Description
The following assertion has cropped up in several cases:
Sat Sep 24 17:51:53 [conn18] Assertion failure cc->_pinValue < 100
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db/clientcursor.h 309
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0x10007d703 0x100087eec 0x1002d64da 0x1003de782 0x1003e272a
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0x100603394 0x100148d8c 0x10060a554 0x7fff830d18bf 0x7fff830d4b75
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0 mongod 0x000000010007d703
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_ZN5mongo12sayDbContextEPKc + 195
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1 mongod 0x0000000100087eec
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_ZN5mongo8assertedEPKcS1_j + 300
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2 mongod 0x00000001002d64da
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_ZN5mongo12ClientCursor5eraseEiPx + 938
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3 mongod 0x00000001003de782
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_ZN5mongo19receivedKillCursorsERNS_7MessageE + 274
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4 mongod 0x00000001003e272a
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_ZN5mongo16assembleResponseERNS_7MessageERNS_10DbResponseERKNS_11HostAndPortE
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+ 794
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5 mongod 0x0000000100603394
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_ZN5mongo16MyMessageHandler7processERNS_7MessageEPNS_21AbstractMessagingPortEPNS_9LastErrorE
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+ 148
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6 mongod 0x0000000100148d8c
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_ZN5mongo3pms9threadRunEPNS_13MessagingPortE + 700
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7 mongod 0x000000010060a554
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thread_proxy + 132
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8 libsystem_c.dylib 0x00007fff830d18bf
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_pthread_start + 335
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9 libsystem_c.dylib 0x00007fff830d4b75
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thread_start + 13
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Sat Sep 24 17:51:53 [conn18] killcursors exception: assertion db/
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clientcursor.h:309 321ms
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FREE-3022
FREE-3393
CS-1730
CS-1938
probably more, in the logs
Simplest explanation is that a cursor is being killed while in use by a get more (the get more may or may not be yielding). We might want to make the assertion a little more readable.
Also, three of the four cases above seemed to occur with the php driver and in the remaining case I couldn't tell which driver was used. So the cause could be a client side issue, either in the driver or the way the driver is being used.