Re: postgres 9.5 DB corruption

2019-07-25 Thread Thomas Tignor
ACH STATEMENT EXECUTE PROCEDURE _ams_cluster.log_truncate('2') Disabled user triggers:     _ams_cluster_denyaccess BEFORE INSERT OR DELETE OR UPDATE ON ams.alert_attribute FOR EACH ROW EXECUTE PROCEDURE _ams_cluster.denyaccess('_ams_cluster')     _ams_cluster_truncatedeny BEFO

postgres 9.5 DB corruption

2019-07-24 Thread Thomas Tignor
Hello postgres community, Writing again to see if there are insights on this issue. We have had infrequent but recurring corruption since upgrading from postgres 9.1 to postgres 9.5. We are presently on 9.5.16. Our DB-facing app continually performs a mixture of DML, primarily inserts and update

Re: [External] postgres 9.5 DB corruption: invalid byte sequence for encoding "UTF8"

2019-03-26 Thread Thomas Tignor
abase WHERE datname = 'ams'"  datname | pg_encoding_to_char  -+-  ams     | UTF8 (1 row) r...@ams-repl7.sjc.netmgmt:~#  Tom    :-) On Tuesday, March 26, 2019, 10:14:59 AM EDT, Tom Lane wrote: "Brad Nicholson" writes: > Thomas

Re: postgres 9.5 DB corruption: invalid byte sequence for encoding "UTF8"

2019-03-26 Thread Thomas Tignor
Normally, when data corruption occurs, it appears very quickly with a Slony-I COPY failure. It seems there may not be time to write a checksum. Tom    :-) On Tuesday, March 26, 2019, 4:25:33 AM EDT, Laurenz Albe wrote: Thomas Tignor wrote: > We are experiencing intermittent DB

Re: [External] postgres 9.5 DB corruption: invalid byte sequence for encoding "UTF8"

2019-03-25 Thread Thomas Tignor
Hi Brad,Thanks for writing. As I mentioned to Vijay, the "source" is a JVM using the postgres v42.0.0 JDBC driver. I do not believe we have any explicit encoding set, and so I expect the client encoding is SQL_ASCII. The DB is most definitely UTF8. Our log shows no issue with the input data we'v

Re: [External] postgres 9.5 DB corruption: invalid byte sequence for encoding "UTF8"

2019-03-25 Thread Thomas Tignor
t catches on COPY in. Tom    :-) Regards, Vijay On Tue, Mar 26, 2019 at 12:17 AM Thomas Tignor wrote: > > Hoping someone may be able to offer some guidance on this recurring problem. > I am providing this "problem report" to the general list as I understand the > bugs list requires

postgres 9.5 DB corruption: invalid byte sequence for encoding "UTF8"

2019-03-25 Thread Thomas Tignor
Hoping someone may be able to offer some guidance on this recurring problem. I am providing this "problem report" to the general list as I understand the bugs list requires a set of reproduction steps we do not yet have. Please advise if I have the process wrong. I have tried to provide all know