Hello,

I made some additional tests.

The problem is only present when kamailio is facing mongo release 3.2 (or higher).

With mongo version 3.0 (or lower), the request sent by kamailio is different: it contains $query and $table_version elements and mongo accepts it.

Kind regards,

Stephane

On 23 February 2018 at 10:48, Stephane <mandalavoip@gmail.com> wrote:

Hello Daniel,

I took a pcap trace. And I see the following in the answer sent by mongo

Failed to parse: { find: "version", filter: { table_name: "location" }, table_version: 1, $db: "kamailio", $readPreference: { mode: "primaryPreferred" }, $clusterTime: { clusterTime: Timestamp(1519379980, 1), signature: { hash: BinData(0, 0000000000000000000000000000000000000000), keyId: 0 } } }. Unrecognized field 'table_version'.code codeNameFailedToParseoperationTimeZ$clusterTimeXclusterTimeZsignature3hashkeyId

Kind regards,

Stephane
On 23 February 2018 at 09:39, Daniel-Constantin Mierla <miconda@gmail.com> wrote:
Hello,

I don't know if you can see the result sent back by mongodb in its logs, it doesn't show it there. Maybe you can sniff the traffic on the network and see if mongodb sends the proper response back. Kamailio logs like nothing was retrieved.

Cheers,
Daniel

On 22.02.18 18:02, Stephane Focant wrote:
Hello,

I have an issue when I try to use kamailio 5.1 with usrloc and db_mongdb modules.

When I try to start kamailio, I get the following error:

0(22216) DEBUG: <core> [db.c:314]: db_do_init2(): connection 0x7f735b5c4100 not found in pool

0(22216) DEBUG: db_mongodb [mongodb_connection.c:55]: db_mongodb_new_connection(): connection open to: mongodb://10.0.12.149,10.0.12.150,10.0.12.151/kamailio?replicaSet=sre_location&slaveOk=true&readPreference=primaryPreferred

0(22216) DEBUG: db_mongodb [mongodb_dbase.c:864]: db_mongodb_query(): query to collection [version]

0(22216) DEBUG: db_mongodb [mongodb_dbase.c:898]: db_mongodb_query(): query filter: { "table_name" : "location" }

0(22216) DEBUG: db_mongodb [mongodb_dbase.c:917]: db_mongodb_query(): columns filter: { "table_version" : 1 }

0(22216) DEBUG: <core> [db_res.c:120]: db_new_result(): allocate 56 bytes for result set at 0x7f735b5c4450

0(22216) DEBUG: db_mongodb [mongodb_dbase.c:746]: db_mongodb_store_result(): no result from mongodb

0(22216) DEBUG: <core> [db.c:404]: db_table_version(): no row for table location found

0(22216) ERROR: <core> [db.c:450]: db_check_table_version(): invalid version 0 for table location found, expected 9 (check table structure and table "version")

0(22216) ERROR: usrloc [dlist.c:659]: register_udomain(): error during table version check.

0(22216) DEBUG: <core> [db_pool.c:100]: pool_remove(): removing connection from the pool

0(22216) ERROR: registrar [registrar.c:651]: domain_fixup(): failed to register domain

0(22216) ERROR: <core> [core/route.c:1154]: fix_actions(): fixing failed (code=-1) at cfg:/usr/local/kamailio-5.1/etc/kamailio/kamailio.cfg:660

0(22216) ERROR: <core> [core/rvalue.c:3860]: fix_rval_expr(): failure in cfg at line: 660 col: 22

0(22216) ERROR: <core> [core/rvalue.c:3860]: fix_rval_expr(): failure in cfg at line: 660 col: 22

0(22216) ERROR: <core> [core/route.c:1154]: fix_actions(): fixing failed (code=-1) at cfg:/usr/local/kamailio-5.1/etc/kamailio/kamailio.cfg:663

ERROR: error -1 while trying to fix configuration

0(22216) DEBUG: tm [t_funcs.c:85]: tm_shutdown(): start

0(22216) DEBUG: tm [t_funcs.c:88]: tm_shutdown(): emptying hash table

0(22216) DEBUG: tm [t_funcs.c:90]: tm_shutdown(): removing semaphores

0(22216) DEBUG: tm [t_funcs.c:92]: tm_shutdown(): destroying tmcb lists

0(22216) DEBUG: tm [t_funcs.c:95]: tm_shutdown(): done

0(22216) INFO: <core> [core/sctp_core.c:53]: sctp_core_destroy(): SCTP API not initialized

0(22216) DEBUG: <core> [core/mem/shm.c:261]: shm_destroy_manager(): destroying memory manager: q_malloc

0(22216) DEBUG: <core> [core/mem/q_malloc.c:1165]: qm_shm_lock_destroy(): destroying the shared memory lock

0(22216) DEBUG: <core> [core/mem/pkg.c:91]: pkg_destroy_manager(): destroying memory manager: q_malloc

In mongoDB, I have the collection "version" in the db kamailio, and the entries needed for usrloc (location and location_attrs):

sre_location:PRIMARY> use kamailio

switched to db kamailio

sre_location:PRIMARY> db.getCollection("version").find()

{ "_id" : ObjectId("5a8ec43c601b262bef82a595"), "table_name" : "location", "table_version" : 9 }

{ "_id" : ObjectId("5a8edb72a3ec40427577b8d0"), "table_name" : "location_attrs", "table_version" : 1 }

And logs in mongo show the following info when kamailio starts:

2018-02-22T17:13:02.604+0100 I NETWORK [conn90] received client metadata from 10.0.12.180:56320 conn: { driver: { name: "mongoc", version: "1.9.2" }, os: { type: "Linux", name: "CentOS", version: "6.9 (Final)", architecture: "x86_64" }, platform: "cfg=0x1563000 posix=200809 CC=GCC 4.4.7 20120313 (Red Hat 4.4.7-18) CFLAGS="" LDFLAGS=""" }

2018-02-22T17:13:02.604+0100 I COMMAND [conn90] command admin.$cmd command: isMaster { isMaster: 1, client: { driver: { name: "mongoc", version: "1.9.2" }, os: { type: "Linux", name: "CentOS", version: "6.9 (Final)", architecture: "x86_64" }, platform: "cfg=0x1563000 posix=200809 CC=GCC 4.4.7 20120313 (Red Hat 4.4.7-18) CFLAGS="" LDFLAGS=""" }, compression: [], $readPreference: { mode: "secondaryPreferred" }, $db: "admin" } numYields:0 reslen:716 locks:{} protocol:op_query 0ms

2018-02-22T17:13:02.604+0100 I COMMAND [conn90] command kamailio.$cmd command: find { find: "version", filter: { table_name: "location" }, table_version: 1, $db: "kamailio", $readPreference: { mode: "primaryPreferred" }, $clusterTime: { clusterTime: Timestamp(1519315979, 1), signature: { hash: BinData(0, 0000000000000000000000000000000000000000), keyId: 0 } } } numYields:0 reslen:531 locks:{} protocol:op_msg 0ms

2018-02-22T17:13:02.605+0100 I NETWORK [conn90] end connection 10.0.12.180:56320 (9 connections now open)

I probably miss something: it is not clear to me why kamailio is not able to retrieve the value of table_version for the table_name location. Any idea would be very welcome !

I use mongo-c-driver 1.9.2 and mongodb 3.6

Thank you.

Stephane
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