Here are 2 cores seen on the v0303 build installed on a 4-node HortonWorks cluster:

(gdb) bt
#0  0x00007ffff4a458a5 in raise () from /lib64/libc.so.6
#1  0x00007ffff4a4700d in abort () from /lib64/libc.so.6
#2  0x00007ffff5b4ea55 in os::abort(bool) ()
   from /usr/java/jdk1.7.0_67/jre/lib/amd64/server/libjvm.so
#3  0x00007ffff5ccef87 in VMError::report_and_die() ()
   from /usr/java/jdk1.7.0_67/jre/lib/amd64/server/libjvm.so
#4  0x00007ffff5b5396f in JVM_handle_linux_signal ()
   from /usr/java/jdk1.7.0_67/jre/lib/amd64/server/libjvm.so
#5  <signal handler called>
#6  0x00007ffff2e16261 in ExHbaseAccessTcb::setupUniqueKeyAndCols (
    this=0x7fffcfa3ae78, doInit=0) at ../executor/ExHbaseAccess.cpp:1707
#7  0x00007ffff2e27e5a in ExHbaseAccessSQRowsetTcb::work (this=0x7fffcfa3ae78)
    at ../executor/ExHbaseIUD.cpp:3805
#8  0x00007ffff2e44ee3 in ExScheduler::work (this=0x7fffcfa39980,
    prevWaitTime=<value optimized out>) at ../executor/ExScheduler.cpp:328
#9  0x00007ffff2d70682 in ex_root_tcb::execute (this=0x7fffcfa3ee00,
    cliGlobals=0xee5280, glob=0x7fffcf9db618, input_desc=0x7fffcf7da038,
    diagsArea=@0x7fffe52347b0, reExecute=0) at ../executor/ex_root.cpp:1055
#10 0x00007ffff437d014 in CliStatement::execute (this=0x7fffe3d6e2f0,
    cliGlobals=0xee5280, input_desc=0x7fffcf7da038,
    diagsArea=<value optimized out>, execute_state=<value optimized out>,
    fixupOnly=0, cliflags=0) at ../cli/Statement.cpp:4570
#11 0x00007ffff432611a in SQLCLI_PerformTasks(CliGlobals *, ULng32, SQLSTMT_ID *, SQLDESC_ID *, SQLDESC_ID *, Lng32, Lng32, typedef __va_list_tag __va_list_tag *, SQLCLI_PTR_PAIRS *, SQLCLI_PTR_PAIRS *) (cliGlobals=0xee5280, tasks=4882,
    statement_id=0x7fffcdbeafa0, input_descriptor=0x7fffcdbeb010,
    output_descriptor=0x0, num_input_ptr_pairs=0, num_output_ptr_pairs=0,
    ap=0x7fffe5234950, input_ptr_pairs=0x0, output_ptr_pairs=0x0)
    at ../cli/Cli.cpp:3284
#12 0x00007ffff4326e42 in SQLCLI_Exec(CliGlobals *, SQLSTMT_ID *, SQLDESC_ID *, Lng32, typedef __va_list_tag __va_list_tag *, SQLCLI_PTR_PAIRS *) (
    cliGlobals=<value optimized out>, statement_id=<value optimized out>,
    input_descriptor=<value optimized out>,
    num_ptr_pairs=<value optimized out>, ap=<value optimized out>,
    ptr_pairs=<value optimized out>) at ../cli/Cli.cpp:3531
#13 0x00007ffff438b55a in SQL_EXEC_Exec (statement_id=0x7fffcdbeafa0,
    input_descriptor=0x7fffcdbeb010, num_ptr_pairs=0)
    at ../cli/CliExtern.cpp:2071
#14 0x00007ffff2dd8831 in ExeCliInterface::exec (this=0x7fffe5236da0,
    inputBuf=<value optimized out>, inputBufLen=<value optimized out>)
    at ../executor/ExExeUtilCli.cpp:616
#15 0x00007ffff2de1b55 in ExeCliInterface::executeImmediateExec (
    this=0x7fffe5236da0, stmtStr=<value optimized out>, outputBuf=0x0,
    outputBufLen=0x0, nullTerminate=1, rowsAffected=0x0)
    at ../executor/ExExeUtilCli.cpp:915
#16 0x00007ffff2de1dcc in ExeCliInterface::executeImmediate (
    this=0x7fffe5236da0,
    stmtStr=0x7fffe5234bb0 "update TRAFODION.\"_MD_\".OBJECTS set catalog_name = 'TRAFODION', schema_name = 'ALTER_RENAME_RENAME23', object_name = 'TAB_EMP_NEW_01' where object_uid = 284349763952323046 ", outputBuf=0x0, outputBufLen=0x0,
    nullTerminate=1, rowsAffected=0x0, monitorThis=0, globalDiags=0x0)
    at ../executor/ExExeUtilCli.cpp:1010
#17 0x00007fffef88c034 in CmpSeabaseDDL::updateObjectName (
    this=0x7fffe5238be0, cliInterface=0x7fffe5236da0,
    objUID=284349763952323046, catName=0x7fffe5237628 "TRAFODION",
    schName=<value optimized out>, objName=<value optimized out>)
    at ../sqlcomp/CmpSeabaseDDLcommon.cpp:4099
#18 0x00007fffef8f8e42 in CmpSeabaseDDL::renameSeabaseTable (
    this=0x7fffe5238be0, renameTableNode=0x7fffe5235d00,
    currCatName=<value optimized out>, currSchName=<value optimized out>)
    at ../sqlcomp/CmpSeabaseDDLtable.cpp:3191
#19 0x00007fffef8b6545 in CmpSeabaseDDL::executeSeabaseDDL (
    this=0x7fffe5238be0, ddlExpr=0x7fffd241b9c8, ddlNode=0x7fffd241b868,
    currCatName=..., currSchName=...)
    at ../sqlcomp/CmpSeabaseDDLcommon.cpp:6807
#20 0x00007fffed576b3c in CmpStatement::process (this=<value optimized out>,
    statement=<value optimized out>) at ../arkcmp/CmpStatement.cpp:931
#21 0x00007fffed56a826 in CmpContext::compileDirect (this=0x7fffe31cb090,
    data=0x7fffcf9d9c78 "\200", data_len=232, outHeap=0x7fffe47d4128,
    charset=15, op=CmpMessageObj::PROCESSDDL, gen_code=@0x7fffe52395e0,
    gen_code_len=@0x7fffe52395ec, parserFlags=4194304,
    diagsArea=0x7fffcf9d9d68) at ../arkcmp/CmpContext.cpp:720
#22 0x00007ffff2d14216 in ExDDLTcb::work (this=0x7fffe3d7c6a8)
    at ../executor/ex_ddl.cpp:265
#23 0x00007ffff2e44ee3 in ExScheduler::work (this=0x7fffe3d7c210,
    prevWaitTime=<value optimized out>) at ../executor/ExScheduler.cpp:328
#24 0x00007ffff2d70682 in ex_root_tcb::execute (this=0x7fffe3d7cc80,
    cliGlobals=0xee5280, glob=0x7fffcf9d9640, input_desc=0x7fffcf82c290,
    diagsArea=@0x7fffe523ad10, reExecute=0) at ../executor/ex_root.cpp:1055
#25 0x00007ffff437d014 in CliStatement::execute (this=0x7fffe3d63178,
    cliGlobals=0xee5280, input_desc=0x7fffcf82c290,
    diagsArea=<value optimized out>, execute_state=<value optimized out>,
    fixupOnly=0, cliflags=0) at ../cli/Statement.cpp:4570
#26 0x00007ffff432611a in SQLCLI_PerformTasks(CliGlobals *, ULng32, SQLSTMT_ID *, SQLDESC_ID *, SQLDESC_ID *, Lng32, Lng32, typedef __va_list_tag __va_list_tag *, SQLCLI_PTR_PAIRS *, SQLCLI_PTR_PAIRS *) (cliGlobals=0xee5280, tasks=8063,
    statement_id=0x4a4fe98, input_descriptor=0x4a4fec8, output_descriptor=0x0,
    num_input_ptr_pairs=0, num_output_ptr_pairs=0, ap=0x7fffe523aeb0,
    input_ptr_pairs=0x0, output_ptr_pairs=0x0) at ../cli/Cli.cpp:3284
#27 0x00007ffff438a85b in SQL_EXEC_ClearExecFetchClose (
    statement_id=0x4a4fe98, input_descriptor=0x4a4fec8, output_descriptor=0x0,
    num_input_ptr_pairs=0, num_output_ptr_pairs=0, num_total_ptr_pairs=0)
    at ../cli/CliExtern.cpp:2627
#28 0x00007ffff68703ef in SRVR::WSQL_EXEC_ClearExecFetchClose (
    statement_id=0x4a4fe98, input_descriptor=<value optimized out>,
    output_descriptor=<value optimized out>,
    num_input_ptr_pairs=<value optimized out>,
    num_output_ptr_pairs=<value optimized out>,
    num_total_ptr_pairs=<value optimized out>) at SQLWrapper.cpp:459
#29 0x00007ffff6866d2f in SRVR::EXECUTE2 (pSrvrStmt=0x4a4f880)
    at sqlinterface.cpp:5520
#30 0x00007ffff689736e in odbc_SQLSvc_Execute2_sme_ (
    objtag_=<value optimized out>, call_id_=<value optimized out>,
    dialogueId=<value optimized out>, sqlAsyncEnable=<value optimized out>,
    queryTimeout=<value optimized out>, inputRowCnt=<value optimized out>,
    sqlStmtType=0, stmtHandle=77920384, cursorLength=0, cursorName=0x0,
    cursorCharset=1, holdableCursor=0, inValuesLength=0, inValues=0x0,
    returnCode=0x7fffe523b7a8, sqlWarningOrErrorLength=0x7fffe523b7a4,
    sqlWarningOrError=@0x7fffe523b780, rowsAffected=0x7fffe523b7a0,
    outValuesLength=0x7fffe523b794, outValues=@0x7fffe523b778)
    at srvrothers.cpp:1517
#31 0x00000000004cbb62 in odbc_SQLSrvr_ExecDirect_ame_ (objtag_=0x454f0f0,
    call_id_=0x454f148, dialogueId=481956831, stmtLabel=<value optimized out>,
    cursorName=0x0, stmtExplainLabel=<value optimized out>, stmtType=0,
    sqlStmtType=0,
    sqlString=0x4980ea4 "alter table tab_emp_original_01 rename to tab_emp_new_01 cascade", sqlAsyncEnable=0, queryTimeout=0, inputRowCnt=0, txnID=0,
    holdableCursor=0) at SrvrConnect.cpp:7662
#32 0x0000000000494046 in SQLEXECUTE_IOMessage (objtag_=0x454f0f0,
    call_id_=0x454f148, operation_id=3012) at Interface/odbcs_srvr.cpp:1734
#33 0x00000000004940f4 in DISPATCH_TCPIPRequest (objtag_=0x454f0f0,
    call_id_=0x454f148, operation_id=<value optimized out>)
    at Interface/odbcs_srvr.cpp:1799
#34 0x00000000004337d2 in BUILD_TCPIP_REQUEST (pnode=0x454f0f0)
    at ../Common/TCPIPSystemSrvr.cpp:603
#35 0x000000000043416d in PROCESS_TCPIP_REQUEST (pnode=0x454f0f0)
    at ../Common/TCPIPSystemSrvr.cpp:581
#36 0x0000000000462356 in CNSKListenerSrvr::tcpip_listener (arg=0xda07f0)
    at Interface/linux/Listener_srvr_ps.cpp:399
#37 0x00007ffff47f9290 in sb_thread_sthr_disp (pp_arg=0xed5c80)
    at threadl.cpp:253
#38 0x00007ffff45c5851 in start_thread () from /lib64/libpthread.so.0
#39 0x00007ffff4afb90d in clone () from /lib64/libc.so.6







(gdb) bt
#0  0x00007ffff4a458a5 in raise () from /lib64/libc.so.6
#1  0x00007ffff4a4700d in abort () from /lib64/libc.so.6
#2  0x00007ffff5b4ea55 in os::abort(bool) ()
   from /usr/java/jdk1.7.0_67/jre/lib/amd64/server/libjvm.so
#3  0x00007ffff5ccef87 in VMError::report_and_die() ()
   from /usr/java/jdk1.7.0_67/jre/lib/amd64/server/libjvm.so
#4  0x00007ffff5b5396f in JVM_handle_linux_signal ()
   from /usr/java/jdk1.7.0_67/jre/lib/amd64/server/libjvm.so
#5  <signal handler called>
#6  0x00007ffff2e16261 in ExHbaseAccessTcb::setupUniqueKeyAndCols (
    this=0x7fffcf5a0c10, doInit=0) at ../executor/ExHbaseAccess.cpp:1707
#7  0x00007ffff2e27e5a in ExHbaseAccessSQRowsetTcb::work (this=0x7fffcf5a0c10)
    at ../executor/ExHbaseIUD.cpp:3805
#8  0x00007ffff2e44ee3 in ExScheduler::work (this=0x7fffcf59f718,
    prevWaitTime=<value optimized out>) at ../executor/ExScheduler.cpp:328
#9  0x00007ffff2d70682 in ex_root_tcb::execute (this=0x7fffcf5a4b98,
    cliGlobals=0xee5240, glob=0x7fffe3d86830, input_desc=0x7fffcf5cc0d0,
    diagsArea=@0x7fffe52347b0, reExecute=0) at ../executor/ex_root.cpp:1055
#10 0x00007ffff437d014 in CliStatement::execute (this=0x7fffe3d9c448,
    cliGlobals=0xee5240, input_desc=0x7fffcf5cc0d0,
    diagsArea=<value optimized out>, execute_state=<value optimized out>,
    fixupOnly=0, cliflags=0) at ../cli/Statement.cpp:4570
#11 0x00007ffff432611a in SQLCLI_PerformTasks(CliGlobals *, ULng32, SQLSTMT_ID *, SQLDESC_ID *, SQLDESC_ID *, Lng32, Lng32, typedef __va_list_tag __va_list_tag *, SQLCLI_PTR_PAIRS *, SQLCLI_PTR_PAIRS *) (cliGlobals=0xee5240, tasks=4882,
    statement_id=0x7fffce3198f0, input_descriptor=0x7fffcdd67fb0,
    output_descriptor=0x0, num_input_ptr_pairs=0, num_output_ptr_pairs=0,
    ap=0x7fffe5234950, input_ptr_pairs=0x0, output_ptr_pairs=0x0)
    at ../cli/Cli.cpp:3284
#12 0x00007ffff4326e42 in SQLCLI_Exec(CliGlobals *, SQLSTMT_ID *, SQLDESC_ID *, Lng32, typedef __va_list_tag __va_list_tag *, SQLCLI_PTR_PAIRS *) (
    cliGlobals=<value optimized out>, statement_id=<value optimized out>,
    input_descriptor=<value optimized out>,
    num_ptr_pairs=<value optimized out>, ap=<value optimized out>,
    ptr_pairs=<value optimized out>) at ../cli/Cli.cpp:3531
#13 0x00007ffff438b55a in SQL_EXEC_Exec (statement_id=0x7fffce3198f0,
    input_descriptor=0x7fffcdd67fb0, num_ptr_pairs=0)
    at ../cli/CliExtern.cpp:2071
#14 0x00007ffff2dd8831 in ExeCliInterface::exec (this=0x7fffe5236da0,
    inputBuf=<value optimized out>, inputBufLen=<value optimized out>)
    at ../executor/ExExeUtilCli.cpp:616
#15 0x00007ffff2de1b55 in ExeCliInterface::executeImmediateExec (
    this=0x7fffe5236da0, stmtStr=<value optimized out>, outputBuf=0x0,
    outputBufLen=0x0, nullTerminate=1, rowsAffected=0x0)
    at ../executor/ExExeUtilCli.cpp:915
#16 0x00007ffff2de1dcc in ExeCliInterface::executeImmediate (
    this=0x7fffe5236da0,
    stmtStr=0x7fffe5234bb0 "update TRAFODION.\"_MD_\".OBJECTS set catalog_name = 'TRAFODION', schema_name = 'ALTER_RENAME_RENAME21', object_name = 'TAB_EMP_NEW_01' where object_uid = 478567497888485230 ", outputBuf=0x0, outputBufLen=0x0,
    nullTerminate=1, rowsAffected=0x0, monitorThis=0, globalDiags=0x0)
    at ../executor/ExExeUtilCli.cpp:1010
#17 0x00007fffef88c034 in CmpSeabaseDDL::updateObjectName (
    this=0x7fffe5238be0, cliInterface=0x7fffe5236da0,
    objUID=478567497888485230, catName=0x7fffe5237628 "TRAFODION",
    schName=<value optimized out>, objName=<value optimized out>)
    at ../sqlcomp/CmpSeabaseDDLcommon.cpp:4099
#18 0x00007fffef8f8e42 in CmpSeabaseDDL::renameSeabaseTable (
    this=0x7fffe5238be0, renameTableNode=0x7fffe5235d00,
    currCatName=<value optimized out>, currSchName=<value optimized out>)
    at ../sqlcomp/CmpSeabaseDDLtable.cpp:3191
#19 0x00007fffef8b6545 in CmpSeabaseDDL::executeSeabaseDDL (
    this=0x7fffe5238be0, ddlExpr=0x7fffcdd1d508, ddlNode=0x7fffcdd1d320,
    currCatName=..., currSchName=...)
    at ../sqlcomp/CmpSeabaseDDLcommon.cpp:6807
#20 0x00007fffed576b3c in CmpStatement::process (this=<value optimized out>,
    statement=<value optimized out>) at ../arkcmp/CmpStatement.cpp:931
#21 0x00007fffed56a826 in CmpContext::compileDirect (this=0x7fffe31cb090,
    data=0x7fffcf5b8aa8 "\200", data_len=224, outHeap=0x7fffe47d4128,
    charset=15, op=CmpMessageObj::PROCESSDDL, gen_code=@0x7fffe52395e0,
    gen_code_len=@0x7fffe52395ec, parserFlags=4194304,
    diagsArea=0x7fffcf5b8b90) at ../arkcmp/CmpContext.cpp:720
#22 0x00007ffff2d14216 in ExDDLTcb::work (this=0x7fffe3d93f10)
    at ../executor/ex_ddl.cpp:265
#23 0x00007ffff2e44ee3 in ExScheduler::work (this=0x7fffe3d93a78,
    prevWaitTime=<value optimized out>) at ../executor/ExScheduler.cpp:328
#24 0x00007ffff2d70682 in ex_root_tcb::execute (this=0x7fffe3d944e8,
    cliGlobals=0xee5240, glob=0x7fffcf5b8470, input_desc=0x7fffe3d86278,
    diagsArea=@0x7fffe523ad10, reExecute=0) at ../executor/ex_root.cpp:1055
#25 0x00007ffff437d014 in CliStatement::execute (this=0x7fffe3d6e2f0,
    cliGlobals=0xee5240, input_desc=0x7fffe3d86278,
    diagsArea=<value optimized out>, execute_state=<value optimized out>,
    fixupOnly=0, cliflags=0) at ../cli/Statement.cpp:4570
#26 0x00007ffff432611a in SQLCLI_PerformTasks(CliGlobals *, ULng32, SQLSTMT_ID *, SQLDESC_ID *, SQLDESC_ID *, Lng32, Lng32, typedef __va_list_tag __va_list_tag *, SQLCLI_PTR_PAIRS *, SQLCLI_PTR_PAIRS *) (cliGlobals=0xee5240, tasks=8063,
    statement_id=0x3bbd598, input_descriptor=0x3bbd5c8, output_descriptor=0x0,
    num_input_ptr_pairs=0, num_output_ptr_pairs=0, ap=0x7fffe523aeb0,
    input_ptr_pairs=0x0, output_ptr_pairs=0x0) at ../cli/Cli.cpp:3284
#27 0x00007ffff438a85b in SQL_EXEC_ClearExecFetchClose (
    statement_id=0x3bbd598, input_descriptor=0x3bbd5c8, output_descriptor=0x0,
    num_input_ptr_pairs=0, num_output_ptr_pairs=0, num_total_ptr_pairs=0)
    at ../cli/CliExtern.cpp:2627
#28 0x00007ffff68703ef in SRVR::WSQL_EXEC_ClearExecFetchClose (
    statement_id=0x3bbd598, input_descriptor=<value optimized out>,
    output_descriptor=<value optimized out>,
    num_input_ptr_pairs=<value optimized out>,
    num_output_ptr_pairs=<value optimized out>,
    num_total_ptr_pairs=<value optimized out>) at SQLWrapper.cpp:459
#29 0x00007ffff6866d2f in SRVR::EXECUTE2 (pSrvrStmt=0x3bbcf80)
    at sqlinterface.cpp:5520
#30 0x00007ffff689736e in odbc_SQLSvc_Execute2_sme_ (
    objtag_=<value optimized out>, call_id_=<value optimized out>,
    dialogueId=<value optimized out>, sqlAsyncEnable=<value optimized out>,
    queryTimeout=<value optimized out>, inputRowCnt=<value optimized out>,
    sqlStmtType=0, stmtHandle=62640000, cursorLength=0, cursorName=0x0,
    cursorCharset=1, holdableCursor=0, inValuesLength=0, inValues=0x0,
    returnCode=0x7fffe523b7a8, sqlWarningOrErrorLength=0x7fffe523b7a4,
    sqlWarningOrError=@0x7fffe523b780, rowsAffected=0x7fffe523b7a0,
    outValuesLength=0x7fffe523b794, outValues=@0x7fffe523b778)
    at srvrothers.cpp:1517
#31 0x00000000004cbb62 in odbc_SQLSrvr_ExecDirect_ame_ (objtag_=0x2bb1aa0,
    call_id_=0x2bb1af8, dialogueId=1361559974,
    stmtLabel=<value optimized out>, cursorName=0x0,
    stmtExplainLabel=<value optimized out>, stmtType=0, sqlStmtType=0,
    sqlString=0x3ac5aa4 "alter table tab_emp_original_01 rename to tab_emp_new_01", sqlAsyncEnable=0, queryTimeout=0, inputRowCnt=0, txnID=0, holdableCursor=0)
    at SrvrConnect.cpp:7662
#32 0x0000000000494046 in SQLEXECUTE_IOMessage (objtag_=0x2bb1aa0,
    call_id_=0x2bb1af8, operation_id=3012) at Interface/odbcs_srvr.cpp:1734
#33 0x00000000004940f4 in DISPATCH_TCPIPRequest (objtag_=0x2bb1aa0,
    call_id_=0x2bb1af8, operation_id=<value optimized out>)
    at Interface/odbcs_srvr.cpp:1799
#34 0x00000000004337d2 in BUILD_TCPIP_REQUEST (pnode=0x2bb1aa0)
    at ../Common/TCPIPSystemSrvr.cpp:603
#35 0x000000000043416d in PROCESS_TCPIP_REQUEST (pnode=0x2bb1aa0)
    at ../Common/TCPIPSystemSrvr.cpp:581
#36 0x0000000000462356 in CNSKListenerSrvr::tcpip_listener (arg=0xda07f0)
    at Interface/linux/Listener_srvr_ps.cpp:399
#37 0x00007ffff47f9290 in sb_thread_sthr_disp (pp_arg=0xeb00e0)
    at threadl.cpp:253
#38 0x00007ffff45c5851 in start_thread () from /lib64/libpthread.so.0
#39 0x00007ffff4afb90d in clone () from /lib64/libc.so.6