reddycharan commented on a change in pull request #1281: Issue #570:
Introducing EntryLogManager.
URL: https://github.com/apache/bookkeeper/pull/1281#discussion_r176653861
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File path:
bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/SortedLedgerStorage.java
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@@ -209,16 +202,12 @@ public void onSizeLimitReached(final Checkpoint cp)
throws IOException {
public void run() {
try {
LOG.info("Started flushing mem table.");
- long logIdBeforeFlush = entryLogger.getCurrentLogId();
memTable.flush(SortedLedgerStorage.this);
- long logIdAfterFlush = entryLogger.getCurrentLogId();
// in any case that an entry log reaches the limit, we
roll the log and start checkpointing.
// if a memory table is flushed spanning over two entry
log files, we also roll log. this is
// for performance consideration: since we don't wanna
checkpoint a new log file that ledger
// storage is writing to.
- if (entryLogger.reachEntryLogLimit(0) || logIdAfterFlush
!= logIdBeforeFlush) {
- LOG.info("Rolling entry logger since it reached size
limitation");
- entryLogger.rollLog();
+ if (entryLogger.rollLogsIfEntryLogLimitReached()) {
Review comment:
i don't think it is significant to have any perf impact. First of all this
will be called once EntryMemTable reaches size limit, and in this method I'm
getting a collection of active entrylogs (in this case just one) and checks its
size. For entrylogperledger this collection is required but for single entrylog
it might not be required, but I want common implementation and it is called
just once per EntryMemTable size limit, so it is not a thing to be concerned
about.
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