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Isam Error No More Locks

server has run out of locks, errors 312 and 134 may occur. locks; system catalog; SQL; DROP TABLE; error; 312; 134 Technote (troubleshooting) Problem(Abstract) If a command is issued that needs to acquire a lock on set lock mode to wait informix a system catalog table and the server runs out of locks, errors 312 and 134 informix lock table occur. Resolving the problem PROBLEM When using IBM Informix Dynamic Server™ (IDS) if a command is issued that needs to acquire a lock on a system catalog table and the server runs out of locks errors 312 and 134 occur. Such commands may include, SQL DROP TABLE, EXECUTE PROCEDURE and UPDATE STATISTICS. Here is a description of the errors: -312 Cannot update system catalog table-name. The database server cannot record a change in the system-catalog table. Check the accompanying ISAM error code for more detailed information. Insufficient disk space is a common cause of this error. -134 ISAM error: no more locks. The ISAM processor needs to lock a row or an index page, but no locks are available. The number of locks that an operation requires depends primarily on the number of rows that a single transaction modifies. You can reduce the number of locks that an operation needs by doing less in each transaction or by locking entire tables instead of locking rows. Depending on the implementation that you are using, the number of locks that is available is configured in one of three places: the operating-system kernel, the shared-memory segment, or the database server. Consult your database server administrator about making more locks available. You can confirm whether IDS has run out of locks using one of the following methods: An onstat -p command will show that ovlock is greater than 1. An onstat -k shows the number of locks currently in use. If the active number of locks is close to the total number of locks, the server may be close to running out of locks. The online log displays a message similar to the following: 09:39:09 Lock table overflow - user id 200, session id 1837722 CAUSE When the database server needs to perform an update on a system catalog table, it will try to acquire locks to access or update the information in those tables. If there are not enough locks then these errors may occur. SOLUTION The LOCKS parameter should be increased in the $ONCONFIG file then the Informix server should be brought offline and online. This will increase the maximum number of locks that the server can allocate. Document information More support for: Informix Servers Software version: 7.3,

most common problems experienced is that transaction logging becomes a major issue. If you do have to use logging, HEED THESE WORDS: Make your logs big. Very big. Huge. Make lots of logs. Plenty. Run continuous backups. Continuously. Lower the default Transaction high water marks from: LTXHWM 80 # Long TX high-water mark (percent) LTXEHWM 90 # Long TX exclusive high-water mark (percent) to: LTXHWM 70 # Long TX high-water mark (percent) LTXEHWM 80 # Long TX exclusive high-water mark (percent) A small band of merry men ran forth and insisted that these LTX* figures need to go still lower: But Jim Frison ([email protected]) clearly had other experiences: Long transactions and completely locked up Informix systems have been the bane of my http://www.ibm.com/support/docview.wss?uid=swg21198256 existence for the last two years. I strongly recommend that the defaults be revised to lower values. We gradually reduced them to their current levels (LTXHWM=65, LTXEHWM=75) and I am tempted to take them to 60,70 to feel safer. We have 8 logs and definitely ran into trouble at 70, 80. Change the defaults. Note: Ken Miles ([email protected]) uses: LTXHWM 40 # Long TX high-water mark (percent) LTXEHWM 65 # Long TX exclusive high-water mark (percent) They deadlocked with http://www.iiug.org/faqs/informix-faq/ifaq06a.htm.1 the 70/80 settings. Indeed, Clem W. Akins ([email protected]) claims that the high-water marks should be less than 50%, to allow a roll-back. Have enough logs that whatever number you choose is enough for your largest long transaction. 70/80 is not nearly low enough. Johnathan Leffler ([email protected]) suggests that: That with a reasonable log configuration (say more than 4 logs), the 70/80 limit is very unlikely to run you into trouble, unless you are mass inserting or deleting extremely small records (say 1-8 bytes, though I'm tempted to suggest 1-4 bytes). I do not recall seeing systems run into trouble with 80/90 figures which are the default in tbconfig.std. Reducing these parameters to less than 50% is not something I'd recommend; there is definitely an upper-limit on how much log space you can require to do a rollback, because the CLM records (which are the cause of the trouble) are of finite size (16 bytes, if memory serves me right), and there is at most on CLM for each operation performed by the user, and each operation has a 12 byte header plus some data, such as the whole record which is inserted or deleted, or both the before and after image for an updated record. Unless these records are tiny, the amount of space used to generate the LTX dwarfs the amount of space needed to rollback. I suppose that if you have multiple us

multiple users to access the same rows of data is known as concurrency. Concurrency control is essential for performance and integrity. Informix handles concurrency through http://www.informix.com.ua/articles/conclock/conclock.htm various strategies, which will be described in this article. Locking

Informix uses different locking strategies to control concurrency. It is very important that you consider these locking strategies when designing any multi-user application. Locks can be placed on these types of objects: databases, tables, pages, and rows. Here are the three types of locks that can be applied to these objects: 1. Shared. A shared lock isam error is essentially a read-only lock on an object. It allows you to read the object and also allows others to place shared locks on the object. No one can update the object when a shared lock exists on it. 2. Exclusive. An exclusive lock gives the user exclusive access to the object. This type of lock is used when the user is going to change the object. isam error no No other locks are allowed when an exclusive lock exists. If an exclusive lock is attempted and a shared lock exists, an error will occur if the lock is not released before the wait time expires (see "lock wait times" below). 3. Promotable. A promotable lock is a hybrid between a shared and exclusive lock. This lock only applies to rows. The user is basically saying "I want to update this row, but not right now." This type of lock can be placed when shared locks already exist on the data. When the user fetches the row, a shared lock is obtained. When he is about to update the row, the lock is upgraded to an exclusive lock and no other lock (not even shared) can exist. Here is a description of how each of the objects interact with locking: Database - Simply opening a database (with a "DATABASE dbname" statement) places a shared lock on the database. To exclusively lock a database, use the "DATABASE dbname EXCLUSIVE" command. An exclusive lock is automatically placed on a database by commands such as dbexport and onunload.

Table - You can lock a table with the LOCK TABLE command. A tab

 

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Informix Isam Error p p p - ISAM error too many files open - ISAM error bad ISAM file format - ISAM error non-exclusive access - ISAM error record is locked - ISAM error key already exists - ISAM error the key is the file's primary key - ISAM error end or beginning of the file - ISAM error no record found - ISAM error there is no current record - ISAM error the file is locked - ISAM error the a href https www ibm com support knowledgecenter en SSGU G com ibm em doc errors html https www

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Informix Error p p p Sep - telecompaper - Shaspa and Tatung have shown a new smart home platform at Ifa in p Isam Error Record Is Locked Informix p Berlin Powered by the IBM Informix software Read b Sep - IBM could not do an indexed read to get the next row data magazine - Mission Accomplished - Miami Florida will be the backdrop for the IIUG Informix Conference Read b p Informix Lock Mode p Feb - IBM Data Magazine - Are your database backups safe Lester Knutsen IBM Champion writes about database back up safety using archecker

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Informix Isam Error No Record Found p p p here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn p Informix Sqlcode p more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of million programmers just like you helping each other Join them it only takes a minute Sign up

informix isam error key value locked

Informix Isam Error Key Value Locked p but a transaction that has not yet been committed has deleted that key value from the index This informix isam error record is locked error occurs only when the lock mode is set to NOT WAIT Treat it the same as error - record is locked Roll back the current transaction and re-execute it after a delay Then if the other transaction was committed the lock no longer exists If it was rolled back the key exists and this operation receives a duplicate-key error Copyright Privacy p p error key value locked If

isam error no free disk space

Isam Error No Free Disk Space p disk space rdquo executing an archive of the IBM Informix Dynamic Server IDS instance free disk space archive Technote troubleshooting Problem Abstract This document explains how to avoid the interruption of the IBM IDS backup due a lack of temporal space while the archive is running An archive process stops and you get these errors Archive failed - ISAM error no free disk space or Error no room left on device - - Unable to get storage space backup data from the database server ISAM error no free disk space Cause The problem

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Isam Error Non-exclusive Access p You are trying to run an ALTER TABLE command on a table but you see these errors - SQL error Could not open database table - ISAM error non-exclusive access There are no locks on the table This is happening although you possibly have one or both of these set SET LOCK MODE TO WAIT LOCK TABLE tab IN EXCLUSIVE MODE Cause You do not have exclusive access to the table This means there is a lock on the table or there is a select running on the table An ALTER TABLE operation has a

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Isam Error Operation Illegal On A Dr Secondary p on a Secondary Server temp temporary create secondary table Technote troubleshooting Problem Abstract Your secondary server is up and running but when you try to create a temporary table you receive errors - and- Symptom From a Secondary Server you try to run a statement that creates a temp table similar the following 'select from tableName into temp tempTable ' Database selected Could not open or create a temporary file ISAM error operation illegal on a DR Secondary Error in line Near character position Database closed Cause If logging is enabled

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Isam Error Dbspace Table Overflow p - ISAM error too many files open - ISAM error bad ISAM file format - ISAM error non-exclusive access - ISAM error record is locked - ISAM error key already informix sql error code - exists - ISAM error the key is the file's primary key - ISAM error p Isam Error Codes p end or beginning of the file - ISAM error no record found - ISAM error there is no current record - ISAM p Informix Finderr p error the file is locked - ISAM error the file name is too long

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Isam Error In Vb net p here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of million programmers just like you helping each other Join them it only takes a minute Sign up what to do now with ldquo COULD

isam error bad isam file format

Isam Error Bad Isam File Format p - Technote troubleshooting Problem Abstract You execute a query and it returns SQL error - Could not insert new row into the table The SQL error is accompanied by ISAM error - bad isam file format or ISAM error - illegal key descriptor Symptom Your SQL query and oncheck -cDI returns one of the following two sets of errors SQL error - and ISAM - Query Could not insert new row into the table ISAM error bad isam file format Oncheck Validating indexes for testdb informix tab Index tab idx Index fragment partition

isam error the file is locked informix

Isam Error The File Is Locked Informix p locking a tablename lok file exists Possibly such a file was left behind when another program informix could not position within a file via an index terminated abnormally If you are sure that is the case you can could not do a physical-order read to fetch next row informix release the lock by emptying that file Lock files are not used in many systems and they are could not position within a table informix never used with IBM Informix Dynamic Server or IBM Informix OnLine Dynamic Server This error occurs with IBM

isam error database is locked pending change to logging mode

Isam Error Database Is Locked Pending Change To Logging Mode p If this is your first visit be sure to check out the FAQ by clicking the link above You may have to register before you can post click the register link above to proceed To start viewing messages select the forum that you want to visit from the selection below Results to of Thread ISAM error Database is locked pending change to logging mode Tweet Thread Tools Show Printable Version Subscribe to this Thread hellip Search Thread Advanced Search Display Linear Mode Switch to Hybrid Mode Switch to Threaded

isam error dbspace is full

Isam Error Dbspace Is Full p a log of the size specified This error also occurs if you attempt to create a temporary table with log the default log setting for temporary tables when the DBSPACETEMP variable in ONCONFIG is set to TEMP or NOTCRITICAL To add the logical log either add one or more chunks to the dbspace or specify a smaller log size p To create temporary tables either set DBSPACETEMP to ALL or create temporary tables with no log p - Smart Disk Error p An error has occurred with the Smart Disk system For more information

isam error primary and mirror chunks are bad

Isam Error Primary And Mirror Chunks Are Bad p password Frontpage Sponsor Main Frontpage Forum Jobs NewsStories RSS NewsfeedsCategoriesERP Geek Industry Technology Opinion Security Sources Calendar Polls Shop Web Links Baanboard at LinkedIn Reference Content BaanERP Tutorial Programmer's Manual Thread Tools Display Modes th March kswong Junior Member Join Date Jun Location Penang Malaysia Posts Baan Baan IVc - DB INFORMIX - OS HP-UX INFORMIX- Onspaces Error we managed to bring online chunks out of using onspaces command One chunk datdbs has this error when we tried to bring it online ISAM Error Primary and mirror chunks are bad -----------------

isam error no such dbspace

Isam Error No Such Dbspace p Problem Abstract You run a CREATE TABLE command using the IN clause but see errors and Symptom Cannot create file for table owner tablename ISAM error no such DBspace Cause You are trying to create a table in a dbspace that does not exist Resolving the problem Create the table in an existing dbspace Run onstat -d for a list of dbspaces onstat -d command Print chunk information Create the dbspace you specified in the CREATE command using onspaces Then rerun your CREATE statement onspaces -c -d Create a dbspace Document information More support

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Isam Error Socket Is Not Connected p format error - Bad file number - No children - No more processes - Not informix sql error codes enough core - Permission denied - Bad address - Block device required p Isam Error Codes p - Mount device busy - File exists - Cross-device link - No such device - Not a directory - informix isam error Is a directory - Invalid argument - File table overflow - Too many open files - Not a typewriter - Text file busy - File too large - No space left informix isam error -

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Isam Error Informix p p p informix dynamic server ids deadlock wait ISAM - - - - set lock set lock mode lock mode Technote FAQ Question How does informix finderr IBM Informix Dynamic Server IDS handle and avoid deadlocks Answer INTRODUCTION A deadlock informix sqlcode is a circular wait condition When a deadlock occurs a user is waiting on a resource that cannot be forms statement error number freed until he releases a resource he owns He cannot release a resource while he is waiting Many times you can eliminate frequent lock contention by using row level locks as

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Isam Error No Shared Memory p server has run out of locks errors and may occur locks system catalog SQL DROP TABLE error Technote troubleshooting Problem Abstract If a p Informix Sql Error Code - p command is issued that needs to acquire a lock on a system catalog table isam error codes and the server runs out of locks errors and occur Resolving the problem PROBLEM When using IBM Informix informix finderr Dynamic Server IDS if a command is issued that needs to acquire a lock on a system catalog table and the server runs out of locks errors

isam error no free disk space for sort

Isam Error No Free Disk Space For Sort p disk space rdquo executing an archive of the IBM Informix Dynamic Server IDS instance free disk space archive Technote troubleshooting Problem Abstract This document explains how to avoid the interruption of the IBM IDS backup due a lack of temporal space while the archive is running An archive process stops and you get these errors Archive failed - ISAM error no free disk space or Error no room left on device - - Unable to get storage space backup data from the database server ISAM error no free disk space Cause

isam error primary and mirror chunks are bad informix

Isam Error Primary And Mirror Chunks Are Bad Informix p password Frontpage Sponsor Main Frontpage Forum Jobs NewsStories RSS NewsfeedsCategoriesERP Geek Industry Technology Opinion Security Sources Calendar Polls Shop Web Links Baanboard at LinkedIn Reference Content BaanERP Tutorial Programmer's Manual Thread Tools Display Modes th March kswong Junior Member Join Date Jun Location Penang Malaysia Posts Baan Baan IVc - DB INFORMIX - OS HP-UX INFORMIX- Onspaces Error we managed to bring online chunks out of using onspaces command One chunk datdbs has this error when we tried to bring it online ISAM Error Primary and mirror chunks are bad

isam error non-exclusive access. informix

Isam Error Non-exclusive Access Informix p DDL statement alter index lock ddl lock mode ids informix dynamic server IFX DIRTY WAIT Technote troubleshooting Problem Abstract You receive the following error message when executing a Data Definition Language DDL statement ISAM error non-exclusive access Cause This error can occur because other sessions are querying the same table with their isolation level set to 'dirty read' DDL commands change a table's structure and therefore require exclusive access to the table However this cannot be achieved if there are sessions currently accessing the table NOTE Using the SET LOCK MODE command will not

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Isam Error Vb p an ISAM installable indexed sequential access method has several possible causes If the data source is a Microsoft Office file xslx or accdb install the -bit version of the Microsoft Access Database Engine Redistributable from the Microsoft Download Center http www microsoft com en-us download details aspx id If the data source is a Microsoft Office file xlsx or accdb install the Office System Driver Data Connectivity Components from the Drivers page If your data source is not a Microsoft Office file or if installing the Office System Driver does not resolve the issue review the

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Java sql sqlexception Isam Error p allowed The local database server assumes that a distributed deadlock exists and informix isam error - codes that this user request is awaiting a resource that was locked by a user in a different system which is awaiting a resource that this user owns p Informix Sqlca p Roll back the current transaction and retry it after a delay If this error occurs frequently ask the database server administrator to adjust the length of the deadlock time-out interval This code is also returned when an explicit wait time limit expires that is if you

java.sql.sqlexception isam error key value locked

Java sql sqlexception Isam Error Key Value Locked p a record Technote troubleshooting Problem Abstract Locked record errors - and - or - and - when updating a informix could not position within a file via an index record Symptom - Could not do a physical-order read to fetch next could not do a physical-order read to fetch next row informix row - ISAM error record is locked - Could not position within a file via an index - could not position within a table informix ISAM error key value locked Cause Row page or table is locked Diagnosing the