glusterfs

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#!/bin/bash
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. $(dirname $0)/../../include.rc
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. $(dirname $0)/../../volume.rc
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SHARD_COUNT_TIME=5
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cleanup
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TEST glusterd
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TEST pidof glusterd
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TEST $CLI volume create $V0 replica 3 $H0:$B0/${V0}{0,1,2}
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TEST $CLI volume set $V0 features.shard on
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TEST $CLI volume set $V0 features.shard-block-size 4MB
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TEST $CLI volume set $V0 features.shard-lru-limit 25
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TEST $CLI volume set $V0 performance.write-behind off
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TEST $CLI volume start $V0
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TEST $GFS --volfile-id=$V0 --volfile-server=$H0 $M0
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TEST $GFS --volfile-id=$V0 --volfile-server=$H0 $M1
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# Perform a write that would cause 25 shards to be created under .shard
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TEST dd if=/dev/zero of=$M0/foo bs=1M count=104
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# Read the file from $M1, indirectly filling up the lru list.
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TEST `cat $M1/foo > /dev/null`
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statedump=$(generate_mount_statedump $V0 $M1)
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sleep 1
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EXPECT "25" echo $(grep "inode-count" $statedump | cut -f2 -d'=' | tail -1)
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rm -f $statedump
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# Delete foo from $M0.
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TEST unlink $M0/foo
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# Send stat on foo from $M1 to force $M1 to "forget" inode associated with foo.
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# Now the ghost shards associated with "foo" are still in lru list of $M1.
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TEST ! stat $M1/foo
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# Let's force the ghost shards of "foo" out of lru list by looking up more shards
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# through I/O on a file named "bar" from $M1. This should crash if the base inode
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# had been destroyed by now.
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TEST dd if=/dev/zero of=$M1/bar bs=1M count=104
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###############################################
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#### Now for some inode ref-leak tests ... ####
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###############################################
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# Expect there to be 29 active inodes - 26 belonging to "bar", 1 for .shard,
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# 1 for .shard/remove_me and 1 for '/'
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EXPECT_WITHIN $SHARD_COUNT_TIME `expr 26 + 3` get_mount_active_size_value $V0 $M1
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TEST rm -f $M1/bar
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EXPECT_WITHIN $SHARD_COUNT_TIME 3 get_mount_active_size_value $V0 $M1
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EXPECT_WITHIN $UMOUNT_TIMEOUT "Y" force_umount $M0
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EXPECT_WITHIN $UMOUNT_TIMEOUT "Y" force_umount $M1
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TEST $CLI volume stop $V0
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TEST $CLI volume delete $V0
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cleanup
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