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https://issues.apache.org/jira/browse/SOLR-3884?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13463332#comment-13463332
]
Steven Rowe commented on SOLR-3884:
-----------------------------------
Although under Cygwin Ctrl-C halts java programs for me, the shutdown hook
isn't invoked, e.g.:
{code:java}
public class ShutdownHookTest {
public static void main(String args[]) {
Runtime.getRuntime().addShutdownHook(new Thread() {
public void run() {
System.err.println("Hook invoked.");
}
});
while (true) {}
}
}
{code}
When I run the above and hit Ctrl-C from Cygwin I don't see anything printed to
the console. So this is consistent with the behavior Yonik saw with {{kill
-2}} from another window.
By contrast, from a cmd terminal window, the message does get printed to the
console.
> smoke tester on cygwin fails when testing example due to tlog recovery
> ----------------------------------------------------------------------
>
> Key: SOLR-3884
> URL: https://issues.apache.org/jira/browse/SOLR-3884
> Project: Solr
> Issue Type: Bug
> Reporter: Hoss Man
> Assignee: Steven Rowe
> Fix For: 4.0, 4.1, 5.0
>
> Attachments: java6.solr-example.log, java7.solr-example.log,
> solr-example.log
>
>
> while testing out 4.0-rc0, sarowe noted the he was seeing the smoke tester
> script fail while sanity checking the solr example.
> https://mail-archives.apache.org/mod_mbox/lucene-dev/201209.mbox/%3c6c78e97c707b5b4c8cc61d44f87545863ed...@suex10-mbx-03.ad.syr.edu%3E
> The crux of the issue seems to be...
> * the same directory is reused for testing the example in java6 and then java7
> * in some versions of cygwin, SIGINT does not do a clean shutdown of
> jetty+solr (with jvm close hooks that would do a hard commit)
> * when solr is shutdown uncleanly (the java6 run), the tlog is used on
> startup of the next (java7) run.
> * tlog recovery concurrent with rapid updates on startup can be problematic,
> commits may be ignored.
> The underlying questions about dealing with tlog recovery and concurrent
> updates from external clients have been spun off into SOLR-3888. this issue
> is focusing on changes that should be considered for the smoke tester.
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