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From: ebiederm@xmission.com (Eric W. Biederman)
To: Eric Wong <e@80x24.org>
Cc: meta@public-inbox.org
Subject: Re: [WIP] searchidx: support incremental indexing on indexlevel=basic
Date: Thu, 02 Aug 2018 07:25:37 -0500
Message-ID: <87wot9hs5a.fsf@xmission.com> (raw)
In-Reply-To: <20180802034404.cnvfqlgvynamnc6n@whir>

Eric Wong <e@80x24.org> writes:

> I wrote:
>> While testing this, it looks like I introduced a bug to
>> indexlevel=basic which broke incremental indexing when I made it
>> possible to upgrade to (medium|full).  Patch coming for that in
>> a bit...
>
> Eep, I think there's deeper problems with indexlevel=basic and
> incremental updates, since it's still doing lookups against
> Xapian for deletes...
>
> This is my work-in-progress to stop full-reindexing, at least.

So I don't think your change is quite right.

If the repo has only lived with indexlevel == 'basic' then last_commit
should always match the output of xdb->get_metadata('last_commit') as
it will always been undef or ''.

In fact I don't see any code that is updating
$xdb->get_metadata('last_commit');

Am I wrong or can we just always use mm->last_commit for this logic?

Eric

> ----8<-----
> Subject: [PATCH] searchidx: support incremental indexing on indexlevel=basic
>
> ---
>  lib/PublicInbox/SearchIdx.pm | 13 +++++++++++--
>  1 file changed, 11 insertions(+), 2 deletions(-)
>
> diff --git a/lib/PublicInbox/SearchIdx.pm b/lib/PublicInbox/SearchIdx.pm
> index 54f82aa..5cac08f 100644
> --- a/lib/PublicInbox/SearchIdx.pm
> +++ b/lib/PublicInbox/SearchIdx.pm
> @@ -668,6 +668,15 @@ sub need_update ($$$) {
>  	($n eq '' || $n > 0);
>  }
>  
> +sub _last_x_commit {
> +	my ($self) = @_;
> +	if ($self->{indexlevel} =~ $xapianlevels) {
> +		$self->{xdb}->get_metadata('last_commit');
> +	} else {
> +		$self->{mm}->last_commit || '';
> +	}
> +}
> +
>  # indexes all unindexed messages (v1 only)
>  sub _index_sync {
>  	my ($self, $opts) = @_;
> @@ -682,7 +691,7 @@ sub _index_sync {
>  	do {
>  		$xlog = undef;
>  		$mkey = 'last_commit';
> -		$last_commit = $xdb->get_metadata('last_commit');
> +		$last_commit = $self->_last_x_commit;
>  		$lx = $last_commit;
>  		if ($reindex) {
>  			$lx = '';
> @@ -707,7 +716,7 @@ sub _index_sync {
>  		$xlog = _git_log($self, $range);
>  
>  		$xdb = $self->begin_txn_lazy;
> -	} while ($xdb->get_metadata('last_commit') ne $last_commit);
> +	} while ($self->_last_x_commit ne $last_commit);
>  
>  	my $dbh = $mm->{dbh} if $mm;
>  	my $cb = sub {

  reply index

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-01 16:41 [PATCH 00/13]: Incremental index fixes ebiederm
2018-08-01 16:43 ` [PATCH 01/13] Import.pm: Don't assume {in} and {out} always exist Eric W. Biederman
2018-08-01 16:43 ` [PATCH 02/13] t/v1reindex.t: Isolate the test cases Eric W. Biederman
2018-08-01 16:43 ` [PATCH 03/13] t/v2reindex.t: Isolate the test cases more Eric W. Biederman
2018-08-01 16:43 ` [PATCH 04/13] t/v[12]reindex.t: Place expected second in Xapian tests Eric W. Biederman
2018-08-01 16:43 ` [PATCH 05/13] t/v[12]reindex.t: Test that the resulting msgmap is as expected Eric W. Biederman
2018-08-01 16:43 ` [PATCH 06/13] t/v[12]reindex.t: Test incremental indexing works Eric W. Biederman
2018-08-01 16:43 ` [PATCH 07/13] SearchIdx.pm: Always assign numbers backwards during incremental indexing Eric W. Biederman
2018-08-01 16:43 ` [PATCH 08/13] Msgmap.pm: Track the largest value of num ever assigned Eric W. Biederman
2018-08-02  3:00   ` Eric Wong
2018-08-02  3:44     ` [WIP] searchidx: support incremental indexing on indexlevel=basic Eric Wong
2018-08-02 12:25       ` ebiederm [this message]
2018-08-02 17:12         ` ebiederm
2018-08-02 18:15           ` ebiederm
2019-05-14  2:04       ` [PATCH 0/3] incremental index fixes for indexlevel=basic Eric Wong
2019-05-14  2:04         ` [PATCH 1/3] v1writable: new wrapper which is closer to v2writable Eric Wong
2019-05-14  2:04         ` [PATCH 2/3] v2writable: allow setting nproc via creat options Eric Wong
2019-05-14  2:04         ` [PATCH 3/3] searchidx: fix incremental index with indexlevel=basic on v1 Eric Wong
2018-08-02 12:08     ` [PATCH 08/13] Msgmap.pm: Track the largest value of num ever assigned ebiederm
2018-08-01 16:43 ` [PATCH 09/13] t/v[12]reindex.t Verify num_highwater Eric W. Biederman
2018-08-01 16:43 ` [PATCH 10/13] t/v[12]reindex.t: Verify the num highwater is as expected Eric W. Biederman
2018-08-01 16:43 ` [PATCH 11/13] SearchIdx,V2Writeable: Update num_highwater on optimized deletes Eric W. Biederman
2018-08-01 16:43 ` [PATCH 12/13] V2Writeable.pm: Ensure that a found message number is in the msgmap Eric W. Biederman
2018-08-01 16:43 ` [PATCH 13/13] V2Writeable.pm: In unindex_oid delete the message from msgmap Eric W. Biederman

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