Details
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Bug
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Resolution: Done
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Major - P3
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None
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None
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None
Description
Drivers that implement DRIVERS-103 and/or DRIVERS-132 according to spec determine whether a command exists like so:
try
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result = db.runCommand({<command>: ...})
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catch error
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if error code == 59 or error code == Null
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<fallback to existing code for backward compatibility>
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else
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re-raise error
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However, older mongos versions use code 13390 when a command is not found, so drivers throw an error instead of falling back to the legacy code path.
This is a problem for all versions of mongos previous to 2.4.0:
> db.version()
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1.8.0
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> db.runCommand("foobar")
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Thu May 1 13:07:55 uncaught exception: error { "$err" : "unrecognized command: foobar", "code" : 13390 }
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> db.version()
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1.8.5
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> db.runCommand("foobar")
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Thu May 1 13:10:00 uncaught exception: error { "$err" : "unrecognized command: foobar", "code" : 13390 }
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> db.version()
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2.0.0
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> db.runCommand("foobar")
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Thu May 1 13:11:29 uncaught exception: error { "$err" : "unrecognized command: foobar", "code" : 13390 }
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> db.version()
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2.0.9
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> db.runCommand("foobar")
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Thu May 1 13:13:07 uncaught exception: error { "$err" : "unrecognized command: foobar", "code" : 13390 }
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> db.version()
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2.2.0
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> db.runCommand("foobar")
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Thu May 1 13:13:58 uncaught exception: error { "$err" : "unrecognized command: foobar", "code" : 13390 }
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> db.version()
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2.2.7
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> db.runCommand("foobar")
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Thu May 1 13:14:51 uncaught exception: error { "$err" : "unrecognized command: foobar", "code" : 13390 }
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> db.version()
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2.4.0
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> db.runCommand("foobar")
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{ "ok" : 0, "errmsg" : "no such cmd: foobar" }
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> db.version()
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2.4.10
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> db.runCommand("foobar")
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{ "ok" : 0, "errmsg" : "no such cmd: foobar" }
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Note: This is not a problem for any version of mongod
> db.version()
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1.8.0
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> db.runCommand("foobar")
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{
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"errmsg" : "no such cmd: foobar",
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"bad cmd" : {
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"foobar" : 1
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},
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"ok" : 0
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}
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> db.version()
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1.8.5
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> db.runCommand("foobar")
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{
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"errmsg" : "no such cmd: foobar",
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"bad cmd" : {
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"foobar" : 1
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},
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"ok" : 0
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}
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> db.version()
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2.0.0
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> db.runCommand("foobar")
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{
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"errmsg" : "no such cmd: foobar",
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"bad cmd" : {
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"foobar" : 1
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},
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"ok" : 0
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}
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> db.version()
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2.0.9
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> db.runCommand("foobar")
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{
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"errmsg" : "no such cmd: foobar",
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"bad cmd" : {
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"foobar" : 1
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},
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"ok" : 0
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}
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> db.version()
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2.2.0
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> db.runCommand("foobar")
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{
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"errmsg" : "no such cmd: foobar",
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"bad cmd" : {
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"foobar" : 1
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},
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"ok" : 0
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}
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> db.version()
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2.2.7
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>
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> db.runCommand("foobar")
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{
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"errmsg" : "no such cmd: foobar",
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"bad cmd" : {
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"foobar" : 1
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},
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"ok" : 0
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}
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> db.version()
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2.4.0
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> db.runCommand("foobar")
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{
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"ok" : 0,
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"errmsg" : "no such cmd: foobar",
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"bad cmd" : {
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"foobar" : 1
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}
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}
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> db.version()
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2.4.10
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> db.runCommand("foobar")
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{
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"ok" : 0,
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"errmsg" : "no such cmd: foobar",
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"bad cmd" : {
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"foobar" : 1
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}
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}
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Attachments
Issue Links
- depends on
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CDRIVER-362 mongos can return error 13390 for unknown command
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- Closed
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PYTHON-696 Index and user manipulation broken with mongos versions before 2.4.0
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- Closed
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RUBY-755 Index and user creation broken with mongos versions before 2.4.0
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- Closed
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- related to
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DRIVERS-103 Manipulate user objects exclusively via commands
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- Closed
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CXX-189 Add Create Index Helper
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- Closed
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DRIVERS-132 Use createIndexes command when available
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- Closed
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