Segmentation fault when setting ReplicaSet with Node.js 0.8.0

[murvinlai]

When I set the mongoose connection using replicaSet (e.g mongoose.connectSet( )) it will return segmentation fault or this: ../deps/uv/src/uv-common.h:101: uv__req_unregister: Assertion `uv__has_active_reqs(loop)' failed. And kill the program.

but when I just connect to single mongo, then that's ok.

I'm running on Node0.8.0, ubuntu, Mongo is 2.0.2

Here is the bt :

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7001ed8 in ?? () from /lib/libc.so.6
(gdb) ^CQuit
(gdb) bt
#0 0x00007ffff7001ed8 in ?? () from /lib/libc.so.6
#1 0x00000000005fbdc3 in uvstream_destroy (stream=0xed7ac0) at ../deps/uv/src/unix/stream.c:124
#2 0x00000000005e96b6 in uvfinishclose (loop=0xe7b520) at ../deps/uv/src/unix/core.c:151
#3 uvrun_closing_handles (loop=0xe7b520) at ../deps/uv/src/unix/core.c:181
#4 uv_run (loop=0xe7b520) at ../deps/uv/src/unix/core.c:259
#5 0x00000000005e97f0 in uv_run (loop=0xe7b520) at ../deps/uv/src/unix/core.c:265
#6 0x000000000059e6c5 in node::Start(int, char**) ()
#7 0x00007ffff6ca1c4d in __libc_start_main () from /lib/libc.so.6
#8 0x00000000005949fd in _start ()

[aheckmann]

This is either a bug in node or the mongo driver. Please provide mongoose and Ubuntu versions as well.

cc @christkv

On Jun 27, 2012, at 5:30 PM, Murvin Laireply@reply.github.com wrote:

When I set the mongoose connection using replicaSet (e.g mongoose.connectSet( )) it will return segmentation fault or this: ../deps/uv/src/uv-common.h:101: uv__req_unregister: Assertion `uv__has_active_reqs(loop)' failed. And kill the program.

but when I just connect to single mongo, then that's ok.

I'm running on Node0.8.0, ubuntu, Mongo is 2.0.2

Here is the bt :

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7001ed8 in ?? () from /lib/libc.so.6
(gdb) ^CQuit
(gdb) bt
#0 0x00007ffff7001ed8 in ?? () from /lib/libc.so.6
#1 0x00000000005fbdc3 in uvstream_destroy (stream=0xed7ac0) at ../deps/uv/src/unix/stream.c:124
#2 0x00000000005e96b6 in uvfinishclose (loop=0xe7b520) at ../deps/uv/src/unix/core.c:151
#3 uvrun_closing_handles (loop=0xe7b520) at ../deps/uv/src/unix/core.c:181
#4 uv_run (loop=0xe7b520) at ../deps/uv/src/unix/core.c:259
#5 0x00000000005e97f0 in uv_run (loop=0xe7b520) at ../deps/uv/src/unix/core.c:265
#6 0x000000000059e6c5 in node::Start(int, char**) ()
#7 0x00007ffff6ca1c4d in __libc_start_main () from /lib/libc.so.6
#8 0x00000000005949fd in _start ()

---

Reply to this email directly or view it on GitHub:
#987

[aheckmann]

or libuv

On Jun 27, 2012, at 5:30 PM, Murvin Laireply@reply.github.com wrote:

When I set the mongoose connection using replicaSet (e.g mongoose.connectSet( )) it will return segmentation fault or this: ../deps/uv/src/uv-common.h:101: uv__req_unregister: Assertion `uv__has_active_reqs(loop)' failed. And kill the program.

but when I just connect to single mongo, then that's ok.

I'm running on Node0.8.0, ubuntu, Mongo is 2.0.2

Here is the bt :

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7001ed8 in ?? () from /lib/libc.so.6
(gdb) ^CQuit
(gdb) bt
#0 0x00007ffff7001ed8 in ?? () from /lib/libc.so.6
#1 0x00000000005fbdc3 in uvstream_destroy (stream=0xed7ac0) at ../deps/uv/src/unix/stream.c:124
#2 0x00000000005e96b6 in uvfinishclose (loop=0xe7b520) at ../deps/uv/src/unix/core.c:151
#3 uvrun_closing_handles (loop=0xe7b520) at ../deps/uv/src/unix/core.c:181
#4 uv_run (loop=0xe7b520) at ../deps/uv/src/unix/core.c:259
#5 0x00000000005e97f0 in uv_run (loop=0xe7b520) at ../deps/uv/src/unix/core.c:265
#6 0x000000000059e6c5 in node::Start(int, char**) ()
#7 0x00007ffff6ca1c4d in __libc_start_main () from /lib/libc.so.6
#8 0x00000000005949fd in _start ()

---

Reply to this email directly or view it on GitHub:
#987

[christkv]

this happening using the pure js bson driver then it's definitively a possible case for a 0.8 bug.

[christkv]

I'm also not seeing this while running the test suite for replicasets.

[aheckmann]

yeah unable to repro on my Mac. will try Ubuntu today.

On Jun 27, 2012, at 5:30 PM, Murvin Laireply@reply.github.com wrote:

When I set the mongoose connection using replicaSet (e.g mongoose.connectSet( )) it will return segmentation fault or this: ../deps/uv/src/uv-common.h:101: uv__req_unregister: Assertion `uv__has_active_reqs(loop)' failed. And kill the program.

but when I just connect to single mongo, then that's ok.

I'm running on Node0.8.0, ubuntu, Mongo is 2.0.2

Here is the bt :

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7001ed8 in ?? () from /lib/libc.so.6
(gdb) ^CQuit
(gdb) bt
#0 0x00007ffff7001ed8 in ?? () from /lib/libc.so.6
#1 0x00000000005fbdc3 in uvstream_destroy (stream=0xed7ac0) at ../deps/uv/src/unix/stream.c:124
#2 0x00000000005e96b6 in uvfinishclose (loop=0xe7b520) at ../deps/uv/src/unix/core.c:151
#3 uvrun_closing_handles (loop=0xe7b520) at ../deps/uv/src/unix/core.c:181
#4 uv_run (loop=0xe7b520) at ../deps/uv/src/unix/core.c:259
#5 0x00000000005e97f0 in uv_run (loop=0xe7b520) at ../deps/uv/src/unix/core.c:265
#6 0x000000000059e6c5 in node::Start(int, char**) ()
#7 0x00007ffff6ca1c4d in __libc_start_main () from /lib/libc.so.6
#8 0x00000000005949fd in _start ()

---

Reply to this email directly or view it on GitHub:
#987

[murvinlai]

mongoose@2.7.1
and
Ubuntu 10.04.4

[murvinlai]

Sample program:

var mongoose = require('mongoose');
var express = require('express');
var db_replica_set_path = 'mongodb://10.100.10.190:27017/mydatabase,10.100.10.190:27018/mydatabase';
mongoose.connectSet(db_replica_set_path);

var app = express.createServer();

app.get('/test', function (req, res) {
res.send("OK");
});

app.listen(3445);

------------- RESULT------------------

$ sudo node test-mongoose.js
node: ../src/tcp_wrap.cc:353: static void node::TCPWrap::AfterConnect(uv_connect_t*, int): Assertion `req_wrap->object_.IsEmpty() == false' failed.
Aborted

---

or just:
var mongoose = require('mongoose');
var db_replica_set_path = 'mongodb://10.100.10.190:27017/mydatabase,10.100.10.190:27018/mydatabase';
mongoose.connectSet(db_replica_set_path);

will return the same thing.

[aheckmann]

did this work on node 0.6.19?

[aheckmann]

reproduced it on ubuntu 12.04.

the fix: prefix your hosts with "mongodb://"

var db_replica_set_path = 'mongodb://10.100.10.190:27017/mydatabase,mongodb://10.100.10.190:27018/mydatabase';
mongoose.connectSet(db_replica_set_path);

[aheckmann]

need to put a check in place for this.

[aheckmann]

works fine on node 0.6.19. node 0.8 bug.

[murvinlai]

It worked on Node 0.6.19 but not 0.8.0

[murvinlai]

yes.. the fix works. has to put mongodb:// for every ip/ url.
thanks. :)

[aheckmann]

mongoose was broken and passing through invalid host/ports.