[
https://issues.apache.org/jira/browse/KUDU-3384?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17568843#comment-17568843
]
Alexey Serbin commented on KUDU-3384:
-------------------------------------
Backtrace from lldb when enabling the newly added test in
http://gerrit.cloudera.org:8080/18757:
{noformat}
* thread #146, name = 'rpc worker-30047859', stop reason = breakpoint 1.1
frame #0: 0x000000010c0dfeb3
libkudu_common.dylib`kudu::EncodedKey::IncrementEncodedKey(tablet_schema=0x00000001116efb18,
key=0x000070000ade08a8, arena=0x0000000110a71e98) at encoded_key.cc:93:33
90 // Increment the new key
91 ContiguousRow new_row(&tablet_schema, new_row_key);
92 if (!key_util::IncrementPrimaryKey(&new_row, arena)) {
-> 93 return Status::IllegalState("No lexicographically greater key
exists");
94 }
95
96 // Re-encode it.
Target 0: (flex_partitioning_client-test) stopped.
(lldb) bt
* thread #146, name = 'rpc worker-30047859', stop reason = breakpoint 1.1
* frame #0: 0x000000010c0dfeb3
libkudu_common.dylib`kudu::EncodedKey::IncrementEncodedKey(tablet_schema=0x00000001116efb18,
key=0x000070000ade08a8, arena=0x0000000110a71e98) at encoded_key.cc:93:33
frame #1: 0x0000000106184909
libtablet.dylib`kudu::tablet::CFileSet::Iterator::OptimizePKPredicates(this=0x0000000110a71e10,
spec=0x0000000110a70340) at cfile_set.cc:445:3
frame #2: 0x000000010618433e
libtablet.dylib`kudu::tablet::CFileSet::Iterator::Init(this=0x0000000110a71e10,
spec=0x0000000110a70340) at cfile_set.cc:403:3
frame #3: 0x000000010631c0a9
libtablet.dylib`kudu::tablet::DeltaApplier::Init(this=0x0000000110e29b80,
spec=0x0000000110a70340) at delta_applier.cc:59:3
frame #4: 0x000000010c0eefd2
libkudu_common.dylib`kudu::MaterializingIterator::Init(this=0x0000000110e20080,
spec=0x0000000110a70340) at generic_iterators.cc:1173:3
frame #5: 0x000000010c0e795e
libkudu_common.dylib`kudu::InitAndMaybeWrap(base_iter=0x0000000112063040,
spec=0x0000000110a70340) at generic_iterators.cc:1513:3
frame #6: 0x000000010c0ed87f
libkudu_common.dylib`kudu::UnionIterator::InitSubIterators(this=0x0000000110b070e0,
spec=0x000070000ade1ea0) at generic_iterators.cc:1029:5
frame #7: 0x000000010c0ed232
libkudu_common.dylib`kudu::UnionIterator::Init(this=0x0000000110b070e0,
spec=0x000070000ade1ea0) at generic_iterators.cc:1002:3
frame #8: 0x000000010604a79d
libtablet.dylib`kudu::tablet::Tablet::Iterator::Init(this=0x00000001105e3a00,
spec=0x000070000ade1ea0) at tablet.cc:3057:3
frame #9: 0x0000000101f2b642
libtserver.dylib`kudu::tserver::TabletServiceImpl::HandleNewScanRequest(this=0x0000000110e83e00,
replica=0x00000001112c3d40, req=0x000000011129c060,
rpc_context=0x00000001115ccc20, result_collector=0x000070000ade27f0,
scanner_id="", snap_timestamp=0x000070000ade2648,
has_more_results=0x000070000ade267f, error_code=0x000070000ade2678) at
tablet_service.cc:2938:15
frame #10: 0x0000000101f2717e
libtserver.dylib`kudu::tserver::TabletServiceImpl::Scan(this=0x0000000110e83e00,
req=0x000000011129c060, resp=0x000000011129c3d8, context=0x00000001115ccc20)
at tablet_service.cc:2210:16
{noformat}
> DRS-level scan optimization leads to failed scans
> -------------------------------------------------
>
> Key: KUDU-3384
> URL: https://issues.apache.org/jira/browse/KUDU-3384
> Project: Kudu
> Issue Type: Bug
> Components: tserver
> Affects Versions: 1.17.0
> Reporter: Alexey Serbin
> Priority: Major
>
> Recently, a new DRS-level optimization for scan operations has been
> introduced with changelist
> [936d7edc4|https://github.com/apache/kudu/commit/936d7edc4e4b69d2e1f1dffc96760cb3fd57a934].
> The newly introduced DRS-level optimization leads to scan failures when all
> of the following turns true:
> * all the primary key columns are of integer types
> * the table has no hash partitioning
> * the table contains a row with all primary key columns set to
> {{INT\{x}_MAX}} correspondingly
> * the scan request is to scan all the table's data
> I suspect that some of the conditions above might be relaxed, but I have a
> test case that reproduces the issue as described. See [this gerrit review
> item|http://gerrit.cloudera.org:8080/18757] for the reproduction scenario.
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