Pxc files

How to view PXC file? Sometimes you just need to see what is in the PXC file, without having to perform more complicated operations. Then the tools called PXC Viewer come in handy. PXC viewer is some kind of simple tool that only allows you to view the contents of the PXC file. To view the content of the PXC file you can use several options: Programs that support PXC file extension PXC viewer did not handle your file? Take advantage of other options One of them is to use software that works with the PXC file. Below are some examples of verified applications. By using the dedicated software you will have more options, e.g. editing the PXC file or converting the PXC file to a different file format. Advantages and disadvantages of this solution Note, however, that this solution requires you to download and install the software dedicated to handling the PXC file on your device. Unfortunately, it is not possible to see the PXC file online in this case. This solution is more problematic, but also allows for more processing options for the PXC file. You can find some examples of dedicated software below, and the full list is here PXC File Opener Programs that support PXC ProShowOther options You haven't seen the content of your PXC file yet and you don't need additional software? Try other options. A lot of file formats contain plain text data or packed data. In this case, it is likely that you

Following commands in a separate shell to start this instance:$ kubectl exec cluster1-pxc-2 -- mysqld --wsrep_recover$ kubectl exec cluster1-pxc-2 -- sed -i 's/safe_to_bootstrap: 0/safe_to_bootstrap: 1/g' /var/lib/mysql/grastate.dat$ kubectl exec cluster1-pxc-2 -- sed -i 's/wsrep_cluster_address=.*/wsrep_cluster_address=gcomm:\/\//g' /etc/mysql/node.cnf$ kubectl exec cluster1-pxc-2 -- mysqldThe mysqld process will initialize the database once again, and it willbe available for the incoming connections.Go back to the previous shell and return the original Percona XtraDB Cluster image because the debug image is no longer needed:NotePlease make sure the Percona XtraDB Cluster version for the debug image matches the version currently in use in the cluster.$ kubectl patch pxc cluster1 --type="merge" -p '{"spec":{"pxc":{"image":"percona/percona-xtradb-cluster:8.0.39-30.1"}}}'NoteFor Percona XtraDB Cluster 5.7 this command should be as follows:$ kubectl patch pxc cluster1 --type="merge" -p '{"spec":{"pxc":{"image":"percona/percona-xtradb-cluster:5.7.44-31.65"}}}'Restart all Pods besides the cluster1-pxc-2 Pod (the recovery donor).$ for i in $(seq 0 $(($(kubectl get pxc cluster1 -o jsonpath='{.spec.pxc.size}')-1))); do until [[ $(kubectl get pod cluster1-pxc-$i -o jsonpath='{.status.phase}') == 'Running' ]]; do sleep 10; done; kubectl exec cluster1-pxc-$i -- rm /var/lib/mysql/sst_in_progress; done$ kubectl delete pods --force --grace-period=0 cluster1-pxc-0 cluster1-pxc-1Wait for the successful startup of the Pods which were deleted during the previous step, and finally remove the cluster1-pxc-2 Pod:$ kubectl delete pods --force --grace-period=0 cluster1-pxc-2After the Pod startup, the cluster is fully recovered.NoteIf you have changed the update strategy on the 1st step, don’tforget to revert it back to SmartUpdate with the following command:$ kubectl patch pxc cluster1 --type=merge --patch '{"spec": {"updateStrategy": "SmartUpdate" }}' Last update: 2025-03-21

Cluster1 --type="merge" -p '{"spec":{"pxc":{"image":"percona/percona-xtradb-cluster:8.0.39-30.1-debug"}}}'NoteFor Percona XtraDB Cluster 5.7 this command should be as follows:$ kubectl patch pxc cluster1 --type="merge" -p '{"spec":{"pxc":{"image":"percona/percona-xtradb-cluster:5.7.44-31.65-debug"}}}'Restart all Pods:$ for i in $(seq 0 $(($(kubectl get pxc cluster1 -o jsonpath='{.spec.pxc.size}')-1))); do kubectl delete pod cluster1-pxc-$i --force --grace-period=0; doneWait until the Pod 0 is ready, and execute the following code (it is required for the Pod liveness check):$ for i in $(seq 0 $(($(kubectl get pxc cluster1 -o jsonpath='{.spec.pxc.size}')-1))); do until [[ $(kubectl get pod cluster1-pxc-$i -o jsonpath='{.status.phase}') == 'Running' ]]; do sleep 10; done; kubectl exec cluster1-pxc-$i -- touch /var/lib/mysql/sst_in_progress; doneWait for all Percona XtraDB Cluster Pods to start, and execute the following code to make sure no mysqld processes are running:$ for i in $(seq $(($(kubectl get pxc cluster1 -o jsonpath='{.spec.pxc.size}')-1))); do pid=$(kubectl exec cluster1-pxc-$i -- ps -C mysqld-ps -o pid=); if [[ -n "$pid" ]]; then kubectl exec cluster1-pxc-$i -- kill -9 $pid; fi; doneWait for all Percona XtraDB Cluster Pods to start, then find the Percona XtraDB Cluster instance with the most recent data - i.e. the one with the highest sequence number (seqno) :$ for i in $(seq 0 $(($(kubectl get pxc cluster1 -o jsonpath='{.spec.pxc.size}')-1))); do echo "###############cluster1-pxc-$i##############"; kubectl exec cluster1-pxc-$i -- cat /var/lib/mysql/grastate.dat; doneThe output of this command should be similar to the following one:###############cluster1-pxc-0############### GALERA saved stateversion: 2.1uuid: 7e037079-6517-11ea-a558-8e77af893c93seqno: 18safe_to_bootstrap: 0###############cluster1-pxc-1############### GALERA saved stateversion: 2.1uuid: 7e037079-6517-11ea-a558-8e77af893c93seqno: 18safe_to_bootstrap: 0###############cluster1-pxc-2############### GALERA saved stateversion: 2.1uuid: 7e037079-6517-11ea-a558-8e77af893c93seqno: 19safe_to_bootstrap: 0Now find the Pod with the largest seqno (it is cluster1-pxc-2 in theabove example).Now execute the