3287948 - IQ server goes to abort/no response while free list error occurs - IQ

• Checkpoint encountered error, Verify error: free list bad leaf bit count
  ..Chk
  ..ChkDone [NumTxnCP: 3]
  ..IQ Checkpoint block: 81954
  ..PostChk
  ..slib/s_bmfreelist.cxx:1910 [this=0x7fbda3747630,bm=0x7fbe0434b758] Verify error: free list bad leaf bit count (found = 0 (0x0)recorded = 242855326 (0xe79ad9e) bad count was in lev1 = 8 (0x8), lev2 = 18446744073709551615 (0xffffffffffffffff)
  
  

• Checkpoint encountered error, Verify error: free list has nonexistent slice 0
  ..IQ Checkpoint position: 0
  ..[QMap] s_dbmvbio::DeAllocate(0x7fda801e52c8): Freelist blocks are already deallocated. beforeCount =14584162 afterCount =14584158
  ..slib/s_bmfreelist.cxx:1884 [this=0x7fd9b4a347b0,bm=0x7fda804f1778] Verify error: free list has nonexistent slice 0 (0x0) of leaf entry 0 (0x0), lev2 = 18446744073709551615 (0xffffffffffffffff)

• Have a run away query, FREELIST ASSERTION REPORT
  ..Cmt 749801683 Txn 749801194
  ..TINFO t=749801194 v=749801194 c=749801683 gt=0 gc=0 pcv=0 ME=0 MSE=0 TRR=0 #=0
  ..FREELIST ASSERTION REPORT slib/s_bm.cxx:1941
  ..Internal method: s_bm::FindHoleSetBits(hos_recid startBit, hos_recid nbits, hos_recid max)
  ..** Non-Fatal IQ Internal Error Detected
  ..** at slib/s_bm.cxx:1973 on thread 140149588358912 (TID 118)
  ..** Bitmap result bitcount not in legal range.

• sp_iqcheckdb 'allocation database', sp_iqcheckdb 'verify database', sp_iqcheckdb 'dropleak database' don't report any error.

• OS message don't report any error during the time period the problem occurs.

SAP IQ 16.1

CR827546, CR#827546, 827546, freelist, , KBA , BC-SYB-IQ , Sybase IQ , Known Error