If someone is downgrading, they could easily hit this scenario.
In addition to the error in the shell, there's also a scary looking stack trace in the logs when you run this for the first time
2015-10-26T12:48:36.827+1100 I QUERY [conn9] operation isn't supported: 2008 2015-10-26T12:48:36.827+1100 I - [conn9] Assertion: 16141:cannot translate opcode 2008 2015-10-26T12:48:36.831+1100 I CONTROL [conn9] 0x1050f9449 0x1050ab600 0x1050997da 0x10509969a 0x104aad47a 0x104aa9fd4 0x104c43980 0x104984e3e 0x1050bb39c 0x10512c4f1 0x7fff8e06005a 0x7fff8e05ffd7 0x7fff8e05d3ed ----- BEGIN BACKTRACE ----- {"backtrace":[{"b":"104979000","o":"780449"},{"b":"104979000","o":"732600"},{"b":"104979000","o":"7207DA"},{"b":"104979000","o":"72069A"},{"b":"104979000","o":"13447A"},{"b":"104979000","o":"130FD4"},{"b":"104979000","o":"2CA980"},{"b":"104979000","o":"BE3E"},{"b":"104979000","o":"74239C"},{"b":"104979000","o":"7B34F1"},{"b":"7FFF8E05C000","o":"405A"},{"b":"7FFF8E05C000","o":"3FD7"},{"b":"7FFF8E05C000","o":"13ED"}],"processInfo":{ "mongodbVersion" : "3.0.7", "gitVersion" : "6ce7cbe8c6b899552dadd907604559806aa2e9bd", "uname" : { "sysname" : "Darwin", "release" : "14.5.0", "version" : "Darwin Kernel Version 14.5.0: Wed Jul 29 02:26:53 PDT 2015; root:xnu-2782.40.9~1/RELEASE_X86_64", "machine" : "x86_64" }, "somap" : [ { "path" : "/usr/local/bin/mongod", "machType" : 2, "b" : "104979000", "buildId" : "C7961951A8C135B2B56385D289485317" }, { "path" : "/usr/lib/libSystem.B.dylib", "machType" : 6, "b" : "7FFF8D24D000", "buildId" : "1866C519C5F33D098C17A8F703664521" }, { "path" : "/usr/lib/libc++.1.dylib", "machType" : 6, "b" : "7FFF9236E000", "buildId" : "1B9530FD989B3174BB1CBDC159501710" }, { "path" : "/usr/lib/system/libcache.dylib", "machType" : 6, "b" : "7FFF8FBCA000", "buildId" : "45E9A2E799C436B2BEE30C4E11614AD1" }, { "path" : "/usr/lib/system/libcommonCrypto.dylib", "machType" : 6, "b" : "7FFF93E49000", "buildId" : "E789748DF9A73CFFB31790DF348B1E95" }, { "path" : "/usr/lib/system/libcompiler_rt.dylib", "machType" : 6, "b" : "7FFF89B6B000", "buildId" : "BF8FC133EE103DA69B9092039E28678F" }, { "path" : "/usr/lib/system/libcopyfile.dylib", "machType" : 6, "b" : "7FFF897EA000", "buildId" : "0C68D3A6ACDD3EF3991ACC82C32AB836" }, { "path" : "/usr/lib/system/libcorecrypto.dylib", "machType" : 6, "b" : "7FFF93F4F000", "buildId" : "5779FFA04D9A3AD4B7F2618227621DC8" }, { "path" : "/usr/lib/system/libdispatch.dylib", "machType" : 6, "b" : "7FFF8E284000", "buildId" : "502CF32B669B3709886208188225E4F0" }, { "path" : "/usr/lib/system/libdyld.dylib", "machType" : 6, "b" : "7FFF8FC96000", "buildId" : "CFBBE540D5033AFCB5D6644F1E69949B" }, { "path" : "/usr/lib/system/libkeymgr.dylib", "machType" : 6, "b" : "7FFF8EFF1000", "buildId" : "77845842DE703CC5BD01C3D14227CED5" }, { "path" : "/usr/lib/system/liblaunch.dylib", "machType" : 6, "b" : "7FFF8E1BA000", "buildId" : "4F81CA3AD2CE3030A89D42F3DAD7BA8F" }, { "path" : "/usr/lib/system/libmacho.dylib", "machType" : 6, "b" : "7FFF8C788000", "buildId" : "126CA2EDDE91308F8881B9DAEC3C63B6" }, { "path" : "/usr/lib/system/libquarantine.dylib", "machType" : 6, "b" : "7FFF93E79000", "buildId" : "7AF900412768378A925AD83161863642" }, { "path" : "/usr/lib/system/libremovefile.dylib", "machType" : 6, "b" : "7FFF95A34000", "buildId" : "3485B5F46CE83C628DFD8736ED6E8531" }, { "path" : "/usr/lib/system/libsystem_asl.dylib", "machType" : 6, "b" : "7FFF95A1D000", "buildId" : "F153AC5B0542356E88C820A62CA704E2" }, { "path" : "/usr/lib/system/libsystem_blocks.dylib", "machType" : 6, "b" : "7FFF8D090000", "buildId" : "9615D10AFCA73BE4AA1A1B195DACE1A1" }, { "path" : "/usr/lib/system/libsystem_c.dylib", "machType" : 6, "b" : "7FFF8AA40000", "buildId" : "F0635E0FFE4B34DBACF9A58C1E9070E9" }, { "path" : "/usr/lib/system/libsystem_configuration.dylib", "machType" : 6, "b" : "7FFF941AC000", "buildId" : "56F94DCEDBDE36158F07DE6270D9F8BE" }, { "path" : "/usr/lib/system/libsystem_coreservices.dylib", "machType" : 6, "b" : "7FFF8FBFB000", "buildId" : "41B7C5785A5331C8A96FC73E030B0938" }, { "path" : "/usr/lib/system/libsystem_coretls.dylib", "machType" : 6, "b" : "7FFF90DAB000", "buildId" : "155DA0A92046332EBFA3D7974A51F731" }, { "path" : "/usr/lib/system/libsystem_dnssd.dylib", "machType" : 6, "b" : "7FFF94038000", "buildId" : "0CEB5910843F315CA1DE5D955A48A045" }, { "path" : "/usr/lib/system/libsystem_info.dylib", "machType" : 6, "b" : "7FFF898D0000", "buildId" : "2E16C4B3A32739579C41143911979A1E" }, { "path" : "/usr/lib/system/libsystem_kernel.dylib", "machType" : 6, "b" : "7FFF8CE55000", "buildId" : "16AD15EF3DAE3F639D2626CCE1920762" }, { "path" : "/usr/lib/system/libsystem_m.dylib", "machType" : 6, "b" : "7FFF94041000", "buildId" : "1E12AB456D9636D0A226F24D9FB0D9D6" }, { "path" : "/usr/lib/system/libsystem_malloc.dylib", "machType" : 6, "b" : "7FFF8E9F3000", "buildId" : "DDA8928BCC0D3255BD8A3FEA0982B890" }, { "path" : "/usr/lib/system/libsystem_network.dylib", "machType" : 6, "b" : "7FFF8FE22000", "buildId" : "6105C13467223C0AA4CE5E1261E2E1CC" }, { "path" : "/usr/lib/system/libsystem_networkextension.dylib", "machType" : 6, "b" : "7FFF95D2D000", "buildId" : "BA58B30B83773B0A8AE34F84021D9D4E" }, { "path" : "/usr/lib/system/libsystem_notify.dylib", "machType" : 6, "b" : "7FFF8BD99000", "buildId" : "61147800F3203DAA850CBADF33855F29" }, { "path" : "/usr/lib/system/libsystem_platform.dylib", "machType" : 6, "b" : "7FFF91308000", "buildId" : "64E34079D7123D669CE2418624A5C040" }, { "path" : "/usr/lib/system/libsystem_pthread.dylib", "machType" : 6, "b" : "7FFF8E05C000", "buildId" : "ACE90967ECD03251AEEB461E3C6414F7" }, { "path" : "/usr/lib/system/libsystem_sandbox.dylib", "machType" : 6, "b" : "7FFF96AA9000", "buildId" : "3F5E973FC70231AC97BC05F5C195683C" }, { "path" : "/usr/lib/system/libsystem_secinit.dylib", "machType" : 6, "b" : "7FFF923E0000", "buildId" : "581DAD0F6B633A48B63B917AF799ABAA" }, { "path" : "/usr/lib/system/libsystem_stats.dylib", "machType" : 6, "b" : "7FFF94032000", "buildId" : "D0E968373CF6323DB7116DF6F660E530" }, { "path" : "/usr/lib/system/libsystem_trace.dylib", "machType" : 6, "b" : "7FFF91690000", "buildId" : "840F5301B55A307890B9FEFFD6CD741A" }, { "path" : "/usr/lib/system/libunc.dylib", "machType" : 6, "b" : "7FFF93224000", "buildId" : "5676F7EAC1DF329FB006D2C3022B7D70" }, { "path" : "/usr/lib/system/libunwind.dylib", "machType" : 6, "b" : "7FFF8CEB4000", "buildId" : "BE7E51A0B6EA3A549CCA9D88F683A6D6" }, { "path" : "/usr/lib/system/libxpc.dylib", "machType" : 6, "b" : "7FFF94D63000", "buildId" : "5C829202962E37448B5000D38CC88E84" }, { "path" : "/usr/lib/libobjc.A.dylib", "machType" : 6, "b" : "7FFF936C8000", "buildId" : "759E155DBC423D4E869B6F57D477177C" }, { "path" : "/usr/lib/libauto.dylib", "machType" : 6, "b" : "7FFF90DBD000", "buildId" : "A260789BD4D8316A9490254767B8A5F1" }, { "path" : "/usr/lib/libc++abi.dylib", "machType" : 6, "b" : "7FFF8D00B000", "buildId" : "88A22A0F87C63002BFBAAC0F2808B8B9" }, { "path" : "/usr/lib/libDiagnosticMessagesClient.dylib", "machType" : 6, "b" : "7FFF8CB58000", "buildId" : "2EE8E4365CDC34C599595BA218D507FB" } ] }} mongod(_ZN5mongo15printStackTraceERNSt3__113basic_ostreamIcNS0_11char_traitsIcEEEE+0x39) [0x1050f9449] mongod(_ZN5mongo10logContextEPKc+0x100) [0x1050ab600] mongod(_ZN5mongo11msgassertedEiPKc+0x13A) [0x1050997da] mongod(_ZN5mongo11msgassertedEiRKNSt3__112basic_stringIcNS0_11char_traitsIcEENS0_9allocatorIcEEEE+0x1A) [0x10509969a] mongod(_ZN5mongo10opToStringEi+0x18A) [0x104aad47a] mongod(_ZNK5mongo7OpDebug6reportERKNS_5CurOpERKNS_9LockStatsIxEE+0xB4) [0x104aa9fd4] mongod(_ZN5mongo16assembleResponseEPNS_16OperationContextERNS_7MessageERNS_10DbResponseERKNS_11HostAndPortE+0xD20) [0x104c43980] mongod(_ZN5mongo16MyMessageHandler7processERNS_7MessageEPNS_21AbstractMessagingPortEPNS_9LastErrorE+0xDE) [0x104984e3e] mongod(_ZN5mongo17PortMessageServer17handleIncomingMsgEPv+0x33C) [0x1050bb39c] mongod(_ZN5boost12_GLOBAL__N_112thread_proxyEPv+0xB1) [0x10512c4f1] libsystem_pthread.dylib(_pthread_body+0x83) [0x7fff8e06005a] libsystem_pthread.dylib(_pthread_body+0x0) [0x7fff8e05ffd7] libsystem_pthread.dylib(thread_start+0xD) [0x7fff8e05d3ed] ----- END BACKTRACE ----- 2015-10-26T12:48:36.831+1100 I NETWORK [conn9] AssertionException handling request, closing client connection: 16141 cannot translate opcode 2008
Subsequent find() commands give the same message in the shell, but don't generate another stack trace
Workarounds
- Restart the shell. I think even restarting with a 3.2.0-rc0 shell works, as the shell will determine it needs be be in "legacy" mode
- Manually set the readMode
db.getMongo().forceReadMode("legacy")
or
db.getMongo().forceReadMode("compatibility")
It would be nice if the shell could figure this out for itself.
- related to
-
SERVER-20915 Resolve shell readMode on connection open
- Closed