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Stats collection for compressed chunks #415

Stats collection for compressed chunks

Stats collection for compressed chunks #415

Workflow file for this run

# This workflow uses an LLM agent to find bugs not covered by the existing
# tests. The LLM finds the possible bugs and generates a test script that
# triggers some kind of internal program error. The workflow then
# deterministically checks if the script actually reproduces the error, to
# avoid false positives.
name: LLM fuzzer
"on":
workflow_dispatch:
push:
branches:
- main
pull_request:
env:
PG_SRC_DIR: "pgbuild"
PG_INSTALL_DIR: "postgresql"
extra_packages: "clang-15 llvm-15 llvm-15-dev llvm-15-tools"
CC: "clang-15"
# gcc CFLAGS, disable inlining for function name pattern matching to work for suppressions
# CFLAGS: "-g -fsanitize=address,undefined -fno-omit-frame-pointer -O1 -fno-inline"
# CXXFLAGS: "-g -fsanitize=address,undefined -fno-omit-frame-pointer -O1 -fno-inline"
# clang CFLAGS
CFLAGS: "-g -fsanitize=address,undefined -fno-omit-frame-pointer -Og -fno-inline-functions"
CXXFLAGS: "-g -fsanitize=address,undefined -fno-omit-frame-pointer -Og -fno-inline-functions"
# We do not link libasan dynamically to avoid problems with libdl and our libraries.
# clang does this by default, but we need to explicitly state that for gcc.
# static gcc LDFLAGS
# LDFLAGS: "-fsanitize=address,undefined -static-libasan -static-liblsan -static-libubsan"
# static sanitizer clang LDFLAGS or dynamic sanitizer gcc LDFLAGS
LDFLAGS: "-fsanitize=address,undefined"
ASAN_OPTIONS: suppressions=${{ github.workspace }}/scripts/suppressions/suppr_asan.txt
detect_odr_violation=0 log_path=${{ github.workspace }}/sanitizer_logs/sanitizer
log_exe_name=true print_suppressions=false exitcode=27
detect_leaks=0 abort_on_error=1
LSAN_OPTIONS: suppressions=${{ github.workspace }}/scripts/suppressions/suppr_leak.txt
print_suppressions=0 log_path=${{ github.workspace }}/sanitizer_logs/sanitizer
log_exe_name=true print_suppressions=false exitcode=27
UBSAN_OPTIONS: suppressions=${{ github.workspace }}/scripts/suppressions/suppr_ub.txt
print_stacktrace=1 halt_on_error=1 log_path=${{ github.workspace }}/sanitizer_logs/sanitizer
log_exe_name=true print_suppressions=false exitcode=27
EXTENSIONS: "postgres_fdw test_decoding"
jobs:
config:
runs-on: ubuntu-latest
env:
key: ${{ secrets.ANTHROPIC_API_KEY }}
outputs:
pg_latest: ${{ steps.setter.outputs.PG18_LATEST
&& fromJson(steps.setter.outputs.PG18_LATEST)
|| '' }}
steps:
- name: Checkout source code
uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
- name: Read configuration
if: env.key
id: setter
run: python .github/gh_config_reader.py
fuzzer:
if: needs.config.outputs.pg_latest
name: LLM fuzzer PG${{ needs.config.outputs.pg_latest }}
runs-on: ubuntu-22.04
needs: config
permissions:
contents: read
pull-requests: read
issues: read
steps:
- name: Install Linux Dependencies
timeout-minutes: 15
run: |
sudo apt-get update
sudo apt-get install cmake flex bison systemd-coredump gdb \
jq ${{ env.extra_packages }}
- name: Checkout TimescaleDB
uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
with:
fetch-depth: 50
- name: Fetch base branch
if: github.event_name == 'pull_request'
run: git fetch origin ${{ github.event.pull_request.base.ref }} --depth=50
# We are going to rebuild Postgres daily, so that it doesn't suddenly break
# ages after the original problem.
- name: Get date for build caching
id: get-date
run: |
echo "date=$(date +"%d")" >> $GITHUB_OUTPUT
# Create a directory for sanitizer logs. This directory is referenced by
# ASAN_OPTIONS, LSAN_OPTIONS, and UBSAN_OPTIONS
- name: Create sanitizer log directory
run: |
mkdir ${{ github.workspace }}/sanitizer_logs
# we cache the build directory instead of the install directory here
# because extension installation will write files to install directory
# leading to a tainted cache
- name: Restore PostgreSQL ${{ needs.config.outputs.pg_latest }} cache
id: cache-postgresql
uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
with:
path: ~/${{ env.PG_SRC_DIR }}
key: "$llm-fuzzer-postgresql-${{ needs.config.outputs.pg_latest }}-${{ env.CC }}\
-${{ steps.get-date.outputs.date }}-${{ hashFiles('.github/**') }}"
- name: Build PostgreSQL ${{ needs.config.outputs.pg_latest }} if not in cache
if: steps.cache-postgresql.outputs.cache-hit != 'true'
run: |
wget -q -O postgresql.tar.bz2 \
https://ftp.postgresql.org/pub/source/v${{ needs.config.outputs.pg_latest }}/postgresql-${{ needs.config.outputs.pg_latest }}.tar.bz2
mkdir -p ~/$PG_SRC_DIR
tar --extract --file postgresql.tar.bz2 --directory ~/$PG_SRC_DIR --strip-components 1
# Add instrumentation to the Postgres memory contexts. For more details, see
# https://github.com/timescale/eng-database/wiki/Using-Address-Sanitizer#adding-more-instrumentation
PG_MAJOR=$(echo "${{ needs.config.outputs.pg_latest }}" | sed -e 's![.].*!!')
if [ ${PG_MAJOR} -lt 18 ]; then
patch -F5 -p1 -d ~/$PG_SRC_DIR < test/postgres-asan-instrumentation.patch
else
patch -F5 -p1 -d ~/$PG_SRC_DIR < test/postgres-asan-instrumentation-PG18GE.patch
fi
cd ~/$PG_SRC_DIR
./configure --prefix=$HOME/$PG_INSTALL_DIR --enable-debug --enable-cassert \
--with-openssl --without-readline --without-zlib --without-libxml
make -j$(getconf _NPROCESSORS_ONLN)
for ext in ${EXTENSIONS}; do
make -j$(getconf _NPROCESSORS_ONLN) -C contrib/${ext}
done
- name: Save PostgreSQL ${{ needs.config.outputs.pg_latest }} cache
if: steps.cache-postgresql.outputs.cache-hit != 'true'
uses: actions/cache/save@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
with:
path: ~/${{ env.PG_SRC_DIR }}
key: ${{ steps.cache-postgresql.outputs.cache-primary-key }}
- name: Upload config.log
if: always() && steps.cache-postgresql.outputs.cache-hit != 'true'
uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
with:
name: config.log for PostgreSQL
path: ~/${{ env.PG_SRC_DIR }}/config.log
- name: Install PostgreSQL ${{ needs.config.outputs.pg_latest }}
run: |
cd ~/$PG_SRC_DIR
make install
for ext in ${EXTENSIONS}; do
make -C contrib/${ext} install
done
~/$PG_INSTALL_DIR/bin/pg_config --version
- name: Build TimescaleDB
run: |
./bootstrap -DCMAKE_BUILD_TYPE=Debug -DPG_SOURCE_DIR=~/$PG_SRC_DIR \
-DPG_PATH=~/$PG_INSTALL_DIR -DCODECOVERAGE=OFF
make -j$(getconf _NPROCESSORS_ONLN) -C build
make -C build install
- name: Install Claude Code
run: npm install -g @anthropic-ai/claude-code@2.1.104
- name: LLM Fuzzing
id: llm-fuzzing
env:
ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
run: |
export PATH=$HOME/$PG_INSTALL_DIR/bin:$PATH
export PGDATABASE=postgres
rc=0
claude -p --output-format stream-json --verbose \
--max-budget-usd 5.00 --dangerously-skip-permissions \
--model opus --effort high \
"$(cat <<'PROMPT'
Find bugs in the TimescaleDB code modified in this change set. Focus
on crashes, assertion failures, sanitizer errors, and internal errors
(SQLSTATE XX000) -- these are detected automatically from server
logs. Do not chase wrong-result bugs that need manual verification.
That is, if you see a bug, but it manifests in a way that is not
going to be caught by the reproduction step of this workflow, choose
another bug. Stop after one reproducible bug.
Read the workflow at .github/workflows/llm-fuzzer.yaml. You are
running in that workflow. PostgreSQL with TimescaleDB is already
built and installed, with AddressSanitizer enabled. The build
environment is functional, use it to rebuild with debug logging as
needed.
Determine whether we are testing a PR or a commit on a branch. Focus
on the changes in that change set. Do not explore unrelated git
history or old commits.
Only use public SQL APIs (CREATE, ALTER, SELECT, INSERT, etc. and
documented timescaledb functions). Do not directly modify internal
catalog tables (_timescaledb_catalog.*, _timescaledb_internal.*) --
corrupting internal state is not a useful bug. The goal is to find
inputs that break the code through its public interface.
When done, generate a self-contained ~/llm-fuzzer-repro.sql that
reproduces the error when the subsequent workflow step replays it
against a fresh server.
Some details about the GitHub Actions event that triggered this workflow
what=${{ github.event.pull_request.title || github.event.head_commit.message || github.event.schedule || github.event_name }}
branch=${{ github.head_ref || github.ref_name }}
base=${{ github.base_ref || github.ref_name }}
event=${{ github.event_name }}
sha=${{ github.event.pull_request.head.sha || github.sha }}
PROMPT
)" > ${{ runner.temp }}/claude-execution-output.json || rc=$?
# When it goes over the budget, mostly it terminates gracefully because
# the agent is aware of the remaining budget, but sometimes there's a
# forceful termination which we detect here so that it doesn't lead to
# job failure.
subtype=$(jq -r 'select(.type == "result") | .subtype // ""' \
${{ runner.temp }}/claude-execution-output.json 2>/dev/null | head -1)
if [ "$subtype" = "error_max_budget_usd" ]; then
echo "The agent was forcefully terminated because of going over the budget"
rc=0
fi
exit $rc
- name: Write job summary
if: always()
run: |
jq -r 'select(.type == "result") | "## LLM Fuzzer Result\n\n"
+ (.result // "No result produced.")
+ "\n\n**Cost:** $\(.total_cost_usd // 0 | tostring) | **Duration:** \((.duration_ms // 0) / 1000 | tostring)s | **Turns:** \(.num_turns // 0)"' \
${{ runner.temp }}/claude-execution-output.json \
>> "$GITHUB_STEP_SUMMARY" 2>/dev/null || true
if [ -f ~/llm-fuzzer-repro.sql ]; then
printf '\n## Reproducer\n\n```sql\n' >> "$GITHUB_STEP_SUMMARY"
cat ~/llm-fuzzer-repro.sql >> "$GITHUB_STEP_SUMMARY"
printf '\n```\n' >> "$GITHUB_STEP_SUMMARY"
fi
- name: Upload Claude log
if: always()
uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
with:
name: Claude execution log
path: ${{ runner.temp }}/claude-execution-output.json
if-no-files-found: ignore
- name: Check for reproducer
if: always()
id: repro
run: test -f ~/llm-fuzzer-repro.sql && echo "found=true" >> $GITHUB_OUTPUT || true
- name: Rebuild after fuzzing
if: always() && steps.repro.outputs.found == 'true'
run: |
set -xeu
pkill -U "$(id -u)" postgres || true
sleep 2
- name: Restore clean PostgreSQL build
if: always() && steps.repro.outputs.found == 'true'
uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
with:
path: ~/${{ env.PG_SRC_DIR }}
key: ${{ steps.cache-postgresql.outputs.cache-primary-key }}
- name: Reinstall PostgreSQL and TimescaleDB
if: always() && steps.repro.outputs.found == 'true'
run: |
set -xeu
cd ~/$PG_SRC_DIR && make install
cd $GITHUB_WORKSPACE
git checkout -f ${{ github.sha }}
git clean -fd
make -j$(getconf _NPROCESSORS_ONLN) -C build install
- name: Run the reproducer
if: always() && steps.repro.outputs.found == 'true'
run: |
set -xeu
export PATH=$HOME/$PG_INSTALL_DIR/bin:$PATH
export PGDATA=verify_db
export PGPORT=5433
export PGDATABASE=postgres
initdb
cat >> $PGDATA/postgresql.conf <<CONF
shared_preload_libraries = 'timescaledb'
statement_timeout = '30s'
listen_addresses = ''
logging_collector = on
log_destination = 'jsonlog,stderr'
log_directory = '$(readlink -f .)'
log_filename = 'postmaster.log'
log_error_verbosity = verbose
CONF
pg_ctl start
psql -c "create extension timescaledb;"
psql -v ON_ERROR_STOP=0 -f ~/llm-fuzzer-repro.sql
psql -c "select 1"
pg_ctl stop
# The jq --exit-code option is broken with select() on jq-1.6 which we see
# on some machines, so we use grep instead (see https://github.com/jqlang/jq/issues/1139).
- name: Check for internal program errors
if: always() && steps.repro.outputs.found == 'true'
run: |
! jq 'select(
(.state_code == "XX000" and .error_severity != "LOG" and (.message | test("TestFailure") | not))
or (.message | test("resource was not closed|could not close|leak"))
) | [.message, .func_name, .statement] | @tsv
' -r postmaster.json | grep .
- name: Collect the logs
if: always()
id: collectlogs
run: |
# wait in case there are in-progress coredumps
sleep 10
if coredumpctl -q list >/dev/null; then echo "coredumps=true" >>$GITHUB_OUTPUT; fi
# print OOM killer information
sudo journalctl --system -q --facility=kern --grep "Killed process" || true
- name: Stack trace
if: always() && steps.collectlogs.outputs.coredumps == 'true'
run: |
sudo coredumpctl gdb <<<"
set verbose on
set trace-commands on
show debug-file-directory
printf "'"'"query = '%s'\n\n"'"'", debug_query_string
frame function ExceptionalCondition
printf "'"'"condition = '%s'\n"'"'", conditionName
up 1
l
info args
info locals
bt full
" 2>&1 | tee stacktrace.log
pwd
ls
./scripts/bundle_coredumps.sh
exit 1 # Fail the job if we have core dumps.
- name: Show sanitizer logs
if: always()
run: |
tail -vn +1 ${{ github.workspace }}/sanitizer_logs/sanitizer* || :
- name: Upload sanitizer logs
if: always()
uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
with:
name: sanitizer logs
# The log_path sanitizer option means "Write logs to 'log_path.pid'".
# https://github.com/google/sanitizers/wiki/SanitizerCommonFlags
path: ${{ github.workspace }}/sanitizer_logs/*
- name: Upload core dumps
if: always() && steps.collectlogs.outputs.coredumps == 'true'
uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
with:
name: Coredumps
path: coredumps
- name: Save PostgreSQL log
if: always()
uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
with:
name: PostgreSQL log
path: postmaster.*
- name: Upload llm-fuzzer-repro.sql
if: always()
uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
with:
name: llm-fuzzer-repro.sql
path: ~/llm-fuzzer-repro.sql
if-no-files-found: ignore
- name: Upload results to the database
if: always() && steps.repro.outputs.found == 'true'
env:
JOB_NAME: LLM fuzzer PG${{ needs.config.outputs.pg_latest }}
CI_STATS_DB: ${{ secrets.CI_STATS_DB }}
GITHUB_EVENT_NAME: ${{ github.event_name }}
GITHUB_REF_NAME: ${{ github.ref_name }}
GITHUB_REPOSITORY: ${{ github.repository }}
GITHUB_RUN_ATTEMPT: ${{ github.run_attempt }}
GITHUB_RUN_ID: ${{ github.run_id }}
GITHUB_RUN_NUMBER: ${{ github.run_number }}
JOB_STATUS: ${{ job.status }}
run: |
if [[ "${{ github.event_name }}" == "pull_request" ]] ;
then
GITHUB_PR_NUMBER="${{ github.event.number }}"
else
GITHUB_PR_NUMBER=0
fi
export GITHUB_PR_NUMBER
scripts/upload_ci_stats.sh