Common errors of dmrman offline backup

We are using DMRMAN Tools always encounter various problems when backing up offline , Today, I sorted out the following common problems and solutions , For your reference .

Common mistakes

[-7103]: Failed to create named pipe

【 Problem phenomenon 】：

Winning Qilin 7 Environmental Science , Jiangdameng database bin Configure the path to the environment variable path in , It can be executed in any directory DMRMAN command , But to enter DMRMAN Then execute the backup command , There will be an error as follows ：[-7103]: Failed to create named pipe .

【 Question why 】：

When executed DMRMAN Command backup , Will be based on DMRMAN Find the path where the command is located DM_PIPE_ Pipeline file at the beginning , Not through path Set the environment variable path to find the corresponding pipeline file ,DM_PIPE_ Usually in bin Generate under directory .

【 resolvent 】：

Use DM Install users dmdba Get into DM install bin Under the table of contents start-up DMRMAN Tools , Executing the backup script prompts success .

[-7105]: Pipe connection timeout

【 Problem phenomenon 】：

Winning Qilin 7 Environmental Science , Use root User start DMRMAN Tools , An error is reported when executing the backup command [-7105]: Pipe connection timeout .

【 Question why 】：

root The user is not DM Database installation user , Out of commission root start-up DMRMAN Tools .

【 resolvent 】：

Use DM Install users dmdba start-up DMRMAN Tools , Executing the backup command is normal .

[-8109]: establish dmap Pipeline failure ,

Please check dmap Has it been started?

【 Problem phenomenon 】：

Winning Qilin 7 Environmental Science ,dmdba stay bin Start... In the directory DMRMAN Tools , An error is reported when executing the backup command [-8109]: establish dmap Pipeline failure .

【 Question why 】：

Has not started DmAPService service .

【 resolvent 】：

Use root The user executes the following command start-up DmAPService service . It is normal to execute the backup command after startup .

[[email protected]~]# systemctl start DmAPService.service

If so Windows10 In the environment ,DmAPService Service started , Still report this error , Please use Run as administrator cmd command ; Similarly, if this error is reported on the console tool , Please use Run as administrator Console tools .

[-137]: The server is running or

There are other processes operating on the same library

【 Problem phenomenon 】：

Winning Qilin 7 Environmental Science , When the database instance service is on , Use dmdba The user is in bin Start... In the directory DMRMAN Tools , An error is reported when executing the backup command [-137]: The server is running or there are other processes operating on the same library .

【 Question why 】：

DmServerDMSERVER The service is not shut down .DMRMAN Is offline backup , Be sure to close the database during backup .

【 resolvent 】：

Use root Execute the following command Shut down the database instance service （DMSERVER Is the database instance name ） that will do .

[[email protected]~]# systemctl stop DmServiceDMSERVER.service

[-135]: Failed to create semaphore

【 Problem phenomenon 】：

Windows10 Environmental Science , When the database instance service is on , stay bin Start... In the directory DMRMAN Tools , An error is reported when executing the backup command [-135]: Failed to create semaphore .

【 Question why 】：

ditto ,DmServerDMSERVER The service is not shut down .

【 resolvent 】：

Use DM The service viewer closes DmServerDMSERVER service .

DMRMAN Backup Usage Summary

Last , Let's summarize , Use DMRMAN matters needing attention ：

1. DMRMAN It is an offline backup tool , When using its backup, you need to close the database instance ;

2. Default DMRMAN Use DmAPService Service backup database , So use DMRMAN To be guaranteed DmAPService It's on .

Pipeline connection failure related errors are basically related to DmAPService Service related . In the process of investigation DmAPService It's already started , If such errors are still reported , You can try to restart DmAPService service ,Windows The system can be tried “ Run as administrator ”.

3. start-up DMRMAN Need to use DM The installation user is installing bin Start... In the directory .

Be careful ： Above is DMRMAN Backup in DM8 Problem phenomenon in version ,DM7 edition DMRMAN The backup error code and error description will be different , But the solution is similar . such as [-7109]: Pipe connection failed , The cause of the problem may be DmAPService Not open or not in bin Start... In the directory DMRMAN;DM7 start-up DmAPService The service may report an error [-7157]: Pipeline file already exists , You need to delete it bin Under the table of contents DM_PIPE_DMAP_LSNR_RD and DM_PIPE_DMAP_LSNR_WR Two documents .