations for NOT NULL columns with occasional NULL values (experimental)
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enhancement: add JSON validation for invalid tags
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fix: context field contains invalid value
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fix: invalid tag in example json config file
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fix: online redo logs are read in rare cases for archived redo log only mode
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fix: don’t write checkpoint file until the first data chunk is processed
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fix: minor bug related to crash with large number of columns
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fix: error: "parse error, attribute xid: not expected"
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fix: in rare cases, the AFTER value for UPDATE is missing
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code style cleanup
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documentation update
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code style cleanup
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enhancement: new writer type: discard
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minor code optimizations
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fix: minor bug related to binary xmltype
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fix: correctly display database error codes
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fix: static code analyzer warnings
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fix: checkpointing is not working for online mode after restart
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enhancement: add an option to build statically linked binary
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fix: don’t require flag 64 to use experimental XMLTYPE support
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fix: minor bugs related to timestamp formatting
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minor documentation fixes
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enhancement: refactor timestamps, add more output options
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enhancement: collecting metrics using Prometheus
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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"
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fix: date and timestamp with year before 1900 or after 2262 produce incorrect values
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enhancement: unify gencfg.sql script for 11g and 12+
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fix: bad checkpoint file causes startup to fail with no explanation
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fix: fail with a too short field length message
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code style cleanup
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fix: LOB data handling
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enhancement: add session information to output
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enhancement: add row filtering based on condition
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experimental: support for binary xmltype, added document about experimental features
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enhancement: added support for BOOLEAN data type
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enhancement: added support for database version 23c
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database version 23c: set column limit to 4096
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clang-tidy code reformatting
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doc: updated README.md, added reference to a tutorial GitHub project
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fix: PDB/CDB support
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fix: unified comment style
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fix: checkpoint file is not created when no data is replicated after start
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fix: offline startup failed to read redo log files
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fix: DDL operation that rearranges columns is not handled properly
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enhancement: reload config file for schema update after the file is updated
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fix: stacktrace when processing DDL data to protobuf format
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fix: typo in trace message
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enhancement: added more timestamp formatting options
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enhancement: added support for UROWID format
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fix: LOB handing improvement for database version 19c
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enhancement: added timezone field for timestamp with a time zone type
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fix: file writer path handling and file handling fixes
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enhancement: add database name to payload data
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enhancement: add schema information for ddl events
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fix: correctly handling of non-ASCII characters in DDL text
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enhancement: added support for an interval type
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enhancement: added xmltype support
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enhancement: added support for type timestamp with local time zone
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fix: client stream disconnect causes replication to stop
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enhancement: added options interval-ytm and interval-dts to control interval type output format
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fix: minor style fixes
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fix: network client date was not consistent when reconnected
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fix: scn information inconsistency in transaction fix
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enhancement: added flag 2 for "scn-format" field type to control scn values
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enhancement: changed checkpointing mechanism to allow more frequent checkpoints
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experimental: added partial support for binary XMLType data
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enhancement: performance optimizations
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doc: Introduction to OpenLogReplicator
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fix: minor bug related to sending ddl operations to output
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fix: minor parameter validation bug
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fix: minor issue related to sending character data in hex format for debug purposes
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cleanup in parameter names: renamed "max-size" "max-file-size" and "format" to "timestamp-format" for better understanding
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doc: Command Reference Manual
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doc: Log Messages Guide
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doc: Installation Guide
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doc: Release Notes
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doc: Troubleshooting Guide
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doc: User Manual
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fix: treat character decoding issues as warnings
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fix: removed obsolete example file
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fix: removed obsolete files
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changed "trace" parameter to "log-level"
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changed "trace2" parameter to "trace"
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fix: unification of log messages
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change: config file version is "1.2.0"
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fix: changed type of nullable field from numeric to boolean
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fix: uncaught exception in writer module
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fix: protocol buffer message missing scn data
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fix: allow server to handle bad start requests for network mode
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fix: network client display fixes and handle big messages
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fix: network client memory release on error
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change: removed "max-messages", "enable-idempotence" and "brokers" parameters and added "properties" parameter instead
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change: by default checkpoint messages are not sent to output
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fix: compilation error when Kafka is disabled
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fix: checkpoint did not advance when no data was replicated
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debug: trace formatting changes
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enhancement: add handling of OP 26.2 for experimental LOB support
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fix: experimental LOB support
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enhancement: code style corrections
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fix: error handling of incorrect config file
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fix: experimental LOB supports Unicode character decoding
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new feature: basicfile LOB (removed being experimental)
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fix: incorrect checkpoint file when non-ascii characters are used in schema files
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fix: incorrect message printed on error
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fix: allow using stop-* parameters without using schemaless mode
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enhancement: added consistency checks for experimental LOB support
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fix: standardization of output messages
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fix: race condition might result in transaction data loss
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fix: experimental LOB support schema script error
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enhancement: optimized DDL processing speed
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enhancement: added debug info for release builds
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enhancement: added support for database version 19.18 and 21.8
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fix: experimental LOB data missing