lix-project/lix-releng-staging
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lix-releng-staging/tests/gc-concurrent.sh

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* Add a test for a more subtle race: a process starting after the temporary root files have been read but creating outputs before the store directory has been read.
2005-01-31 22:01:55 +00:00
storeExpr1=$($TOP/src/nix-instantiate/nix-instantiate gc-concurrent.nix)
outPath1=$($TOP/src/nix-store/nix-store -q $storeExpr1)
storeExpr2=$($TOP/src/nix-instantiate/nix-instantiate gc-concurrent2.nix)
outPath2=$($TOP/src/nix-store/nix-store -q $storeExpr2)
* Add a test to check whether concurrent garbage collection (i.e., running the collector while builds are in progress) works correctly. The test currently fails.
2005-01-28 20:36:46 +00:00
* Start of concurrent garbage collection. Processes write temporary roots to a per-process temporary file in /nix/var/nix/temproots while holding a write lock on that file. The garbage collector acquires read locks on all those files, thus blocking further progress in other Nix processes, and reads the sets of temporary roots.
2005-01-31 10:27:25 +00:00
ls -l test-tmp/state/temproots
* Add a test for a more subtle race: a process starting after the temporary root files have been read but creating outputs before the store directory has been read.
2005-01-31 22:01:55 +00:00
# Start build #1 in the background. It starts immediately.
$TOP/src/nix-store/nix-store -rvv "$storeExpr1" &
pid1=$!
* Add a test to check whether concurrent garbage collection (i.e., running the collector while builds are in progress) works correctly. The test currently fails.
2005-01-28 20:36:46 +00:00
* Add a test for a more subtle race: a process starting after the temporary root files have been read but creating outputs before the store directory has been read.
2005-01-31 22:01:55 +00:00
# Start build #2 in the background after 3 seconds.
(sleep 3 && $TOP/src/nix-store/nix-store -rvv "$storeExpr2") &
pid2=$!
* Add a test to check whether concurrent garbage collection (i.e., running the collector while builds are in progress) works correctly. The test currently fails.
2005-01-28 20:36:46 +00:00
* Add a test for a more subtle race: a process starting after the temporary root files have been read but creating outputs before the store directory has been read.
2005-01-31 22:01:55 +00:00
# Run the garbage collector while the build is running. Note: the GC
# sleeps for *another* 2 seconds after acquiring the GC lock. This
# checks whether build #1
* Add a test to check whether concurrent garbage collection (i.e., running the collector while builds are in progress) works correctly. The test currently fails.
2005-01-28 20:36:46 +00:00
sleep 2
* Add a test for a more subtle race: a process starting after the temporary root files have been read but creating outputs before the store directory has been read.
2005-01-31 22:01:55 +00:00
NIX_DEBUG_GC_WAIT=1 $NIX_BIN_DIR/nix-collect-garbage -vvvvv
# Wait for build #1/#2 to finish.
echo waiting for pid $pid1 to finish...
wait $pid1
echo waiting for pid $pid2 to finish...
wait $pid2
* Add a test to check whether concurrent garbage collection (i.e., running the collector while builds are in progress) works correctly. The test currently fails.
2005-01-28 20:36:46 +00:00
* Add a test for a more subtle race: a process starting after the temporary root files have been read but creating outputs before the store directory has been read.
2005-01-31 22:01:55 +00:00
# Check that the root of build #1 and its dependencies haven't been
# deleted.
cat $outPath1/foobar
cat $outPath1/input-2/bar
* Add a test to check whether concurrent garbage collection (i.e., running the collector while builds are in progress) works correctly. The test currently fails.
2005-01-28 20:36:46 +00:00
* Add a test for a more subtle race: a process starting after the temporary root files have been read but creating outputs before the store directory has been read.
2005-01-31 22:01:55 +00:00
cat $outPath2/foobar
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