Apigee 使用 Cassandra 資料庫儲存大部分的資料,包括 Proxy、快取和權杖的資料。「精簡」是縮減資料庫中儲存的資料大小的標準程序,如要維持資料庫的運作效率,極為重要。Cassandra 支援多種壓縮策略。Apigee 建議針對所有資料欄系列,所有 Edge for Private Cloud 客戶以 LeveledCompactionStrategy
策略執行 Cassandra 叢集,而非使用預設策略 SizeTieredCompactionStrategy
。LeveledCompactionStrategy
與 SizedTieredCompactionStrategy
相比,提供更好的效能、磁碟使用率更高、更有效率的壓縮功能,而且可用空間更少。
所有新的 Apigee 4.51.00 以上版本安裝都會自動使用 LeveledCompactionStrategy
設定 Cassandra。不過,如果您使用的是舊版 Apigee,或是已從舊版本升級至 Apigee 4.51.00,您的版本可能仍在搭配 SizeTieredCompactionStrategy
使用 Cassandra。如要找出 Cassandra 版本使用的壓縮策略,請參閱「檢查壓縮策略」一節。
本頁面說明如何將壓縮策略變更為 LeveledCompactionStrategy
。
準備
查看現有的密集策略
如要查看資料欄系列現有的壓縮策略,請按照「檢查壓縮策略」一文的說明操作。如果壓縮策略已是 LeveledCompactionStrategy
,則您不需要按照本頁其餘指示操作。
備份
因為變更壓縮策略會在 C* 節點中觸發完整的密集週期。這可能會因為壓縮負載和同時的應用程式流量造成一些延遲時間。您可能需要復原這項變更,才能從備份還原 Cassandra 節點。請參閱如何備份一文,瞭解如何在變更壓縮策略前備份資料。
壓縮處理量
將壓縮策略變更為 LeveledCompactionStrategy
後,壓縮可能會長時間執行。執行階段會因資料壓縮的大小而異。在壓縮週期內,Cassandra 可能會佔用更多系統資源。為確保壓縮不會佔用大量系統資源,導致 API 執行階段要求中斷,建議您設定壓縮處理量限制。
在每個節點上執行以下 nodetool
指令,將所有 C* 節點的壓縮處理量設為最大為 128 MB:
nodetool setcompactionthroughput 128
調整 VM 大小
執行這項變更之前,請確保 C* 節點具備充足的 CPU/記憶體資源。執行這項變更前,請確認沒有任何 C* 節點運作 CPU 負載的 25% 以上。
變更密集策略後,應執行完整的密集週期,因此建議在低流量期間變更壓縮策略。
分段執行作業
您可能無法在一天內完成所有節點的變更,特別是當您操作大型 Cassandra 叢集時,每個節點需要逐一重新建構索引。您可以針對單一結構定義或一個資料欄系列 (資料表) 變更壓縮策略。針對這種情況,請修改資料欄系列以變更其壓縮策略,然後在所有節點上重新建立資料表中的所有索引 (如有)。接著,針對每個資料表或索引鍵空間重複上述步驟。您可以對一個資料表執行這類執行作業,也可以將某個索引鍵空間細分為在不同日期執行。
舉例來說,如要變更 kms
結構定義中 oauth_20_access_tokens
資料欄系列的壓縮策略,您可以執行以下操作:
- 變更表格以變更壓縮策略:
ALTER TABLE kms.oauth_20_access_tokens WITH compaction = {'class' : 'LeveledCompactionStrategy'};
- 僅重新建構這個資料表的所有索引:
nodetool rebuild_index kms oauth_20_access_tokens oauth_20_access_tokens_app_id_idx nodetool rebuild_index kms oauth_20_access_tokens oauth_20_access_tokens_client_id_idx nodetool rebuild_index kms oauth_20_access_tokens oauth_20_access_tokens_refresh_token_idx
變更密集策略
整體來說,改變壓縮策略是兩個步驟:
- 修改每個表格的壓縮策略。
- 逐一重新建立每個節點的所有索引。
調整表格來設定新的密集策略
對任何 Cassandra 節點執行下列 Cassandra Query Language (CQL) 指令,一次變更一個索引鍵空間的策略。您可以在 cql
提示中執行 CQL。如要叫用 cql
提示:
/opt/apigee/apigee-cassandra/bin/cqlsh `hostname -i`
畫面會顯示類似以下的回應:
Connected to apigee at XX.XX.XX.XX:9042. [cqlsh 5.0.1 | Cassandra 2.1.16 | CQL spec 3.2.1 | Native protocol v3] Use HELP for help. cqlsh>
執行下列 CQL 以變更壓縮策略:
- 負責變更鍵空間
kms
壓縮策略的每位有效待開發行銷對象:ALTER TABLE kms.organizations WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE kms.maps WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE kms.apps WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE kms.app_credentials WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE kms.api_products WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE kms.apiproducts_appslist WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE kms.api_resources WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE kms.app_end_user WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE kms.oauth_20_authorization_codes WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE kms.oauth_20_access_tokens WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE kms.oauth_10_request_tokens WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE kms.oauth_10_access_tokens WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE kms.oauth_10_verifiers WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE kms.app_enduser_tokens WITH compaction = {'class' : 'LeveledCompactionStrategy'};
- 負責變更鍵空間
user_settings
壓縮策略的每位有效待開發行銷對象:ALTER TABLE user_settings.user_settings WITH compaction = {'class' : 'LeveledCompactionStrategy'};
- 負責變更鍵空間
keyvaluemap
壓縮策略的每位有效待開發行銷對象:ALTER TABLE keyvaluemap.keyvaluemaps_r21 WITH compaction = {'class' : 'LeveledCompactionStrategy'};
- 用來變更鍵空間
devconnect
壓縮策略的每位有效待開發客戶:ALTER TABLE devconnect.developers WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE devconnect.companies WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE devconnect.company_developers WITH compaction = {'class' : 'LeveledCompactionStrategy'};
- 負責變更鍵空間
counter
壓縮策略的每位有效待開發行銷對象:ALTER TABLE counter.counters_current_version WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE counter.counters_with_expiry WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE counter.counters WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE counter.key_timestamp_count WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE counter.timestamp_key WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE counter.period_timestamp WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE counter.gateway_quota WITH compaction = {'class' : 'LeveledCompactionStrategy'};
- 負責變更鍵空間
cache
壓縮策略的每位有效待開發行銷對象:ALTER TABLE cache.cache_entries WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE cache.cache_sequence_id_r24 WITH compaction = {'class' : 'LeveledCompactionStrategy'};
- 負責變更鍵空間
ax_custom_report_model
壓縮策略的每位有效待開發行銷對象:ALTER TABLE ax_custom_report_model.report_description WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE ax_custom_report_model.report_id_lookup WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE ax_custom_report_model.org_metadata WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE ax_custom_report_model.org_report_lookup WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE ax_custom_report_model.report_created_view WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE ax_custom_report_model.report_viewed_view WITH compaction = {'class' : 'LeveledCompactionStrategy'};
- 負責變更鍵空間
auth
壓縮策略的每位有效待開發行銷對象:ALTER TABLE auth.totp WITH compaction = {'class' : 'LeveledCompactionStrategy'};
- 負責變更鍵空間
audit
壓縮策略的每位有效待開發行銷對象:ALTER TABLE audit.audits WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE audit.audits_ref WITH compaction = {'class' : 'LeveledCompactionStrategy'};
- 負責變更鍵空間
apprepo
壓縮策略的每位有效待開發行銷對象:ALTER TABLE apprepo.organizations WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE apprepo.environments WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE apprepo.apiproxies WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE apprepo.apiproxy_revisions WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE apprepo.api_proxy_revisions_r21 WITH compaction = {'class' : 'LeveledCompactionStrategy'};
- 負責變更鍵空間
apimodel
壓縮策略的每位有效待開發行銷對象:ALTER TABLE apimodel.apis WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE apimodel.apis_revision WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE apimodel.resource WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE apimodel.method WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE apimodel.revision_counters WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE apimodel.template_counters WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE apimodel.template WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE apimodel.credentials WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE apimodel.credentialsv2 WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE apimodel.schemas WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE apimodel.security WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE apimodel.template_auth WITH compaction = {'class' : 'LeveledCompactionStrategy'};
- 負責變更鍵空間
identityzone
壓縮策略的每位有效待開發行銷對象:ALTER TABLE identityzone.IdentityZones WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE identityzone.OrgToIdentityZone WITH compaction = {'class' : 'LeveledCompactionStrategy'};
- 負責變更鍵空間
dek
壓縮策略的每位有效待開發行銷對象:ALTER TABLE dek.keys WITH compaction = {'class' : 'LeveledCompactionStrategy'};
- 負責變更鍵空間
analytics
壓縮策略的每位有效待開發行銷對象:ALTER TABLE analytics.custom_aggregates_defn WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE analytics.custom_rules_defn WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE analytics.custom_aggregates_defn_updates WITH compaction = {'class' : 'LeveledCompactionStrategy'}; ALTER TABLE analytics.custom_rules_defn_updates WITH compaction = {'class' : 'LeveledCompactionStrategy'};
重新建構索引
您需要在調整密集策略後執行這個步驟。逐一在各個 Cassandra 節點上逐一執行以下 nodetool
指令。
執行下列 nodetool
指令來重新建構索引:
- 重新建構索引鍵空間
kms
的索引:nodetool rebuild_index kms maps maps_organization_name_idx nodetool rebuild_index kms apps apps_app_family_idx nodetool rebuild_index kms apps apps_app_id_idx nodetool rebuild_index kms apps apps_app_type_idx nodetool rebuild_index kms apps apps_name_idx nodetool rebuild_index kms apps apps_organization_name_idx nodetool rebuild_index kms apps apps_parent_id_idx nodetool rebuild_index kms apps apps_parent_status_idx nodetool rebuild_index kms apps apps_status_idx nodetool rebuild_index kms app_credentials app_credentials_api_products_idx nodetool rebuild_index kms app_credentials app_credentials_organization_app_id_idx nodetool rebuild_index kms app_credentials app_credentials_organization_name_idx nodetool rebuild_index kms api_products api_products_organization_name_idx nodetool rebuild_index kms app_end_user app_end_user_app_id_idx nodetool rebuild_index kms oauth_20_authorization_codes oauth_20_authorization_codes_client_id_idx nodetool rebuild_index kms oauth_20_authorization_codes oauth_20_authorization_codes_organization_name_idx nodetool rebuild_index kms oauth_20_access_tokens oauth_20_access_tokens_app_id_idx nodetool rebuild_index kms oauth_20_access_tokens oauth_20_access_tokens_client_id_idx nodetool rebuild_index kms oauth_20_access_tokens oauth_20_access_tokens_refresh_token_idx nodetool rebuild_index kms oauth_10_request_tokens oauth_10_request_tokens_consumer_key_idx nodetool rebuild_index kms oauth_10_request_tokens oauth_10_request_tokens_organization_name_idx nodetool rebuild_index kms oauth_10_access_tokens oauth_10_access_tokens_app_id_idx nodetool rebuild_index kms oauth_10_access_tokens oauth_10_access_tokens_consumer_key_idx nodetool rebuild_index kms oauth_10_access_tokens oauth_10_access_tokens_organization_name_idx nodetool rebuild_index kms oauth_10_access_tokens oauth_10_access_tokens_status_idx nodetool rebuild_index kms oauth_10_verifiers oauth_10_verifiers_organization_name_idx nodetool rebuild_index kms oauth_10_verifiers oauth_10_verifiers_request_token_idx
- 重新建構索引鍵空間
devconnect
的索引:nodetool rebuild_index devconnect companies companies_name_idx nodetool rebuild_index devconnect companies companies_organization_name_idx nodetool rebuild_index devconnect companies companies_status_idx nodetool rebuild_index devconnect company_developers company_developers_company_name_idx nodetool rebuild_index devconnect company_developers company_developers_developer_email_idx nodetool rebuild_index devconnect company_developers company_developers_organization_name_idx nodetool rebuild_index devconnect developers developers_email_idx nodetool rebuild_index devconnect developers developers_organization_name_idx nodetool rebuild_index devconnect developers developers_status_idx
- 重新建構索引鍵空間
cache
的索引:nodetool rebuild_index cache cache_entries cache_entries_cache_name_idx
- 重新建構索引鍵空間
audit
的索引:nodetool rebuild_index audit audits audits_operation_idx nodetool rebuild_index audit audits audits_requesturi_idx nodetool rebuild_index audit audits audits_responsecode_idx nodetool rebuild_index audit audits audits_timestamp_idx nodetool rebuild_index audit audits audits_user_idx
- 重新建構索引鍵空間
apprepo
的索引:nodetool rebuild_index apprepo environments environments_organization_name_idx
- 重新建構索引鍵空間
apimodel
的索引:nodetool rebuild_index apimodel apis a_name nodetool rebuild_index apimodel apis a_org_name nodetool rebuild_index apimodel apis_revision ar_a_name nodetool rebuild_index apimodel apis_revision ar_a_uuid nodetool rebuild_index apimodel apis_revision ar_base_url nodetool rebuild_index apimodel apis_revision ar_is_active nodetool rebuild_index apimodel apis_revision ar_is_latest nodetool rebuild_index apimodel apis_revision ar_org_name nodetool rebuild_index apimodel apis_revision ar_rel_ver nodetool rebuild_index apimodel apis_revision ar_rev_num nodetool rebuild_index apimodel resource r_a_name nodetool rebuild_index apimodel resource r_api_uuid nodetool rebuild_index apimodel resource r_ar_uuid nodetool rebuild_index apimodel resource r_base_url nodetool rebuild_index apimodel resource r_name nodetool rebuild_index apimodel resource r_org_name nodetool rebuild_index apimodel resource r_res_path nodetool rebuild_index apimodel resource r_rev_num nodetool rebuild_index apimodel method m_a_name nodetool rebuild_index apimodel method m_api_uuid nodetool rebuild_index apimodel method m_ar_uuid nodetool rebuild_index apimodel method m_base_url nodetool rebuild_index apimodel method m_name nodetool rebuild_index apimodel method m_org_name nodetool rebuild_index apimodel method m_r_name nodetool rebuild_index apimodel method m_r_uuid nodetool rebuild_index apimodel method m_res_path nodetool rebuild_index apimodel method m_rev_num nodetool rebuild_index apimodel method m_verb nodetool rebuild_index apimodel template t_a_name nodetool rebuild_index apimodel template t_a_uuid nodetool rebuild_index apimodel template t_entity nodetool rebuild_index apimodel template t_name nodetool rebuild_index apimodel template t_org_name nodetool rebuild_index apimodel schemas s_api_uuid nodetool rebuild_index apimodel schemas s_ar_uuid nodetool rebuild_index apimodel security sa_api_uuid nodetool rebuild_index apimodel security sa_ar_uuid nodetool rebuild_index apimodel template_auth au_api_uuid
- 重新建構索引鍵空間
dek
的索引:nodetool rebuild_index dek keys usecase_index
驗證
- 按照檢查壓縮策略中的操作說明,檢查結構定義的壓縮策略變更是否已生效。
- 確認小工具已成功執行,且策略變更後,資料會經過壓縮:
- 在每個 cassandra 節點上執行下列
nodetool
指令,確認所有壓縮是否均已完成,且沒有任何待處理項目:nodetool compactionstats
- 使用上述指令進行驗證,確定沒有任何壓縮處於待處理狀態後,請檢查資料檔案的上次修改時間戳記 (位於 /opt/apigee/data/apigee-cassandra/data/),到執行壓縮策略變更 CQL 時的時間戳記之後。
- 在每個 cassandra 節點上執行下列
復原
如要復原,請採取下列其中一種做法:
方法 1:還原變更
將密集策略復原為 SizeTieredCompactionStrategy
。
針對一個鍵空間的任何 Cassandra 節點變更策略,一次執行下列 CQL。您可以在 cql
提示中執行 CQL。如要叫用 cql
提示:
/opt/apigee/apigee-cassandra/bin/cqlsh `hostname -i`
畫面會顯示類似以下的回應:
Connected to apigee at XX.XX.XX.XX:9042. [cqlsh 5.0.1 | Cassandra 2.1.16 | CQL spec 3.2.1 | Native protocol v3] Use HELP for help. cqlsh>
執行下列 CQL 以變更壓縮策略:
- 負責變更鍵空間
kms
壓縮策略的每位有效待開發行銷對象:ALTER TABLE kms.organizations WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE kms.maps WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE kms.apps WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE kms.app_credentials WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE kms.api_products WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE kms.apiproducts_appslist WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE kms.api_resources WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE kms.app_end_user WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE kms.oauth_20_authorization_codes WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE kms.oauth_20_access_tokens WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE kms.oauth_10_request_tokens WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE kms.oauth_10_access_tokens WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE kms.oauth_10_verifiers WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE kms.app_enduser_tokens WITH compaction = {'class' : 'SizeTieredCompactionStrategy'};
- 負責變更鍵空間
user_settings
壓縮策略的每位有效待開發行銷對象:ALTER TABLE user_settings.user_settings WITH compaction = {'class' : 'SizeTieredCompactionStrategy'};
- 負責變更鍵空間
keyvaluemap
壓縮策略的每位有效待開發行銷對象:ALTER TABLE keyvaluemap.keyvaluemaps_r21 WITH compaction = {'class' : 'SizeTieredCompactionStrategy'};
- 負責變更鍵空間
devconnect
壓縮策略的每位有效待開發行銷對象:ALTER TABLE devconnect.developers WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE devconnect.companies WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE devconnect.company_developers WITH compaction = {'class' : 'SizeTieredCompactionStrategy'};
- 負責變更鍵空間
counter
壓縮策略的每位有效待開發行銷對象:ALTER TABLE counter.counters_current_version WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE counter.counters_with_expiry WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE counter.counters WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE counter.key_timestamp_count WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE counter.timestamp_key WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE counter.period_timestamp WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE counter.gateway_quota WITH compaction = {'class' : 'SizeTieredCompactionStrategy'};
-
負責變更鍵空間
cache
壓縮策略的每位有效待開發行銷對象:ALTER TABLE cache.cache_entries WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE cache.cache_sequence_id_r24 WITH compaction = {'class' : 'SizeTieredCompactionStrategy'};
- 負責變更鍵空間
ax_custom_report_model
壓縮策略的每位有效待開發行銷對象:ALTER TABLE ax_custom_report_model.report_description WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE ax_custom_report_model.report_id_lookup WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE ax_custom_report_model.org_metadata WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE ax_custom_report_model.org_report_lookup WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE ax_custom_report_model.report_created_view WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE ax_custom_report_model.report_viewed_view WITH compaction = {'class' : 'SizeTieredCompactionStrategy'};
- 負責變更鍵空間
auth
壓縮策略的每位有效待開發行銷對象:ALTER TABLE auth.totp WITH compaction = {'class' : 'SizeTieredCompactionStrategy'};
- 負責變更鍵空間
audit
壓縮策略的每位有效待開發行銷對象:ALTER TABLE audit.audits WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE audit.audits_ref WITH compaction = {'class' : 'SizeTieredCompactionStrategy'};
- 負責變更鍵空間
apprepo
壓縮策略的每位有效待開發行銷對象:ALTER TABLE apprepo.organizations WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE apprepo.environments WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE apprepo.apiproxies WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE apprepo.apiproxy_revisions WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE apprepo.api_proxy_revisions_r21 WITH compaction = {'class' : 'SizeTieredCompactionStrategy'};
- 負責變更鍵空間
apimodel
壓縮策略的每位有效待開發行銷對象:ALTER TABLE apimodel.apis WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE apimodel.apis_revision WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE apimodel.resource WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE apimodel.method WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE apimodel.revision_counters WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE apimodel.template_counters WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE apimodel.template WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE apimodel.credentials WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE apimodel.credentialsv2 WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE apimodel.schemas WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE apimodel.security WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE apimodel.template_auth WITH compaction = {'class' : 'SizeTieredCompactionStrategy'};
- 負責變更鍵空間
identityzone
壓縮策略的每位有效待開發行銷對象:ALTER TABLE identityzone.IdentityZones WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE identityzone.OrgToIdentityZone WITH compaction = {'class' : 'SizeTieredCompactionStrategy'};
- 負責變更鍵空間
dek
壓縮策略的每位有效待開發行銷對象:ALTER TABLE dek.keys WITH compaction = {'class' : 'SizeTieredCompactionStrategy'};
- 負責變更鍵空間
analytics
壓縮策略的每位有效待開發行銷對象:ALTER TABLE analytics.custom_aggregates_defn WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE analytics.custom_rules_defn WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE analytics.custom_aggregates_defn_updates WITH compaction = {'class' : 'SizeTieredCompactionStrategy'}; ALTER TABLE analytics.custom_rules_defn_updates WITH compaction = {'class' : 'SizeTieredCompactionStrategy'};
變更所有資料欄系列後,如果您在將壓縮策略變更為 LeveledCompactionStrategy
時已重新建立索引,就必須重新建構索引。和先前重新建構所有索引的步驟相同。如果您之前沒有重新建構索引,則不需要在復原期間重新建構索引。
選項 2:從備份還原完整資料
如要執行完整資料還原作業,請參閱從備份還原中的操作說明。
查看壓縮策略
在 Cassandra 中,精簡策略是在資料欄系列 (資料表) 層級設定。您可以使用下方的 CQL 查詢,查看每個資料欄系列的壓縮策略。
您可以在 cql
提示中執行 CQL。如要叫用 cql
提示:
/opt/apigee/apigee-cassandra/bin/cqlsh `hostname -i`
畫面會顯示類似以下的回應:
Connected to apigee at XX.XX.XX.XX:9042. [cqlsh 5.0.1 | Cassandra 2.1.16 | CQL spec 3.2.1 | Native protocol v3] Use HELP for help. cqlsh>
決定目前的密集策略如下:
- 如果壓縮策略設為
SizeTieredCompactionStrategy
,下列查詢的輸出內容為org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy
。 - 如果壓縮策略設為
LeveledCompactionStrategy
,下列查詢的輸出內容為org.apache.cassandra.db.compaction.LeveledCompactionStrategy
。
執行下列 CQL 以驗證壓縮策略:
- 用來驗證鍵空間
kms
壓縮策略的 CQL:SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name ='kms' and columnfamily_name = 'organizations'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name ='kms' and columnfamily_name = 'maps'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name ='kms' and columnfamily_name = 'apps'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name ='kms' and columnfamily_name = 'app_credentials'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name ='kms' and columnfamily_name = 'api_products'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name ='kms' and columnfamily_name = 'apiproducts_appslist'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name ='kms' and columnfamily_name = 'api_resources'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name ='kms' and columnfamily_name = 'app_end_user'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name ='kms' and columnfamily_name = 'oauth_20_authorization_codes'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name ='kms' and columnfamily_name = 'oauth_20_access_tokens'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name ='kms' and columnfamily_name = 'oauth_10_request_tokens'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name ='kms' and columnfamily_name = 'oauth_10_access_tokens'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name ='kms' and columnfamily_name = 'oauth_10_verifiers'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name ='kms' and columnfamily_name = 'app_enduser_tokens';
- 用 CQL 驗證鍵空間
user_settings
的壓縮策略:SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'user_settings' and columnfamily_name = 'user_settings';
- 用 CQL 驗證鍵空間
keyvaluemap
的壓縮策略:SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'keyvaluemap' and columnfamily_name = 'keyvaluemaps_r21';
- 用 CQL 驗證鍵空間
devconnect
的壓縮策略:SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'devconnect' and columnfamily_name = 'developers'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'devconnect' and columnfamily_name = 'companies'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'devconnect' and columnfamily_name = 'company_developers';
- 用 CQL 驗證鍵空間
counter
的壓縮策略:SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'counter' and columnfamily_name = 'counters_current_version'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'counter' and columnfamily_name = 'counters_with_expiry'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'counter' and columnfamily_name = 'counters'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'counter' and columnfamily_name = 'key_timestamp_count'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'counter' and columnfamily_name = 'timestamp_key'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'counter' and columnfamily_name = 'period_timestamp'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'counter' and columnfamily_name = 'gateway_quota';
- 用 CQL 驗證鍵空間
cache
的壓縮策略:SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'cache' and columnfamily_name = 'cache_entries'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'cache' and columnfamily_name = 'cache_sequence_id_r24';
- 用 CQL 驗證鍵空間
ax_custom_report_model
的壓縮策略:SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'ax_custom_report_model' and columnfamily_name = 'report_description'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'ax_custom_report_model' and columnfamily_name = 'report_id_lookup'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'ax_custom_report_model' and columnfamily_name = 'org_metadata'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'ax_custom_report_model' and columnfamily_name = 'org_report_lookup'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'ax_custom_report_model' and columnfamily_name = 'report_created_view'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'ax_custom_report_model' and columnfamily_name = 'report_viewed_view';
- 用 CQL 驗證鍵空間
auth
的壓縮策略:SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'auth' and columnfamily_name = 'totp';
- 用 CQL 驗證鍵空間
audit
的壓縮策略:SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'audit' and columnfamily_name = 'audits'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'audit' and columnfamily_name = 'audits_ref';
- 用 CQL 驗證鍵空間
apprepo
的壓縮策略:SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'apprepo' and columnfamily_name = 'organizations'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'apprepo' and columnfamily_name = 'environments'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'apprepo' and columnfamily_name = 'apiproxies'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'apprepo' and columnfamily_name = 'apiproxy_revisions'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'apprepo' and columnfamily_name = 'api_proxy_revisions_r21';
- 用 CQL 驗證鍵空間
apimodel
的壓縮策略:SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'apimodel' and columnfamily_name = 'apis'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'apimodel' and columnfamily_name = 'apis_revision'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'apimodel' and columnfamily_name = 'resource'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'apimodel' and columnfamily_name = 'method'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'apimodel' and columnfamily_name = 'revision_counters'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'apimodel' and columnfamily_name = 'template_counters'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'apimodel' and columnfamily_name = 'template'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'apimodel' and columnfamily_name = 'credentials'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'apimodel' and columnfamily_name = 'credentialsv2'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'apimodel' and columnfamily_name = 'schemas'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'apimodel' and columnfamily_name = 'security'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'apimodel' and columnfamily_name = 'template_auth';
- 用 CQL 驗證鍵空間
identityzone
的壓縮策略:SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'identityzone' and columnfamily_name = 'identityzones'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'identityzone' and columnfamily_name = 'orgtoidentityzone';
- 用 CQL 驗證鍵空間
dek
的壓縮策略:SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'dek' and columnfamily_name = 'keys';
- 用 CQL 驗證鍵空間
analytics
的壓縮策略:SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'analytics' and columnfamily_name = 'custom_aggregates_defn'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'analytics' and columnfamily_name = 'custom_rules_defn'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'analytics' and columnfamily_name = 'custom_aggregates_defn_updates'; SELECT compaction_strategy_class from system.schema_columnfamilies where keyspace_name = 'analytics' and columnfamily_name = 'custom_rules_defn_updates';