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How to fix SQLCODE -911 Db2 deadlock issue from CDC for Db2 log reader?

Question & Answer


Question


Received QLCODE=-911 message from the source log reader when IIDR Db2 LUW is working as source, the message example like the following:

SHAREDSCRAPE LOG READER FOR NODE 0{529183} com.datamirror.ts.eventlog.EventLogger logActualEvent() Event logged: ID=2901 MSG=The log reader has encountered a problem reading the log file. An error has occurred in the log reader. The SQL error code is '-911'. The SQL state is: 40001. The error message is: "The current transaction has been rolled back because of a deadlock or timeout. Reason code "68".. SQLCODE=-911, SQLSTATE=40001, DRIVER=4.31.10". java.sql.SQLTransactionRollbackException The current transaction has been rolled back because of a deadlock or timeout. Reason code "68".. SQLCODE=-911, SQLSTATE=40001, DRIVER=4.31.10| at com.ibm.db2.jcc.am.b7.a(b7.java:797)| at com.ibm.db2.jcc.am.b7.a(b7.java:66)| at com.ibm.db2.jcc.am.b7.a(b7.java:140)| at com.ibm.db2.jcc.am.ResultSet.completeSqlca(ResultSet.java:4329)| at com.ibm.db2.jcc.t4.ac.h(ac.java:300)| at com.ibm.db2.jcc.t4.ac.a(ac.java:256)| at com.ibm.db2.jcc.t4.ac.c(ac.java:31)| at com.ibm.db2.jcc.t4.q.a(q.java:32)| at com.ibm.db2.jcc.t4.h.readFetch_(h.java:266)| at com.ibm.db2.jcc.am.ResultSet.flowFetch(ResultSet.java:4065)| at com.ibm.db2.jcc.t4.c.f(c.java:2447)| at com.ibm.db2.jcc.am.bi.a(bi.java:257)| at com.ibm.db2.jcc.t4.c.a(c.java:129)| at com.ibm.db2.jcc.am.ResultSet.nextX(ResultSet.java:464)| at com.ibm.db2.jcc.am.ResultSet.next(ResultSet.java:383)| at com.datamirror.ts.jdbc.CdcResultSet.next(CdcResultSet.java:517)| at com.datamirror.ts.jdbc.db2.Db2CdcResultSet.next(Db2CdcResultSet.java:1059)| at com.datamirror.ts.jdbc.CdcJdbcResultSet.next(CdcJdbcResultSet.java:501)| at com.datamirror.ts.scrapers.db2udbscraper.RecordReader.checkIfNewPartitionAdded(RecordReader.java:711)| at com.datamirror.ts.scrapers.db2udbscraper.RecordReader.reloadPartitionIdsIfNecessary(RecordReader.java:2460)| at com.datamirror.ts.scrapers.db2udbscraper.RecordReader.readNextLogRecord(RecordReader.java:612)| at com.datamirror.ts.scrapers.db2udbscraper.Db2udbLogReader.readLog(Db2udbLogReader.java:323)| at com.datamirror.ts.scrapers.cdc.LogReader.execute(LogReader.java:394)| at com.datamirror.ts.scrapers.cdc.LogReader$LogReaderPipelineJob.execute(LogReader.java:112)| at com.datamirror.ts.engine.component.PipelineThread.runThread(PipelineThread.java:217)| at com.datamirror.ts.util.TsThread.run(TsThread.java:130)

How to fix or work around the issue?

[{"Type":"MASTER","Line of Business":{"code":"LOB10","label":"Data and AI"},"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSTRGZ","label":"InfoSphere Data Replication"},"ARM Category":[{"code":"a8m0z000000cws5AAA","label":"Db2 for LUW"}],"ARM Case Number":"TS012911427","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF016","label":"Linux"},{"code":"PF033","label":"Windows"}],"Version":"11.3.3;11.4.0"}]

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Document Information

More support for:
InfoSphere Data Replication

Component:
Db2 for LUW

Software version:
11.3.3, 11.4.0

Operating system(s):
AIX, Linux, Windows

Document number:
7009317

Modified date:
05 July 2023

UID

ibm17009317

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