Thu Aug 13 01:32:27.547 E INDEX    [repl index builder 10] IndexBuilder could not build index: Location28550 Unable to complete index build as the collection is no longer readable
Thu Aug 13 01:32:27.547 I -        [repl index builder 10] Fatal Assertion 28555
Thu Aug 13 01:32:27.548 I CONTROL  [repl index builder 10] 
 0xf936e9 0xf3be11 0xf1fa31 0xaacc4d 0xf226d0 0xfe19d8 0x7fe5a05ace9a 0x7fe59f6b02ed
----- BEGIN BACKTRACE -----
{"backtrace":[{"b":"400000","o":"B936E9"},{"b":"400000","o":"B3BE11"},{"b":"400000","o":"B1FA31"},{"b":"400000","o":"6ACC4D"},{"b":"400000","o":"B226D0"},{"b":"400000","o":"BE19D8"},{"b":"7FE5A05A5000","o":"7E9A"},{"b":"7FE59F5BC000","o":"F42ED"}],"processInfo":{ "mongodbVersion" : "3.0.5", "gitVersion" : "375b4ff0518938bb7e329e230a1b3659834083ad", "uname" : { "sysname" : "Linux", "release" : "3.11.0-19-generic", "version" : "#33~precise1-Ubuntu SMP Wed Mar 12 21:16:27 UTC 2014", "machine" : "x86_64" }, "somap" : [ { "elfType" : 2, "b" : "400000" }, { "b" : "7FFF9CCFE000", "elfType" : 3, "buildId" : "5EDDD3BB240EB2A3B97AD0AD8C475B1FFDFEAE4D" }, { "b" : "7FE5A09D2000", "path" : "/lib/x86_64-linux-gnu/libz.so.1", "elfType" : 3, "buildId" : "F695ECFCF3918D5D34989398A14B7ECDD9F46CD0" }, { "b" : "7FE5A07C2000", "path" : "/lib/x86_64-linux-gnu/libbz2.so.1.0", "elfType" : 3, "buildId" : "17A21CA21EE1CD2721821299CCAD4B9E373D6F32" }, { "b" : "7FE5A05A5000", "path" : "/lib/x86_64-linux-gnu/libpthread.so.0", "elfType" : 3, "buildId" : "C340AF9DEE97C17C730F7D03693286C5194A46B8" }, { "b" : "7FE5A039D000", "path" : "/lib/x86_64-linux-gnu/librt.so.1", "elfType" : 3, "buildId" : "352C5B373A50E6C4AB881A5DB6F5766FDF81EEE0" }, { "b" : "7FE5A0199000", "path" : "/lib/x86_64-linux-gnu/libdl.so.2", "elfType" : 3, "buildId" : "D181AF551DBBC43E9D55913D532635FDE18E7C4E" }, { "b" : "7FE59FE8D000", "path" : "/usr/lib/x86_64-linux-gnu/libstdc++.so.6", "elfType" : 3, "buildId" : "E0E944ED45B4FD4FDD728E563A6AE62C88985C68" }, { "b" : "7FE59FB91000", "path" : "/lib/x86_64-linux-gnu/libm.so.6", "elfType" : 3, "buildId" : "817AA99B3DD02501F8BC04A3E9A9358A08F20D7D" }, { "b" : "7FE59F97B000", "path" : "/lib/x86_64-linux-gnu/libgcc_s.so.1", "elfType" : 3, "buildId" : "ECF322A96E26633C5D10F18215170DD4395AF82C" }, { "b" : "7FE59F5BC000", "path" : "/lib/x86_64-linux-gnu/libc.so.6", "elfType" : 3, "buildId" : "57B3EB388FB6FE036D1E708259DACA7FCE990462" }, { "b" : "7FE5A0BE9000", "path" : "/lib64/ld-linux-x86-64.so.2", "elfType" : 3, "buildId" : "E25AD1A11CCF57E734116B8EC9C69F643DCA9F18" } ] }}
 mongod(_ZN5mongo15printStackTraceERSo+0x29) [0xf936e9]
 mongod(_ZN5mongo10logContextEPKc+0xE1) [0xf3be11]
 mongod(_ZN5mongo13fassertFailedEi+0x61) [0xf1fa31]
 mongod(_ZN5mongo12IndexBuilder3runEv+0x57D) [0xaacc4d]
 mongod(_ZN5mongo13BackgroundJob7jobBodyEv+0x120) [0xf226d0]
 mongod(+0xBE19D8) [0xfe19d8]
 libpthread.so.0(+0x7E9A) [0x7fe5a05ace9a]
 libc.so.6(clone+0x6D) [0x7fe59f6b02ed]
-----  END BACKTRACE  -----
Thu Aug 13 01:32:27.548 I -        [repl index builder 10]