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  1. Core Server
  2. SERVER-30936

Attempting to create an existing sharded collection causes mongos to crash when using a logical session id

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    • Type: Icon: Bug Bug
    • Resolution: Fixed
    • Priority: Icon: Major - P3 Major - P3
    • 3.5.13
    • Affects Version/s: None
    • Component/s: Sharding
    • None
    • Fully Compatible
    • ALL
    • Hide 
      python buildscripts/resmoke.py --suites=no_server repro_server30936.js
      server30936.js
      (function() {
    "use strict";

    const st = new ShardingTest({mongos: 1, config: 1, shards: 1});

    const db = st.s.getDB("test");
    assert.commandWorked(db.adminCommand({enableSharding: db.getName()}));
    assert.commandWorked(db.adminCommand({shardCollection: db.mycoll.getFullName(), key: {a: 1}}));

    const dbWithSession = db.getMongo().startSession().getDatabase("test");
    assert.commandFailedWithCode(dbWithSession.runCommand({create: db.mycoll.getName()}),
                                 ErrorCodes.NamespaceExists);

    st.stop();
})();
      Show
      python buildscripts/resmoke.py --suites=no_server repro_server30936.js server30936.js ( function () { "use strict" ; const st = new ShardingTest({mongos: 1, config: 1, shards: 1}); const db = st.s.getDB( "test" ); assert.commandWorked(db.adminCommand({enableSharding: db.getName()})); assert.commandWorked(db.adminCommand({shardCollection: db.mycoll.getFullName(), key: {a: 1}})); const dbWithSession = db.getMongo().startSession().getDatabase( "test" ); assert.commandFailedWithCode(dbWithSession.runCommand({create: db.mycoll.getName()}), ErrorCodes.NamespaceExists); st.stop(); })();
    • 0

      The OperationContext::setLogicalSessionId() function and its invariant(!_lsid) were introduced as part of the changes from 8fe4426 in SERVER-29852, and exist only on the master branch. This issue therefore doesn't affect the 3.2 or 3.4 branches.

      #0  0x00007fd0824ce1fb in raise () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fd0842af5d3 in mongo::breakpoint () at src/mongo/util/debugger.cpp:75
#2  0x00007fd08367e188 in mongo::invariantFailed (expr=expr@entry=0x7fd08439f73b "!_lsid", file=file@entry=0x7fd08437b820 "src/mongo/db/operation_context.cpp", line=line@entry=359) at src/mongo/util/assert_util.cpp:128
#3  0x00007fd08407b6d8 in mongo::OperationContext::setLogicalSessionId (this=this@entry=0x7fd08609ea00, lsid=...) at src/mongo/db/operation_context.cpp:359
#4  0x00007fd083b1dd76 in mongo::initializeOperationSessionInfo (opCtx=opCtx@entry=0x7fd08609ea00, requestBody=unowned BSONObj 74 bytes @ 0x7fd086099a9d = {...}, requiresAuth=<optimized out>) at src/mongo/db/initialize_operation_session_info.cpp:51
#5  0x00007fd0837b253a in mongo::(anonymous namespace)::runAgainstRegistered (anObjBuilder=..., request=..., opCtx=0x7fd08609ea00) at src/mongo/s/commands/strategy.cpp:262
#6  mongo::(anonymous namespace)::runCommand(mongo::OperationContext *, const mongo::OpMsgRequest &, <unknown type in /home/maxh/debugging/mongo/mongos, CU 0x0, DIE 0x111b38>) (opCtx=0x7fd08609ea00, request=..., builder=builder@entry=<unknown type in /home/maxh/debugging/mongo/mongos, CU 0x0, DIE 0x111b38>, this=<optimized out>) at src/mongo/s/commands/strategy.cpp:284
#7  0x00007fd0837b5244 in mongo::Strategy::<lambda()>::operator()(void) const (__closure=__closure@entry=0x7fd0831fc530) at src/mongo/s/commands/strategy.cpp:437
#8  0x00007fd0837b5b69 in mongo::Strategy::clientCommand (opCtx=opCtx@entry=0x7fd08609ea00, m=...) at src/mongo/s/commands/strategy.cpp:447
#9  0x00007fd0836c8f61 in mongo::ServiceEntryPointMongos::handleRequest (this=<optimized out>, opCtx=0x7fd08609ea00, message=...) at src/mongo/s/service_entry_point_mongos.cpp:92
#10 0x00007fd0836e28d0 in mongo::ServiceStateMachine::_processMessage (this=this@entry=0x7fd0860a60f0, guard=...) at src/mongo/transport/service_state_machine.cpp:317
#11 0x00007fd0836df8c5 in mongo::ServiceStateMachine::_runNextInGuard (this=this@entry=0x7fd0860a60f0, guard=...) at src/mongo/transport/service_state_machine.cpp:407
#12 0x00007fd0836e19f7 in mongo::ServiceStateMachine::runNext (this=0x7fd0860a60f0) at src/mongo/transport/service_state_machine.cpp:373
#13 0x00007fd0836dd1e1 in mongo::ServiceEntryPointImpl::<lambda()>::operator() (__closure=0x7fd085f9fa00) at src/mongo/transport/service_entry_point_impl.cpp:89
#14 std::_Function_handler<void(), mongo::ServiceEntryPointImpl::startSession(mongo::transport::SessionHandle)::<lambda()> >::_M_invoke(const std::_Any_data &) (__functor=...) at /opt/mongodbtoolchain/v2/include/c++/5.4.0/functional:1871
#15 0x00007fd084082334 in std::function<void ()>::operator()() const (this=<optimized out>) at /opt/mongodbtoolchain/v2/include/c++/5.4.0/functional:2267
#16 mongo::(anonymous namespace)::runFunc (ctx=0x7fd085f9f9c0) at src/mongo/transport/service_entry_point_utils.cpp:55
#17 0x00007fd0824c6184 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#18 0x00007fd0821f2ffd in clone () from /lib/x86_64-linux-gnu/libc.so.6

            Assignee:
            kaloian.manassiev@mongodb.com Kaloian Manassiev
            Reporter:
            max.hirschhorn@mongodb.com Max Hirschhorn
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            Watchers:
            2 Start watching this issue

              Created:
              Updated:
              Resolved: