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Type:
Bug
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Resolution: Done
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Priority:
Trivial - P5
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None
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Affects Version/s: 2.7.4
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Component/s: Logging
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Fully Compatible
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ALL
The parsing of options around setting log levels has some unpredictable results for edge cases.
Case 1:
If you set a negative log level using the new input method the log level gets set to 0. However, if you use the log level to just under the max int value you can get a negative log level to get set. Additionally, if you use a very very large number, nothing gets set at all.
examples:
Using:
--setParameter logComponentVerbosity="{verbosity: -1}"
Sets:
> db.runCommand({getParameter: 1, logLevel:1})
{ "logLevel" : 0, "ok" : 1 }
But using:
--setParameter logComponentVerbosity="{verbosity: 2147438580}"
Sets:
> db.runCommand({getParameter: 1, logLevel:1})
{ "logLevel" : -12, "ok" : 1 }
And using:
--setParameter logComponentVerbosity="{verbosity: 999999999999999999}
Sets:
> db.runCommand({getParameter: 1, logLevel:1})
{ "logLevel" : 0, "ok" : 1 }
Case 2:
If you set log level as 1.9 or 1.1, the level gets interpreted as 1. However, if you set it to 1.999999999999999 the level will be 2.
Using:
--setParameter logComponentVerbosity="{verbosity: 1.999999999999}"
Sets:
> db.runCommand({getParameter: 1, logLevel:1})
{ "logLevel" : 1, "ok" : 1 }
However, using:
--setParameter logComponentVerbosity="{verbosity: 1.9999999999999999999999}"
Sets:
> db.runCommand({getParameter: 1, logLevel:1})
{ "logLevel" : 2, "ok" : 1 }
For context, build info of server I am running:
> db.runCommand({buildinfo:1})
{
"version" : "2.7.5-pre-",
"gitVersion" : "6e2f3346f21f8e5de68aa5099317512ef51eb023",
"OpenSSLVersion" : "",
"sysInfo" : "Linux localhost.localdomain 3.13.10-200.fc20.x86_64 #1 SMP Mon Apr 14 20:34:16 UTC 2014 x86_64 BOOST_LIB_VERSION=1_49",
"loaderFlags" : "-fPIC -pthread -Wl,-z,now -rdynamic",
"compilerFlags" : "-Wnon-virtual-dtor -Woverloaded-virtual -std=c++11 -fPIC -fno-strict-aliasing -ggdb -pthread -Wall -Wsign-compare -Wno-unknown-pragmas -Winvalid-pch -pipe -Werror -O3 -Wno-unused-local-typedefs -Wno-unused-function -Wno-deprecated-declarations -Wno-unused-but-set-variable -fno-builtin-memcmp -std=c99",
"allocator" : "tcmalloc",
"versionArray" : [
2,
7,
5,
-100
],
"javascriptEngine" : "V8",
"bits" : 64,
"debug" : false,
"maxBsonObjectSize" : 16777216,
"ok" : 1
}
- related to
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SERVER-15486 Improve setParameter logComponentVerbosity validation
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- Closed
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