db2pd

When multiple DB2? When a user accesses a database concurrently, the lock wait slows down the response. Lock wait is temporary and therefore difficult to capture. However, when a lock wait occurs, the Database Administrator is responsible for determining the cause of the lock wait. This document uses examples to demonstrate how to use the tool for DB2forLinux ?, UNIX ?, AndWindows? Db2pd and db When multiple DB2? When a user accesses a database concur

DB2PD Options for lock monitoring DB2PD is a utility for monitoring various DB2 database activities and troubleshooting. It is a stand-alone utility that starts with the DB2 engine, starting with the DB2 V8.2, and looks and functions like the Informix onstat utility. DB2PD is executed from the command line in an optional interactive mode. The utility runs very f

Brief introduction DB2 UDB V8.2 brings a new tool called DB2PD, which collects statistical information for DB2 instances and databases. Similar to the Onstat tool for Informix®dynamic Server, DB2PD provides more than 20 options for displaying information about database transactions, table spaces, table statistics, dynamic SQL, database configuration, and many other database details. A single

\ NODE0000 \ SQL00001 \ XUXIAOF db2bp.exe 68 * LOCAL. DB2.090817075736 00003 1 0 4464 lock wait 10:53:24. 329893 IBM-L3F6 sample c: \ DB2 \ NODE0000 \ SQL00001 \ This command is always the simplest and most practical step for you to look at the Lock problem. There is no Lock wait in the database. You will know at first glance that if there is a long Lock-waiting (English environment) status or lock wait (Chinese environment) status, the database has locked wait applications. As shown above, t

(4) 0x00000000 (5) 0xFFFFFE0C (6) 0x00000000 Sqlwarn: (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) Ii. DB2PD analysis lock wait The db2pd tool is mainly used to collect statistical information of DB2 instances and databases. The biggest advantage of db2pd is that information is obtained quickly without consuming Database Engine resources. To use this powerful t

This article mainly describes the actual operation steps for identifying tables and packages that DB2 does not use indexes. If you do not use indexes for DB2, if you are interested in the actual operation steps for tables and packages, you can click to view the following articles. We all know that the LASTUSED column tells you the exact time for the last access to the index in the DB2 database. However, this method does not guarantee that an accurate value is returned, because DB2 also regards t

The following article mainly introduces how to find out tables and packages without using indexes in DB2. The following article describes the correct operation content, we all know how to locate tables and packages. We all know that in actual operations, the LASTUSED column mainly tells you the last access time of the index in the DB2 database. However, this method does not guarantee that returns an accurate value. Because DB2 also regards the update time of this column as the access time, but y

BKJIA: From DB2 9.7, you can use the following query to check indexes not used in DB2: SELECTINDSCHEMA,INDNAME,TABNAME FROMSYSCAT.INDEXES WHERELASTUSED='01/01/0001'; The LASTUSED column tells you the last access time of the index in DB2, but this method does not guarantee that returns an accurate value, because DB2 also regards the update time of this column as the access time, however, you can use the db2pd tool to accurately obtain the

"db2pd-db qhbidb -" -- If the status of some nodes is abnormal, you can start the database as follows: $ Db2start dbpartitionnum nodenum -- View the table status Db2 "select tabname, colcount, status from syscat. tables where tabschema not like 'sys % 'order by tabname" Db2 load query table test -- DB2 Status Monitoring $ Db2_ps $ Db2gcf-u-p 0-I qhbiinst Instance: qhbiinst DB2 Start: Success Partition 0: Success Db2 deactivate database name ---------

to attach a shared memory object to a specific address may not be able to do so, resulting in a failure in shmat subroutine. However, on subsequent retry (using a new process) the shared memory attachment may work. The result is a random set of failures. Some processes that have been known to see this error are: db2pd, db2egcf, and db2vend.Some of the behaviors seen include the following:For the db2pd comm

Current_timestamp from ASN. Ibmsnap_register WHERE global_record= ' Y ' with ur " Apply side: DB2 "Select Apply_qual, Set_name, Source_alias, Target_alias, ACTIVATE, STATUS, Lastrun, lastsuccess, Synchtime, Sleep_mi Nutes,refresh_type from ASN. Ibmsnap_subs_set " # # # View HADR Environment $ db2pd-alldbs-hadr Db2pd-db Sfa-hadr # # # # # # # on Server side query node usage space Select Node_name,cast (FLOA

')"db20000i the SQL command completed successfully.$ db2pd-db Qsmiao-locksConclusion: An insert operation requires a table-level IX lock and a row-level x lock.Note: IX lock, the owner of the lock can change the row's data when it has an X lock on the corresponding row.$ DB2 Rollback$ DB2 +c "update student set Name= ' Yan ' where age=5 'db20000i the SQL command completed successfully.$ db2pd-db Qsmiao-loc

successfully.$ db2pd-db Qsmiao-locksConclusion: The insert operation requires a table-level IX lock and a row-level x lock.Note: IX lock. The owner of the lock can change the row's data when it has an X lock on the corresponding row.$ DB2 Rollback$ DB2 +c "update student set Name= ' Yan ' where age=5 'db20000i the SQL command completed successfully.$ db2pd-db Qsmiao-lockswatermark/2/text/ahr0cdovl2jsb2cuy3

. Create a test table: C:\Documents and Settings\administrator>db2 "create table test_log(col int, col2 char(10),col3 timestamp,col4 varchar(100),col5 varchar(100),col6 varchar(100),col7 varchar(100),col8 varchar(100))" The DB20000I SQL command is successfully completed. Create a stored procedure for data insertion: C:\Documents and Settings\administrator>db2 -td@ -vf proc_testlog.sqlcreate procedure proc_testlog(v1 int)begindeclare time int default 0;while (time T

does so, resulting in a failure in Shmat subroutine. However, on subsequent retry (using a new process) the shared memory attachment. The result is a random set of failures. Some processes that has been known to see this error ARE:DB2PD, DB2EGCF, and Db2vend. Some of the behaviors seen include the following:for the DB2PD command, it would report No data found even through the instance/database is active:database SAMPLE not activated on database parti

records have been selected.The lock situation at this time isC:\>db2pd-d Test-lockDatabase Partition 0--Database TEST--Active--up 0 days 00:20:49Locks:Address tranhdl lockname Type Mode Sts OwnerDur Holdcount Att RELEASEFLG0x05190450 2 53514c4332463041f12cf8e241 Internal P.. S G 21 0 0x00 0x40000000In another db2cmd.C:\GT;DB2 +c Update a set a=2Db20000iSQLCommand completed successfully.At this point the lock situation is as followsC:\>

The database has a remote connection to the connection, the state has been loadperforming, lasted for more than a week, suspect that the client from the remote load data when the network exception, resulting in the connection hang.Dear Customer, Hello:The data you uploaded is not helpful for hang's problem. Next time if you have a similar problem, please accept the following data.1. Find the application handle of load hangDB2 list Applications Show Detail |grep db2bp > List_ap.out2.

tryingtoattachasharedmemoryobjecttoaspecific Addressmaynotbeabletodoso,resulting inafailureinshmatsubroutine.However,onsubsequent retry (usinganewprocess) the sharedmemoryattachmentmaywork.theresultisarandom Setoffailures.someprocessesthathavebeenknowntosee thiserrorare:db2pd,db2egcf,anddb2vend. Some of the behaviors seen include the following: For the DB2PD command, it would report no data found even through the instance/database is active

scan problem? 10. How do I find out what SQL statements are being executed by the currently running app in the database? 11. When the database is stuck, what tools need to be used and what data should be collected to do RCA before solving this problem? 12. If there is a problem with high CPU usage in a V9.5 DB2 instance, how will you diagnose it, please outline the idea. 13. How to view Db2diag records since 2014-03-26? 14. How can I tell if the deadlock event monitor Db2detaileddeadlock is tur

modification were not changed dynamically. For these configuration parameters, the database must be shutdown and reactivated before the configuration parameter changes become effective. Listing 2. Deactivate a database 1 2 $ db2 deactivate db hadrdb DB20000I The DEACTIVATE DATABASE command completed successfully. Listing 3. Activating the database 1 2 $ db2 activate db hadrdb DB20000I The ACTIVATE DATABASE command completed success