From: Han Xin <hanxin.hx@bytedance.com>
To: hanxin.hx@bytedance.com
Cc: chiyutianyi@gmail.com, derrickstolee@github.com,
git@vger.kernel.org, haiyangtand@gmail.com,
jonathantanmy@google.com, me@ttaylorr.com, ps@pks.im
Subject: [PATCH v2 0/2] commit-graph.c: no lazy fetch in lookup_commit_in_graph()
Date: Fri, 24 Jun 2022 13:27:55 +0800 [thread overview]
Message-ID: <cover.1656044659.git.hanxin.hx@bytedance.com> (raw)
In-Reply-To: <20220618030130.36419-1-hanxin.hx@bytedance.com>
This patch fixes the following issue:
When we found the commit in the graph in lookup_commit_in_graph(), but
the commit is missing from the repository, we will try
promisor_remote_get_direct() and then enter another loop.
Then we will go into an endless loop:
git fetch -> deref_without_lazy_fetch() ->
lookup_commit_in_graph() -> repo_has_object_file() ->
promisor_remote_get_direct() -> fetch_objects() ->
git fetch (a new loop round)
Changes since v1:
* add run_with_limited_processses() to test-lib so that we can use it to
limit forking subprocesses. As we didn't check the return value of
promise_remote_get_direct(), "git fetch" would finally succeed due to:
error: cannot fork() for -c: Resource temporarily unavailable
fatal: promisor-remote: unable to fork off fetch subprocess
* Rename test repositories, reference name and use GIT_TRACE to observe
the fetch process.
Han Xin (2):
test-lib.sh: add limited processes to test-lib
commit-graph.c: no lazy fetch in lookup_commit_in_graph()
commit-graph.c | 2 +-
t/t5329-no-lazy-fetch-with-commit-graph.sh | 47 ++++++++++++++++++++++
t/test-lib.sh | 9 +++++
3 files changed, 57 insertions(+), 1 deletion(-)
create mode 100755 t/t5329-no-lazy-fetch-with-commit-graph.sh
Range-diff against v1:
1: ebc14bfd5e < -: ---------- commit-graph.c: no lazy fetch in lookup_commit_in_graph()
-: ---------- > 1: 442a4c351d test-lib.sh: add limited processes to test-lib
-: ---------- > 2: d3a99a5c5a commit-graph.c: no lazy fetch in lookup_commit_in_graph()
--
2.36.1
next prev parent reply other threads:[~2022-06-24 5:31 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-14 7:25 An endless loop fetching issue with partial clone, alternates and commit graph Haiyng Tan
2022-06-15 2:18 ` Taylor Blau
2022-06-16 3:38 ` [RFC PATCH 0/2] " Han Xin
2022-06-16 3:38 ` [RFC PATCH 1/2] commit-graph.c: add "flags" to lookup_commit_in_graph() Han Xin
2022-06-16 3:38 ` [RFC PATCH 2/2] fetch-pack.c: pass "oi_flags" " Han Xin
2022-06-17 21:47 ` [RFC PATCH 0/2] Re: An endless loop fetching issue with partial clone, alternates and commit graph Jonathan Tan
2022-06-18 3:01 ` [PATCH v1] commit-graph.c: no lazy fetch in lookup_commit_in_graph() Han Xin
2022-06-20 7:07 ` Patrick Steinhardt
2022-06-20 8:53 ` [External] " 欣韩
2022-06-20 9:05 ` Patrick Steinhardt
2022-06-21 18:23 ` Jonathan Tan
2022-06-22 3:17 ` Han Xin
2022-06-24 5:27 ` Han Xin [this message]
2022-06-24 5:27 ` [PATCH v2 1/2] test-lib.sh: add limited processes to test-lib Han Xin
2022-06-24 16:03 ` Junio C Hamano
2022-06-25 1:35 ` Han Xin
2022-06-27 12:22 ` Junio C Hamano
2022-06-24 5:27 ` [PATCH v2 2/2] commit-graph.c: no lazy fetch in lookup_commit_in_graph() Han Xin
2022-06-24 16:56 ` Junio C Hamano
2022-06-25 2:25 ` Han Xin
2022-06-25 2:31 ` Han Xin
2022-06-28 2:02 ` [PATCH v3 0/2] " Han Xin
2022-06-28 2:02 ` [PATCH v3 1/2] test-lib.sh: add limited processes to test-lib Han Xin
2022-06-28 2:02 ` [PATCH v3 2/2] commit-graph.c: no lazy fetch in lookup_commit_in_graph() Han Xin
2022-06-28 7:49 ` Ævar Arnfjörð Bjarmason
2022-06-28 17:36 ` Junio C Hamano
2022-06-30 12:21 ` Johannes Schindelin
2022-06-30 13:43 ` Ævar Arnfjörð Bjarmason
2022-06-30 15:40 ` Junio C Hamano
2022-06-30 18:47 ` Ævar Arnfjörð Bjarmason
2022-07-01 19:31 ` Johannes Schindelin
2022-07-01 20:47 ` Junio C Hamano
2022-06-29 2:08 ` Han Xin
2022-06-30 17:37 ` test name conflict + js/ci-github-workflow-markup regression (was: [PATCH v3 0/2] no lazy fetch in lookup_commit_in_graph()) Ævar Arnfjörð Bjarmason
2022-07-01 1:34 ` [PATCH v4 0/1] no lazy fetch in lookup_commit_in_graph() Han Xin
2022-07-01 1:34 ` [PATCH v4 1/1] commit-graph.c: " Han Xin
2022-07-09 12:23 ` Michael J Gruber
2022-07-11 15:09 ` Jeff King
2022-07-11 20:17 ` Junio C Hamano
2022-07-12 1:52 ` [External] " Han Xin
2022-07-12 5:23 ` Junio C Hamano
2022-07-12 5:32 ` Han Xin
2022-07-12 6:37 ` [External] " Jeff King
2022-07-12 14:19 ` Junio C Hamano
2022-07-12 6:50 ` [PATCH v5 0/1] " Han Xin
2022-07-12 6:50 ` [PATCH v5 1/1] commit-graph.c: " Han Xin
2022-07-12 9:50 ` Ævar Arnfjörð Bjarmason
2022-07-13 1:26 ` Han Xin
2022-07-12 6:58 ` [PATCH v5 0/1] " Jeff King
2022-07-12 8:01 ` [PATCH v1] t5330: remove run_with_limited_processses() Han Xin
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