On Fri, Nov 20, 2009 at 2:33 PM, Tom Lane <tgl@xxxxxxxxxxxxx> wrote:
> Scott Marlowe <scott.marlowe@xxxxxxxxx> writes:
>> I get this running mnogosearch against my 8.4.1 database consistently:
>> PANIC: failed to add item to the right sibling in index "logged_in_uid"
>
> Huh. Don't suppose you can extract a reproducible test case ;-).
> What are the exact definitions of the table and index?
Oh hey, whaddya know, the problem was a symptom that showed up in
mnogosearch, but it came from our stats database.
\d logged_in
Table "public.logged_in"
Column | Type |
Modifiers
-----------------+--------------------------+------------------------------------------------------------------
logged_in_id | integer | not null default
nextval('logged_in_logged_in_id_seq'::regclass)
uid | integer |
timestamp | timestamp with time zone | default now()
remote_addr | text |
orgid | integer |
orig_session_id | text |
new_session_id | text |
logout_reason | text |
Indexes:
"logged_in_id" PRIMARY KEY, btree (logged_in_id)
"logged_in_timestamp" btree ("timestamp")
"logged_in_uid" btree (uid)
Problem is we insert 125k rows a day and get that signal 6 every one
to four days. So a reproduceable test case may involved insertinto
400k or more rows to make it happen. I'll see what I can do.
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