p2p/discover: limit open files for node database
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@ -17,6 +17,7 @@ import (
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"github.com/syndtr/goleveldb/leveldb"
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"github.com/syndtr/goleveldb/leveldb/errors"
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"github.com/syndtr/goleveldb/leveldb/iterator"
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"github.com/syndtr/goleveldb/leveldb/opt"
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"github.com/syndtr/goleveldb/leveldb/storage"
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"github.com/syndtr/goleveldb/leveldb/util"
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)
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@ -72,8 +73,8 @@ func newMemoryNodeDB() (*nodeDB, error) {
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// newPersistentNodeDB creates/opens a leveldb backed persistent node database,
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// also flushing its contents in case of a version mismatch.
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func newPersistentNodeDB(path string, version int) (*nodeDB, error) {
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// Try to open the cache, recovering any corruption
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db, err := leveldb.OpenFile(path, nil)
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opts := &opt.Options{OpenFilesCacheCapacity: 5}
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db, err := leveldb.OpenFile(path, opts)
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if _, iscorrupted := err.(*errors.ErrCorrupted); iscorrupted {
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db, err = leveldb.RecoverFile(path, nil)
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}
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