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1910169 - How to handle HANA Alert 26: ‘Unassigned volumes’

Symptom

When a volume is not assigned to a service (nameserver, indexserver, statisticeserver, xsengine) alert 26 gets displayed.

This alert will appear in HANA Studio -> Administrator -> Alerts and service (for example: xsengine) is stopped.

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The following trace entry and callstack may be observed in the indexserver :

<date> <time>  e Backup BackupMgrSrc_Container.cpp(00505) : exception 1: no.110029 (Backup/spi/impl/Backup_TopologyService.cpp:71)
Backup is not possible because the volume '1' is not assigned to a service
exception 1: no.110028 (Backup/Manager/impl/Source/BackupMgrSrc_Container.cpp:504)
Orphaned volume with the number '1' found in the topology
exception throw location:
1: 0x00007f7aed37cca1 in Backup::Backup_TopologyService::Backup_TopologyService(unsigned int, ltt::allocator&)+0xa80 at Backup_TopologyService.cpp:71 (libhdbbackup.so)
2: 0x00007f7aed35fd35 in Backup::BackupMgrSrc_Container::prepareVolumesFromTopology(bool, unsigned long, bool)+0x1c1 at BackupMgrSrc_Container.cpp:431 (libhdbbackup.so)
3: 0x00007f7aed46bdc1 in Backup::BackupMgr_Manager::executeSaveData(Backup::BackupMgr_Request&, Backup::BackupMgr_Response&)+0x370 at BackupMgr_Manager.cpp:831 (libhdbbackup.so)
4: 0x00007f7aed477ee6 in Backup::BackupMgr_Manager::handleRequest(Backup::BackupMgr_Request&, Backup::BackupMgr_Response&)+0x492 at BackupMgr_Manager.cpp:499 (libhdbbackup.so)
5: 0x00007f7aed478292 in Backup::BackupMgr_Manager::handleRequest(NameServer::Request&, NameServer::Response&)+0x50 at BackupMgr_Manager.cpp:472 (libhdbbackup.so)
6: 0x00007f7aed311a2f in Backup::Backup_ManagerHandler::handleRequest(NameServer::Request&, NameServer::Response&)+0x1b at Backup_ManagerHandler.cpp:35 (libhdbbackup.so)
7: 0x00007f7aff9a8dc8 in NameServer::TREXNameServer::handleBackupManagerRequest(NameServer::Response&, NameServer::Request&)+0xc4 at TREXNameServer.cpp:16897 (libhdbns.so)
8: 0x00007f7aff9b5070 in NameServer::TREXNameServer::processRequest(NameServer::Request const&, NameServer::Response&, void (NameServer::TREXNameServer::*)(NameServer::Response&, NameServer::Request&))+0x70 at atomic.hpp:1626 (libhdbns.so)
9: 0x00007f7affa0949f in NameServer::TREXNameServer::handle(TrexNet::Request&, TrexService::HandlerContext&)+0x42b at TREXNameServer.cpp:1438 (libhdbns.so)
10: 0x0000555c620652aa in TRexAPI::TREXIndexServer::handle(TrexNet::Request&, TrexService::HandlerContext&)+0x466 at TREXIndexServer.cpp:4982 (hdbnameserver)
11: 0x00007f7adc1f5ba0 in TrexService::WorkerThread::run(void*)+0xae0 at TrexServiceThreads.cpp:586 (libhdbbasement.so)
12: 0x00007f7adc214af1 in TrexThreads::PoolThread::run()+0x830 at PoolThread.cpp:389 (libhdbbasement.so)
13: 0x00007f7adc216590 in TrexThreads::PoolThread::run(void*&)+0x10 at PoolThread.cpp:165 (libhdbbasement.so)
14: 0x00007f7adae7b637 in Execution::Thread::staticMainImp(void**)+0x743 at Thread.cpp:463 (libhdbbasis.so)
15: 0x00007f7adae7ccc8 in Execution::Thread::staticMain(void*)+0x34 at ThreadMain.cpp:26 (libhdbbasis.so)

Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental


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Environment

SAP HANA Database

Product

SAP HANA, platform edition all versions

Keywords

Operations Recommendation; #OpsRec-HANA; configuration; Topology; volume is not assigned; DB crashes; memory errors; service crashes; start missing service; , KBA , HAN-DB-MON , SAP HANA Monitoring , SV-PERF , Performance Problems , Problem

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