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fixed deletion of LRU items in block cache

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This commit is contained in:
Jarek Kowalski
2018-02-24 23:41:27 -08:00
parent 2a72a57dc8
commit 6efeb8a8ff
1 changed files with 7 additions and 2 deletions
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9
block/disk_block_cache.go
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@@ -115,12 +115,14 @@ func (c *diskBlockCache) listIndexBlocks(full bool) ([]Info, error) {
return c.readBlocksFromCacheFile(f)
}
}
} else {
log.Warn().Msgf("unable to open cache file %v: %v", cachedListFile, err)
}
log.Debug().Bool("full", full).Msg("listing index blocks from source")
blocks, err := listIndexBlocksFromStorage(c.st, full)
if err == nil {
log.Debug().Bool("full", full).Msg("saving index blocks to cache")
log.Debug().Bool("full", full).Msgf("saving %v index blocks to cache: %v", len(blocks), cachedListFile)
// save to blockCache
if data, err := json.Marshal(blocks); err == nil {
if err := c.writeFileAtomic(cachedListFile, c.appendHMAC(data)); err != nil {
@@ -157,6 +159,7 @@ func (c *diskBlockCache) readBlocksFromCacheFile(f *os.File) ([]Info, error) {
}
func (c *diskBlockCache) readBlocksFromSource(maxCompactions int) ([]Info, error) {
log.Printf("readBlocksFromSource (maxCompactions=%v)", maxCompactions)
var blocks []Info
ch, cancel := c.st.ListBlocks(indexBlockPrefix)
defer cancel()
@@ -265,7 +268,7 @@ func (c *diskBlockCache) sweepDirectory() error {
}
sort.Slice(items, func(i, j int) bool {
return items[i].ModTime().Before(items[j].ModTime())
return items[i].ModTime().After(items[j].ModTime())
})
var totalSize int64
@@ -275,6 +278,7 @@ func (c *diskBlockCache) sweepDirectory() error {
}
if totalSize > c.maxSizeBytes {
fn := filepath.Join(c.directory, it.Name())
log.Printf("deleting %v", fn)
if err := os.Remove(fn); err != nil {
log.Printf("warning: unable to remove %v: %v", fn, err)
}
@@ -285,6 +289,7 @@ func (c *diskBlockCache) sweepDirectory() error {
}
func (c *diskBlockCache) deleteListCache() {
log.Printf("deleting list cache")
os.Remove(c.cachedItemName("list-full"))
os.Remove(c.cachedItemName("list-active"))
}