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add description and optimize tests

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This commit is contained in:
lukelewang 2022-11-27 13:54:01 +08:00
parent ed71099ce6
commit 6e2be1d44f
4 changed files with 13 additions and 27 deletions
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11
doc/command-line-flags.md
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@ -247,7 +247,16 @@ Allows `gh-ost` to connect to the MySQL servers using encrypted connections, but
`--ssl-key=/path/to/ssl-key.key`: SSL private key file (in PEM format).
### storage-engine
default is `innodb`. When set to `rocksdb`, some necessary changes (e.g. sets isolation level to READ_COMMITTED) is made to support rocksdb as transactional engine.
default is `innodb`, and `rocksdb`as an optional. InnoDB and RocksDB are both transactional engines, supporting both shared and exclusive row locks.
But RocksDB currently lacks a few features support compared to InnoDB:
- Gap Locks
- Foreign Key
- Generated Columns
- Spatial
- Geometry
When `--storage-engine=rocksdb`, `gh-ost` will make some changes necessary (e.g. sets isolation level to `READ_COMMITTED`) to support RocksDB.
### test-on-replica

2
go/base/context.go
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@ -295,8 +295,6 @@ func (this *MigrationContext) SetConnectionConfig(storageEngine string) error {
switch storageEngine {
case "rocksdb":
transactionIsolation = "READ-COMMITTED"
case "innodb":
transactionIsolation = "REPEATABLE-READ"
default:
transactionIsolation = "REPEATABLE-READ"
}

3
go/cmd/gh-ost/main.go
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@ -252,6 +252,9 @@ func main() {
if *replicationLagQuery != "" {
migrationContext.Log.Warning("--replication-lag-query is deprecated")
}
if *storageEngine == "rocksdb" {
migrationContext.Log.Warning("RocksDB storage engine support is experimental")
}
switch *cutOver {
case "atomic", "default", "":

24
script/cibuild-gh-ost-replica-tests
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@ -71,33 +71,9 @@ test_mysql_version() {
if echo "$mysql_server" | egrep -i "percona" ; then
echo "### Preparing for rocksdb in PerconaServer"
gh-ost-test-mysql-master -uroot -e 'INSTALL PLUGIN ROCKSDB SONAME "ha_rocksdb.so"'
gh-ost-test-mysql-master -uroot -e 'INSTALL PLUGIN ROCKSDB_CFSTATS SONAME "ha_rocksdb.so"'
gh-ost-test-mysql-master -uroot -e 'INSTALL PLUGIN ROCKSDB_DBSTATS SONAME "ha_rocksdb.so"'
gh-ost-test-mysql-master -uroot -e 'INSTALL PLUGIN ROCKSDB_PERF_CONTEXT SONAME "ha_rocksdb.so"'
gh-ost-test-mysql-master -uroot -e 'INSTALL PLUGIN ROCKSDB_PERF_CONTEXT_GLOBAL SONAME "ha_rocksdb.so"'
gh-ost-test-mysql-master -uroot -e 'INSTALL PLUGIN ROCKSDB_CF_OPTIONS SONAME "ha_rocksdb.so"'
gh-ost-test-mysql-master -uroot -e 'INSTALL PLUGIN ROCKSDB_GLOBAL_INFO SONAME "ha_rocksdb.so"'
gh-ost-test-mysql-master -uroot -e 'INSTALL PLUGIN ROCKSDB_COMPACTION_STATS SONAME "ha_rocksdb.so"'
gh-ost-test-mysql-master -uroot -e 'INSTALL PLUGIN ROCKSDB_DDL SONAME "ha_rocksdb.so"'
gh-ost-test-mysql-master -uroot -e 'INSTALL PLUGIN ROCKSDB_INDEX_FILE_MAP SONAME "ha_rocksdb.so"'
gh-ost-test-mysql-master -uroot -e 'INSTALL PLUGIN ROCKSDB_LOCKS SONAME "ha_rocksdb.so"'
gh-ost-test-mysql-master -uroot -e 'INSTALL PLUGIN ROCKSDB_TRX SONAME "ha_rocksdb.so"'
gh-ost-test-mysql-master -uroot -e 'INSTALL PLUGIN ROCKSDB_DEADLOCK SONAME "ha_rocksdb.so"'
gh-ost-test-mysql-master -uroot -e 'set global default_storage_engine="ROCKSDB"'
gh-ost-test-mysql-master -uroot -e 'set global transaction_isolation="READ-COMMITTED"'
gh-ost-test-mysql-replica -uroot -e 'INSTALL PLUGIN ROCKSDB SONAME "ha_rocksdb.so"'
gh-ost-test-mysql-replica -uroot -e 'INSTALL PLUGIN ROCKSDB_CFSTATS SONAME "ha_rocksdb.so"'
gh-ost-test-mysql-replica -uroot -e 'INSTALL PLUGIN ROCKSDB_DBSTATS SONAME "ha_rocksdb.so"'
gh-ost-test-mysql-replica -uroot -e 'INSTALL PLUGIN ROCKSDB_PERF_CONTEXT SONAME "ha_rocksdb.so"'
gh-ost-test-mysql-replica -uroot -e 'INSTALL PLUGIN ROCKSDB_PERF_CONTEXT_GLOBAL SONAME "ha_rocksdb.so"'
gh-ost-test-mysql-replica -uroot -e 'INSTALL PLUGIN ROCKSDB_CF_OPTIONS SONAME "ha_rocksdb.so"'
gh-ost-test-mysql-replica -uroot -e 'INSTALL PLUGIN ROCKSDB_GLOBAL_INFO SONAME "ha_rocksdb.so"'
gh-ost-test-mysql-replica -uroot -e 'INSTALL PLUGIN ROCKSDB_COMPACTION_STATS SONAME "ha_rocksdb.so"'
gh-ost-test-mysql-replica -uroot -e 'INSTALL PLUGIN ROCKSDB_DDL SONAME "ha_rocksdb.so"'
gh-ost-test-mysql-replica -uroot -e 'INSTALL PLUGIN ROCKSDB_INDEX_FILE_MAP SONAME "ha_rocksdb.so"'
gh-ost-test-mysql-replica -uroot -e 'INSTALL PLUGIN ROCKSDB_LOCKS SONAME "ha_rocksdb.so"'
gh-ost-test-mysql-replica -uroot -e 'INSTALL PLUGIN ROCKSDB_TRX SONAME "ha_rocksdb.so"'
gh-ost-test-mysql-replica -uroot -e 'INSTALL PLUGIN ROCKSDB_DEADLOCK SONAME "ha_rocksdb.so"'
gh-ost-test-mysql-replica -uroot -e 'set global default_storage_engine="ROCKSDB"'
gh-ost-test-mysql-replica -uroot -e 'set global transaction_isolation="READ-COMMITTED"'