How to import data from Bugzilla version 3.0 to latest 4.2. I am using MySQL database - bugzilla

I have installed new version on Linux Centos. I am older version installed on anther machine. Now want to import all old data to the latest version. Kindly leave suggestion if you have gone through this process.

This is all well documented in the Bugzilla wiki. See https://wiki.mozilla.org/Bugzilla:Move_Installation

Once your database is reloaded where you want you just need to process like explain here and BugZilla will check your database and upgrade it all alone . The tool works perfectly for having tested successfully an upgrade from bgz 2.2.21 to 3.5 ;)

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Data-Migration ElasticSearch 5.6.16 to 7.2.0

how can i perfom full data migration from ElasticSearch 5.6.16 to 7.2.0. I have an application running version 5.6.16. No i have to update some of the data to version 7.2.0. The manufacturer has written / provided an own tool for the migration, but this requires that the new installation (7.2.0) has been installed on a new separate server. But this is the only the last option for me. So what's an easy and good way to do this on the same machine? Or would it be an solution to install the new version (7.2.0) on the same machine with different port and then do my stuff as this would be two servers?
First backup the data and the re-import after installing new version? Did i get problems with the indexes (i read something about this.. that this could result in errors)
You have few questions but I will try to answer two important ones,
How can you run the two different version of elasticsearch on a single machine
Answer : it is possible although not recommended in production environment, as you guess it right, by running these two version on different ports.
How to migrate from ES 5.6 to 7.2
Answer: Elasticsearch provides the backward compatibility till last major version, so if you are upgrading to 7.X, than ES 6.X indices can be backed up and re-imported in ES 7.X but you can't do this for 5.X indices.
Note: Refer upgrade elasticsearch official doc for detailed explanation and process.

DataBase plugin in Tibco BW6

I try to install TIBCO ActiveMatrix BusinessWorks Plug-in for Database 8.3.1 from BW toolkit.
I select the plugin from Available Software and seems that is installing(i don't get any error).
After the installation, I expect to see the new nod(activity) in Palette library, but this is not happening. I don't see new things there.
I am using Tibco BusinessWorks 6.4 trial version.
I try to download the plugin from https://edelivery.tibco.com, but it says I do not have privileges to do download.
I solved the problem. It doesn’t have anything with using trial version.
The problem was that I installed TIBCO BW in “Program Files”(Tibco Home) with config files in “Program Data”.
It seams that is better to install somewhere where you do not need admin rights. I installed in another location and now everything in working fine now.

Challenges in Upgrading ClickHouse from 1.1.54343 to 19.*

i am new to clickhouse So, i want to update my clickhouse version 1.1.54231 to 19.6.2.11 in Production Environment I have few doubts.
Do i need to take a backup of my data before Upgrade of version or upgrade process takes care of data fail overs and corruptions .
To upgrade i am using this command please suggest if any better way possible
sudo apt-get update install --only-upgrade clickhouse-*
I am using Ubuntu 16.04 in Production any precautions i should need to take while upgrading.
which is the most stable 19.* version i should need to go with right now.
It is recommended to set up a testing environment first if you don't have one yet. Install the same ClickHouse version you currently have in production, run realistic workload there, see if everything continues to run fine when you upgrade ClickHouse, fix/adjust if not.
You should also check all "Backward Incompatible Change" sections of https://clickhouse.yandex/docs/en/changelog/ for all versions you are upgrading over.
Normally people use the latest version marked "stable" that works fine in their testing/preproduction environments.

Download Firebird Version 2.5.5

Where do I download the above version of Firebird which has corrected this issue
The 2.5.5 version is not officially released yet. If you want to test then you could use the snapshot build, available at http://www.firebirdsql.org/en/snapshot-builds/
Firebird 2.5.5 was just released: http://www.firebirdsql.org/en/firebird-2-5-5/
It is really good idea to upgrade to 2.5.5, since 2.5.3 and 2.5.4 had unpleasant issues with hanging on Services API calls.

Run pgrouting 1.x and 2.x on same machine

We want to run pgrouting 2.x on our test server. Additionally, we want existing applications still run on pgrouting 1.x.
Does anyone know, if it's possible installing and running them in parallel?
Currently, we run on Postgres 9.1.9 and PostGIS 2.0.1.
No, I do not think you can do this for the same postgresql version because both versions use a shared library file librouting.so and this file is not compatible between the old and new versions of pgrouting. If you install Postgresql 9.1 and 9.2 for example then you can install pgrouting 1.x on 9.1 and pgrouting 2.x on 9.2 without a problem. In hind sight, maybe I should have done a better job of change the file names to avoid this, but I didn't so its not going to work.
Also I do not think pgrouting 1.x will work with PostGIS 2.0.1 because they removed a lot of functions that pgrouting 1.x uses. It might be possible to solve this problem if you load the PostGIS legacy.sql file.

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