[jira] Commented: (COUCHDB-326) Occasional {error:error,reason:eacces} errors deleting a database on Windows
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https://issues.apache.org/jira/browse/COUCHDB-326?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12700990#action_12700990
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alisdair sullivan commented on COUCHDB-326:
---
exit(Pid, kill),
receive {'EXIT', Pid, close} - ok end,
To achieve a clean shutdown of the db and it's child processes, you need to
send it a signal other than kill and give it a chance to shutdown and cleanup
it's processes. The receive here doesn't do anything as a killed process sends
the 'EXIT' msg immediately upon being killed.
Occasional {error:error,reason:eacces} errors deleting a database on
Windows
Key: COUCHDB-326
URL: https://issues.apache.org/jira/browse/COUCHDB-326
Project: CouchDB
Issue Type: Bug
Affects Versions: 0.9
Environment: Windows, couch 0.9, erlang R12B 5.6.5
Reporter: Mark Hammond
On Windows, occasionally you will see errors attempting to delete a database.
This manifests itself by 10-30% of the test suite failing on Windows. If
you retry the tests that failed, they will usually pass on subsequent
attempts. Running the tests individually causes them to fail roughly 10% of
the time.
The log output shown is:
[debug] [0.18650.6] httpd 500 error response:
{error:error,reason:eacces}
[info] [0.18650.6] 127.0.0.1 - - 'DELETE' /test_suite_db/ 500
A slightly snipped transcript from IRC:
(2:58:32 PM) markh: I see a number of INFO logs Shutting down view group
server, monitored db is closing. directly before the error. I was guessing
the file may be unlink'd before one of those workers actually closes its
handle?
(2:58:54 PM) alisdair: yeah, it's probably a race condition
(2:59:13 PM) alisdair: where the delete is tried before the fd is let go
(2:59:26 PM) alisdair: the reader fd that is
(2:59:32 PM) markh: yeah
...
(3:11:47 PM) alisdair: i can't find an obvious deadlock
(3:12:18 PM) alisdair: couch_server:delete explicitly waits for the db
process to exit
(3:12:23 PM) alisdair: before deleting it
(3:15:15 PM) alisdair: i think i found the problem
(3:15:23 PM) alisdair: but i need a windows machine to confirm
(3:15:30 PM) alisdair: i'll look into it tomorrow
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[jira] Commented: (COUCHDB-245) Couch uses the erlang stdlib module regexp, which is deprecated and set to be removed. It should use the module re instead.
[ https://issues.apache.org/jira/browse/COUCHDB-245?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12672692#action_12672692 ] alisdair sullivan commented on COUCHDB-245: --- The use of regexp in mochiweb is just in the app skeleton, as far as I can tell it's not actually used anywhere by couch. It doesn't hurt to report it upstream though. I'd thought couch was targetting R12B-5 and above, but if it needs to run on previous versions, we should provide a module that wraps re and regexp and uses the appropriate module on the appropriate runtime version. Couch uses the erlang stdlib module regexp, which is deprecated and set to be removed. It should use the module re instead. --- Key: COUCHDB-245 URL: https://issues.apache.org/jira/browse/COUCHDB-245 Project: CouchDB Issue Type: Bug Components: Infrastructure Affects Versions: 0.7.2, 0.8, 0.8.1, 0.9 Environment: regexp is set to be removed from stdlib when R15 is released. Reporter: alisdair sullivan Attachments: couch_mochi_re_patch, couch_re_patch Original Estimate: 2h Remaining Estimate: 2h Couch uses the erlang stdlib module regexp, which is deprecated and set to be removed. It should use the module re instead. re is not a drop in replacement for regexp, it operates on and returns binary strings instead of native strings. Affects files couch_config.erl, couch_config_writer.erl, couch_httpd.erl, couch_httpd_server.erl, couch_log.erl and couch_server.erl. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Created: (COUCHDB-245) Couch uses the erlang stdlib module regexp, which is deprecated and set to be removed. It should use the module re instead.
Couch uses the erlang stdlib module regexp, which is deprecated and set to be removed. It should use the module re instead. --- Key: COUCHDB-245 URL: https://issues.apache.org/jira/browse/COUCHDB-245 Project: CouchDB Issue Type: Bug Components: Infrastructure Affects Versions: 0.7.2, 0.8, 0.8.1 Environment: regexp is set to be removed from stdlib when R15 is released. Reporter: alisdair sullivan Couch uses the erlang stdlib module regexp, which is deprecated and set to be removed. It should use the module re instead. re is not a drop in replacement for regexp, it operates on and returns binary strings instead of native strings. Affects files couch_config.erl, couch_config_writer.erl, couch_httpd.erl, couch_httpd_server.erl, couch_log.erl and couch_server.erl. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Updated: (COUCHDB-245) Couch uses the erlang stdlib module regexp, which is deprecated and set to be removed. It should use the module re instead.
[ https://issues.apache.org/jira/browse/COUCHDB-245?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] alisdair sullivan updated COUCHDB-245: -- Affects Version/s: 0.9 Couch uses the erlang stdlib module regexp, which is deprecated and set to be removed. It should use the module re instead. --- Key: COUCHDB-245 URL: https://issues.apache.org/jira/browse/COUCHDB-245 Project: CouchDB Issue Type: Bug Components: Infrastructure Affects Versions: 0.7.2, 0.8, 0.8.1, 0.9 Environment: regexp is set to be removed from stdlib when R15 is released. Reporter: alisdair sullivan Original Estimate: 2h Remaining Estimate: 2h Couch uses the erlang stdlib module regexp, which is deprecated and set to be removed. It should use the module re instead. re is not a drop in replacement for regexp, it operates on and returns binary strings instead of native strings. Affects files couch_config.erl, couch_config_writer.erl, couch_httpd.erl, couch_httpd_server.erl, couch_log.erl and couch_server.erl. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
