[sr-dev] DB_REDIS Doesn't Seem to Work With Unfiltered Deletes

[Robert Boisvert]

Greetings,

I'm using the delete record feature as described in section 9.2.9
<http://www.asipto.com/pub/kamailio-devel-guide/#c09f_delete> of the
Kamailio SIP Server v3.2.0 Development Guide.  When I try to delete the
entire table without any filtering, as shown in the code below, DB_REDIS
fails.  Is this a bug?

Thank you in advance for your help,
Bob

*Log*
DEBUG: db_redis [redis_connection.c:118]: db_redis_connect(): connecting to
redis at 127.0.0.1:6379
DEBUG: db_redis [redis_connection.c:171]: db_redis_connect(): connection
opened to redis://127.0.0.1:6379/5
DEBUG: db_redis [redis_connection.c:232]: db_redis_new_connection():
connection opened to redis://127.0.0.1:6379/5
DEBUG: db_redis [redis_dbase.c:2019]: db_redis_delete(): deleting from
prefix (table) 'mohqcalls'
DEBUG: db_redis [redis_dbase.c:524]: db_redis_build_query_keys(): build
query keys
DEBUG: db_redis [redis_dbase.c:295]: db_redis_find_query_key(): checking
for existence of entry key 'call_id' in query
DEBUG: db_redis [redis_dbase.c:306]: db_redis_find_query_key(): found key
in entry key
DEBUG: db_redis [redis_dbase.c:123]: db_redis_val2str(): converting string
value 'a1960c88-640f2e0f-bf639d1a at 10.197.126.143' with len 41 to str
DEBUG: db_redis [redis_dbase.c:338]: db_redis_find_query_key(): entry key
so far is 'mohqcalls:entry::a1960c88-640f2e0f-bf639d1a at 10.197.126.143'
DEBUG: db_redis [redis_dbase.c:543]: db_redis_build_query_keys(): found
suitable entry key '
mohqcalls:entry::a1960c88-640f2e0f-bf639d1a at 10.197.126.143' for query
DEBUG: db_redis [redis_dbase.c:617]: db_redis_build_query_keys(): building
manual keys
DEBUG: db_redis [redis_dbase.c:254]: db_redis_build_entry_manual_keys():
checking for existence of entry key 'call_id' in query to get manual key
DEBUG: db_redis [redis_dbase.c:259]: db_redis_build_entry_manual_keys():
found key in entry key
DEBUG: db_redis [redis_dbase.c:1297]: db_redis_perform_delete(): delete all
keys
DEBUG: db_redis [redis_dbase.c:1303]: db_redis_perform_delete(): delete key
'mohqcalls:entry::a1960c88-640f2e0f-bf639d1a at 10.197.126.143'
DEBUG: db_redis [redis_connection.c:32]: print_query(): Query dump:
DEBUG: db_redis [redis_connection.c:34]: print_query():   EXISTS
DEBUG: db_redis [redis_connection.c:34]: print_query():
mohqcalls:entry::a1960c88-640f2e0f-bf639d1a at 10.197.126.143
DEBUG: db_redis [redis_table.c:154]: db_redis_key_list2arr(): returning 2
entries
DEBUG: db_redis [redis_connection.c:279]: db_redis_command_argv(): query
has 2 args
DEBUG: db_redis [redis_connection.c:32]: print_query(): Query dump:
DEBUG: db_redis [redis_connection.c:34]: print_query():   HMGET
DEBUG: db_redis [redis_connection.c:34]: print_query():
mohqcalls:entry::a1960c88-640f2e0f-bf639d1a at 10.197.126.143
DEBUG: db_redis [redis_table.c:154]: db_redis_key_list2arr(): returning 2
entries
DEBUG: db_redis [redis_connection.c:279]: db_redis_command_argv(): query
has 2 args
ERROR: db_redis [redis_dbase.c:1352]: db_redis_perform_delete(): Failed to
fetch type entry: ERR wrong number of arguments for 'hmget' command
ERROR: db_redis [redis_dbase.c:1460]: db_redis_perform_delete(): failed to
perform the delete
ERROR: db_redis [redis_dbase.c:2076]: db_redis_delete(): failed to do the
query
WARNING: mohqueue [mohq_db.c:278]: delete_call_rec(): delete_call_rec:
Unable to delete row from mohqcalls

*Code*
db_func_t *pdb = pmod_data->pdb;
pdb->use_table (pconn, &pmod_data->pcfg->db_ctable);
if (pdb->delete (pconn, 0, 0, 0, 0) < 0)
  {
  LM_WARN ("%sUnable to delete all rows from %s\n", pfncname,
    pmod_data->pcfg->db_ctable.s);
  }
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